US1993003A - Road shouldering machine - Google Patents

Description

March 5, 1935. J B GREEN Er AL 1,993,003

ROAD SHOULDERING MACH-INE Filed oct. 5, 1932 6 Sheets-sheet 1 March 5, 1935. J. B. GREEN Er A1.

ROAD SHOULDERING MACHINE 6 Sheets-She'et 2 Filed Oct. 5, 1932 J. B, GREEN ET AL March 5, 1935.

ROAD SHOULDERING MACHINE Filed Oct, 5. 1932 6 Sheets-Sheet l 5 NNN lNlarch 5, 1935. A 1 B GREEN p -r AL 1,993,903

ROAD sHoULDERING MACHINE Filed oct. 5, 1952 s sheets-sheet 4 r 1% b5 u 5i (U'tnes v March 5, 1935. J. B. GREEN Er AL ROAD SHOULDERING MACHINE Filed Oct. 5. 1932 6 Sgegts-Sheet 5 Lufen ons` WU @www S e A/M Ma'ch 5, 1935. J. B. GREEN ET AL.

ROAD SHOULDERING MACHINE Filed Oct. 5, 1932 6 Sheets-Sheet 6 s Rm w @mum " www Patented Mar. 5, 1935 UNITED STATES PATENT OFFICE ROAD sHoULDERING MACHINE tion of Illinois Application October 5,

20 Claims.

The present invention relates to an improved machine which we have devised primarily for the purpose of forming the shoulder` or berm along the side of a concrete highway or other improved surface roadway. In constructing improved suriace highways of concrete, brick, asphalt, etc., it is the general practice to form a ledge or surface of soil projecting outwardly from each side of the concrete or asphalt slab, so as to form a retaining banlr of soil for reenforcing the slab and also to increase the effective width of the road for vehicles which may Veer ci the slab. This ledge of soil, which is generally called the shoulder or berm of the road, usually extends from a level approximately flush with the top of the slab and slopes outwardly and downwardly to a drainage ditch along each side of the roadway.

The general object of the present inventionis to provide an improved machine for forming this shoulder, which will level or finish the shoulder by scraping or de'ecting excess soil inwardly along a deiiecting blade to an elevating conveyor which eievates this soil and dumps it into a wagon or truck traveling alongside the machine. The elevater and other parts of the machine are supported on a wheeled frame which is propelled along the concrete slab by a tractor or other pulling vehicle, and the deflecting blade is supported as a laterally extending Outrigger projecting from this frame.

Another object of the invention is to provide improved adjusting mechanism for adjustingy the vertical relation of the deflecting blade with respect to the wheeled frame. This improved adjusting mechanism comprises means for supporting and adjusting the inner end of the blade whereby this inner portion of the blade can be made to travel along a line substantially flush with the top of the concrete slab. Said improved im adjusting mechanism also comprises means for supporting and adjusting the outer end of the whereby the blade may be disposed substantially horizontal or inclined upwardly or downwardly at diiferent angles, as may be desired.

Another object of the invention is to provide improved adjusting mechanism for adjusting the iore-and-aft relation of the deiiecting blade with respect to the wheeled frame. This improved adjusting mechanism enables the blade to be in- 00 clined at different forwardly extending angles or at diiierent rearwardly extending angles vwith respect to the wheeled frame. l

Another object oi the invention is to provide a machine of this general type` characterized by an improved arrangement of power driven 1932, Serial No. 636,308

feeding screw or screw conveyor extending along the front f ace of the defiecting blade. Such feeding screw enables the machine to handle a greater volume of soil, and also enables the machineto operate satisfactorily with the deflecting blade placed at relatively obtuse fore-and-aft angles.

Another object of the invention isv to provide an improved ditch forming attachment which can be associated with the outer end of the deflecting blade for forming a drainage ditch along the outer edge of the shoulder.

If desired, the present machine may be specially constructed for the sole function of forming the shoulders along the sides of hard surface roads, although, for the sake of economy in equipment costs we have shown in the preferred embodiment of our invention a Vconstruction in the nature of an attachment which can be readily attached to v the side of an elevating grader. By such arrangement,A the elevating grader can be utilized to prepare the grade, preparatoryeto laying the concrete, and may then be readily converted into a road shoulder former to level and finish the shoulders after the laying of the concrete.

Other objects and advantages of the invention will appear from theY following detail description of'a preferred embodiment thereof. In the accompanying drawings illustrating such embodiment:

Figure 1 is a rear end elevation, partly broken away, showing the general relation of the deiiecting blade with reference to the elevating conveyor;

Figure 2 is a fragmentary view on a larger scale illustrating one preferred manner of mountingon the wheeled frame the longitudinal supporting beam which carries the inner portion of the deilector blade Outrigger assembly;

Figure 3 is a fragmentary side elevational View of the machine, as viewed from the deflecting blade side thereof; e

Figure 4 is a plan view illustratingi the Outrigger frame which carries the deilecting blade, and illustrating certain parts of the adjusting mechanism for adjusting this Outrigger frame;

Figure 5 is a vertical sectional detail View taken approximately on the plane of the line 5-5 of Figure 3 and illustrating one of the mechanisms for adjusting the inner portion of the outrigger frame and blade relatively to the wheeled frame;

Figure 6 is a fragmentary vertical sectional View taken approximately on the planes of the lines 6-6 of Figures 3 and 4, illustrating one form` of mechanism for adjusting the outer portion of the outrigger frame and blade relatively to the wheeled frame;

Figure 7 is a fragmentary perspective view of the outer auxiliary blade, which is used as an attachment for forming a ditch, leveling a subgrade at the outer side of the shoulder, and performing like operations, this view illustrating one preferred manner of adjustably attaching said auxiliary blade to the main blade;

Figure 8 is a fragmentary sectional view, somewhat similar to Figure 6, showing modined constructions of adjusting mechanisms for raising and lowering the outer and inner portions of the main blade;

Figure 9 is a detail sectional View onv a larger scale, taken on the plane of the line 9-9 of Figure 8;

Figure 10 is a view similar tol Figure 8 showing other modified constructions of adjusting mechanisms for raising and lowering the outer and vinner portions of the main deflecting blade;

Figure 11 isay front view of an embodiment usinga feeding screw;

Figure l2 is a fragmentary plan view thereof;

Figure 13 is a fragmentary plan of the rear end of the machine, showing the use of a supplementary deflecting blade; and y Figure 14 is a transverse sectional view of this latter blade.

Referring rst to Figures l, 2 and 3, the wheeled frame of the present machine is indicated in its entirety at 16. As shown in Figure 1, the rear end of said frame` is supported on rear wheels 17; the front end of the frame is supported on any suitable arrangement of front wheels, not shown, which may be mounted on a front truck having swiveled connection with the frame, or which front wheels may have knuckle pin mounting on said main frame 16. The elevator is generally indicated at 2l, and vpreferably extends transversely of the frame 16, this elevator comprising a conveyor belt 22 which receives the soil from the deecting blade at one side of the main frame and carries this soil upwardly to a discharge point at the other side of the frame, for discharging the soil into a wagon or truck traveling alongside the machine. The conveyor belt 22 may be driven from a power plant 24 mounted directly on the wheeled frame 16, or this belt may be driven by power derived from the tractor or other pulling vehicle through a power take-off attachment, 'Ihis main frame 16, the elevator 21, the mechanism for driving the conveyor belt 22 of the elevator, and other associated parts, are fully disclosed in the copendingapplication of James B. Green and John M. Rathmell, Serial No. 603,460, led April 6, 1932, on Elevating grader. The machine of thatapplication isan elevatinggrader wherein a plow at one side of the frame breaks upl the soil and feeds it to the lower receiving end of the conveyor 2l, from whence it is conveyed upwardly to the discharge point for dumping into wagons or trucks traveling alongside the machine. As previously remarked, although it is within the purview of our invention to embody the present shoulderV forming mechanism in a machine functioning solely for that purpose, it is, on the other hand, an object of our invention to provide shoulder forming apparatus which can be readily applied as an attachment to elevating graders of the type disclosed in the aforesaid copending application or to elevating graders generally having a suitable arrangement of elevating conveyor mechanism. Certain parts of the mechanism for adjusting the present deflecting blade are mounted on the vertical side bars 26 of the frame 16. In the construction disclosed in the aforementioned application these vertical side bars 26 are parts of longitudinally spaced frame assemblies which are rigidly anchored to a central, longitudinally extending torsion tube 27 constituting the backbone of the frame structure.

The present deflecting blade is indicated in its entirety at 3l. ln adapting this blade to the elevating grader, the plow of the grader is removed and the blade 31 is arranged so that its inner delivery end will discharge the soil onto the rcceiving end of the belt conveyor 22 as this soil is deflected inwardly along the blade during the forward travel of the machine. The blade is suspended from an Outrigger frame or support generally indicated at 32 which, as shown in Figures l, 2 and 3, has hinged mounting on a longitudinally extending beam 33 which is carried by the wheeled frame 16. The supporting beam 33 may be the plow beam, on which the plow of the elevating grader ijs ordinarily mounted, or it may be a special beam bar substituted therefor. The outrigger support 32 also comprises a longitudinally extending beam 34 which is spaced outwardly from the supporting beam 33 and extends substantially parallel thereto. At spaced points along the lengths of the two beams, hinge brackets 35 are secured thereto, the cooperating eye portions of these hinge brackets receiving hinge pins 36 which denne a substantially longitudinally extending pivot axis about which the Outrigger support and deflecting blade can tilt relatively to the main supporting beam 33.

This main supporting beam 33 can be raised and lowered, so as to vertically adjust the pivot axis 36 and thereby the inner portion of the blade 31 relatively to the top of the concrete slab s and relatively to the receiving end of the conveyor belt 22. As shown in Figure 2, said suplongitudinal beam 33, so that the beam is eifec- 5 tively supported for up and down adjusting movement around the axis of the aligned pivot pins 41. The transverse bars 38, together with the longitudinal beam 33, constitute, in elfe-ct, a sub-frame which can be shifted to different inward or outward positions crosswise of the wheeled frame by having the pivot pins 41 pass through different ones of the holes 44 in the outer portions of the transverse bars 33. The

ydraft force borne by the supporting beam 33 is 3 transmitted thereto through a draft connection 45 (Fig. 3) connecting at its forward end with the frame 16 and connecting at its rearward en' with the beam 33 or with the forwardly disposed transverse bar 38. This draft connection has a turn buckle 46 interposed therein by the manipulation `of which the longitudinal beam 33 be shifted forwardly or rearwardly with resp to the frame 16. It will be seen from the foregoing that this longitudinal supporting beain is thus capable of being raised or lowered arou the pivot axis defined by the pivot pins 4i; i capable of being shifted inwardly or outwardly, transversely of the machine, by locating these pivot pins 41 in different ones of the holes 44;

Cil

and is also capable of being shifted lengthwise along the side of the frame 16 by manipulation of the turn buckle 46. These three adjustments or movements of which the beam is capable enable the inner portion of the delecting blade 3l to be accurately positioned in any desired relation with respect to the top of the concrete slab s and with respect to the receiving lend of the belt conveyor 22. v

Occasion for adjusting the inner portion of the blade vertically frequently arises in the operation of the machine, and the mechanism for performing this vertical adjustment is actuatable from the operators platform while the machine is in motion, which mechanism we shall now describe. In one form, this mechanism comprises two upwardly extending adjusting screws 51, 51 which have operative connection with the longitudinal beam 33 adjacent to the front and rear ends thereof. As best shown in Figure 5, each threaded shaft 51 screws through the threaded bore of a nut 52. Said nut has a spherical outer surface which seats in a spherical socket formed between the halves of a splitmounting block 53. A lug 54 projecting from the spherical nut 52 has loose engagement in a recess 55 in said mounting block whereby the nut is held against rotation with the threaded shaft but is permitted to oscillate freely in the mounting block in any direction. The universal joint established between the ball nut and the mounting block accommodates any of the above described transverse or longitudinal adjustments of the beam 33. The mounting block 53 is secured to an angle bracket 57 which is fastened to the beam 33. The upper portion of each screw shaft 51 has a universal thrust bearing connection with the frame which also accommodates the transverse and longitudinal adjustments of the beam. An upper reduced portion 51a, of said shaft provides a shoulder 51h which bears against the bottom of a spherical thrust collar 6l through which the reduced portion passes. The spherical surface of said thrust collar engages in a spherical recess formed between the halves of a split mounting block 62 which is secured to a bracket 63 anchored to one of the vertical frame bars 26. The collar 61 bears the end thrust which is frequently set up in imposing the weight of the frame 16 on the inner portion of the delecting blade for holding said blade down to the desired scraping level. The reduced shaft end 51a has connection through a universal joint 65 with a short coupling shaft 66, which, in turn has connection through a second universal joint 67 with an upper shaft 68. Said upper shaft is journaled in a bearing 69 which is secured to a bracket 71 suitably mounted on the main frame structure. A bevel gear 73 mounted on the upper end of said shaft meshes with a cooperating bevel gear 74 which is secured to a longitudinally extending shaft 75. The two screw shafts 51 have the same operative connectionwith the beam 33 and have the same driven connection with the shaft 75 through the bevel gears and universal joints, and it will hence be seen that upon rotation of the shaft 75 both ends of the beam 33 will be caused to rise or lower together. The shaft 75 is journaled in suitable bearings 76 mounted on the main frame structure, and the rear end of said shaft carries a hand wheel 77 which the operator, standing on the operators platform 78 at the rear end of the main frame, can rotate for appropriately raising or lowering the inner portion of the deflecting blade. While the irreversible action of the screw shafts `51 Will serve to automatically hold the blade inrany vertically adjusted position, there may also be provided a suitable latching mechanism for holding the shaft 75 against rotation after each adjustment, if such mechanism is desired.

Referring to Figure 4, the outrigger structure 32 is of triangular outline, comprising the longitudinal channel beam 34, the laterally extending pipe 84 and the diagonal pipe 85. "Ihe two pipes have their inner ends secured to the channel beam 34 in any suitable manner, preferably by welding, as indicated at 84a and 85a; and the outer ends of the two pipes are joined together, also preferably by welding, as indicated at 86. The deflecting blade 31 preferably extends'substantially at the fore and aft angle of the dlagonal pipe 85. Projecting downwardly from the latter are two spaced arms 88 (Figure 3) which have their upper ends secured to said pipe 85, preferably by welding. The lower ends of said arms are apertured to receive pivot bolts 89 by which the deecting blade is pivotally supported on the lower ends of said arms. The blade is curved to present a concave forward surface to the material and comprises a longitudinally extending hardened steel bit 31h which is bolted along a recess formed by an offset flange portion 31a extending lengthwise of the lower portion of the blade. The removable bit 31h along the scraping edge of te blade can be renewed in the event o-f Wear without having to replace the entire blade. Riveted along the back side of the blade, above the bit 31D', is an angle bar 91 to which are secured angle brackets 92 disposed on opposite sides of each sup-- porting arm 88 and receiving the pivot bolts 89. The blade is adjustably held at any desired tilted angle by two links 94 which have their forward ends pivotally connected to angle brackets 95 secured to the upper portion of the blade. The links 94 have a series of holes 96 therein, any one of which can receive a pin or bolt 97 mounted in the adjacent supporting arm 88. The blade can be tilted to any desired angle about the pivot axis S9 by disposing the bolts or pins 97 in different ones of the holes 96 in links 94. The arms 88 are preferably braced transversely by diagonal rods 99 which are secured at their lower ends to said arms and secured ait their upper ends to an intermediate point of the pipe 85. Referring to Figure 3, the deilecting blade 31 is generally positioned with its inner discharge end in close proximity to the side board or wall defining the rear side ofV the conveyor trough through which the conveyor belt 22 travels. The slight gap between the blade and this side board is closed by a substantially vertical plate 104 which overlaps the 'end' of the blade. This plate is fixedly secured by a strap or bar 106 to the frame of the elevator. A diagonal deflecting bar 107 extends inwardly under the elevator and said deflecting bar 107 to slide along on the concrete slab and to rise and fall upon encountering any variations in the surface of the slab or any projections. As described at length in the previously mentioned copending application, the elevator 21 is adjustable so that the receiving end of the belt conveyor 22 can be raised or lowered if desired. This receiving end of the elevator frame has a shoe 114 (Figure 1) secured thereto, this shoe having an upwardly turned forward end and having draft attachment with the main frame and being ordinarily allowed to slide directly on the concrete slab in its present use.

'I'he mechanism for raising and lowering the outer portion of the Outrigger support and deflecting beam. is generally indicated at 116, and in the form shown in Figures 1-6 it comprises a relatively long threaded shaft 117 and a long interiorly threaded sleeve 118 which screws over said sha-ft. Fixedly secured to the upper end of the sleeve is a chain sheave 119 and xedly secured to the back side of said sheave is a two-part hub structure 121. The threaded sleeve, sheave and hub are hung on a shaft 122 and are arranged to rotate about the axis of said shaft. The shaft has a reduced portion or annular groove 123 and the two-part hub structure has a collar portion 124 which engages in this annular groove and holds the hub structure, sheave and sleeve against shifting endwise on the shaft 122. The upper end of said shaft has attached thereto a spherical socket 126 made up of two cooperating socket halves 127 adapted to be clamped together. This spherical socket engages over a ball 128 projecting longitudinally from a bracket 129 which is mounted on the main frame 16. This bracket is supported on extension frame bars 131 projecting outwardly from the vertical frame bars 26. The ball and socket mounting 126, 128 enables the extensible shaft and sleeve element 117, 118 to swing upwardly and downwardly or forwardly and rearwardly in any of the adjustments given the deflecting blade.

Rotative movement is transmitted to the sheave 119 through a chain 134 which extends backwardly and loops around a sheave 135 (Figure 5) which is mounted on a cross shaft 136. This cross shaft is supported in the bearings 137 of an extension bearing frame 138 projecting from the main frame in proximity to the operators platform 78. A hand wheel 141 is secured to the outer end of the shaft 136 and can be rotated by the operator for transmitting rotative movement to the threaded sleeve 118. Suiiicient slack is provided in the chain 134 to accommodate all of the movements of the extensible shaft and sleeve structure 117, 118 and the two chain sheaves 119, 135 have pockets in their peripheries adapted to receive the links for transmitting a drive from one sheave to the other notwithstanding this slack.

Operative connection is established between the threaded shaft and the Outrigger support by means of a ball and socket joint 143, 144. The ball 143 projectsy rearwardly from a bracket 145 (Figure 4) which is secured to the outer end of the transverse pipe 84. The socket 144 consists of two halves which clamp over the ball and which are secured to the lower extension portion 117a of the shaft 117.

It will be observed that the above described adjusting mechanism 116 is effective to raise or lower the outer portion of the deflecting blade for different heights and slopes of shoulder, and is also capable of exerting a positive downward pressure on the outer portion of the blade for holding the blade down in the soil against forces tending to swing the blade upwardly. The ball and socket joints at both extremities of the extensible shaft and sleeve construction accommodate all adjustments of the deflecting blade, including any fore and aft adjustment which might be given the channel beams 33 and 34.

We have also illustrated a cable operated lifting mechanism for raising the Outrigger support and blade. This mechanism comprises a cable 151 which has one end 151e dead-ended to the frame, has its intermediate portion reeved through a sheave 152 and has its other end 151b wound around a winding shaft 153. The sheave 152 is connected through a link 154 with an eye 155 projecting upwardly from the outer portion of the diagonal pipe 85. The winding shaft 153 extends longitudinally of the frame and has its ends supported in bearings 156 secured to the frame. The rear end of said shaft has a suitable chain drive connection 158 with a hand wheel 159 which is suitably supported adjacent to the operators platform 78. Any suitable latching mechanism may be provided for holding the winding shaft 153 against rotation after the desired amount of cable has been wound thereon. When this cable wind mechanism is employed in conjunction with the extensible shaft and sleeve structure 117, 118, the shaft 117 is provided with a folding joint therein, as indicated at 166 (Figure 6). This folding joint comprises a sleeve 167 in which the upper threaded section of the shaft is rigidly secured, and a lower sleeve 168 in which the lower extension portion 1176i of the shaft is likewise rigidly secured.

These two sleeves 167, 168 have cooperating pairs of hinge eyes 167a, 168a projecting from the bottoms of both sleeves and projecting from the tops thereof. A hinge pin 169 passes through the bottom eyes, and a releasable coupling pin 171 passes through the top eyes. When the pin 171 is in place the two sections 117 and 117e of the shaft are joined as a rigid unit. Upon removal of the upper pin 117 the joint connection can be folded in an upper direction so that both sections of the shaft extend downwardly from this joint. When it is desired to transport the machine across bridges, culverts and through other restricted spaces the top coupling pin 171 is removed, the joint is broken in an upper direction, and the winding shaft 153 is then revolved for swinging the Outrigger frame and deflecting beam in an upward direction around the longitudinal pivot axis 36. The Outrigger frame and blade can be swung to a substantially vertical position, almost parallel with the side of the main frame, for passing through restricted spaces. The cable lifting mechanism enables the outrigger frame and blade to be raised more rapidly and to a steeper angle than would be possible through operation of the adjusting mechanism 116.

Attention is called to the fact that as an alternative arrangement the adjusting mechanism 116 might be dispensed with, and the cable windup mechanism 151-159 might be employed in lieu thereof for all working adjustments as well, particularly if the Outrigger frame or deflecting blade were weighted with sucient weight to hold them down in their various working adjustments. However, under most conditions the illustrated arrangement is preferable to such alternative arrangement because it enables any desired portion of the weight of the main frame to be transmitted to the outer end of the deflecting blade through the stiff leg connection CIK 11.7, 118, for holding this end of the blade down against all upwal d pressures.' Y

As shown in Figure 4, a small platform plate 174 is extended between the channel beam 34 and diagonal pipe 85, and secured on this plate is a spirit level 175 which can be observed by the operator from his positionvon the operators platform. This spirit level may be so arranged that it will indicate when the deflecting blade 31 is exactly horizontal, or is inclined outwardly and downwardly at any angle desired for the finished shoulder.

When it is desired `to have the machine predetermine a definite width of shoulder, or to form a drainage ditch, or a finished downward slope, or a sub-grade, along the outer edge of the shoulder, simultaneouslyv with the formation of the shoulder, an auxiliary deilecting blade 181 is attached to the outer portions of the Outrigger support and main deflecting blade. As shown in Figure 7 this auxiliary blade overlaps part of the outer end of the main blade, but extends outwardly beyond the latter and at a reverse fore-and-aft angle thereto. This auxiliary blade l also preferably comprises a curved plate having an offset lip 181e along its lower edge, to which lip a removable bit 181D is bolted. A diagonal strut, preferably in the form of a length of pipe 184, is extended between the outer lower portion of the auxiliary blade and the diagonal pipe 85 of the outrigger support. The outer end of said pipe strut has an extension eye 185 carried thereby, which is linked to a clevis or'U-bolt 186 projecting rearwardly from-the offset flange 181e of the blade. The inner end of the pipe strut has a turn-buckle 188 extending therefrom and this turn-buckle carries at its other end an eye 189 which is adapted to be hooked selectively over any one of a plurality of hook lugs 191 projecting outwardly from the rear side of vthe pipe 85. The engagement of the eye 189 over any one of these hook'lugs affords a major adjustment for the strut 184, and the turn-buckle 188 affords a relatively hner adjustment. The forward end of the auxiliary blade has a pulling attachrnent to the main deflecting blade through the medium of a strap 194'whieh has its rear end bifurcatedv vertically to embrace the end of the blade and to receive a bolt 195 passing through this bifurcated end and through one of a series of vertically spaced holes 196 in the end of the auxiliary blade. The shifting of the kbolt 195 from one to another of the holes 196 adjusts the height of the forward or inner end of the auxf iliary blade with respect to the main deflecting blade. The forward end of said strap receives bolts 197 which pass down through holes 198 in the horizontal flange of the` angle'bar 91. There are spaced groups of these holes 198 for enabling the auxiliary blade to be positioned at different locations inwardly or outwardly along the length of the main blade. By locating said auxiliary blade at any one of these inward or outward locations, the shoulder or berm can be made'of any desired width. Y

For supporting the upper portion of the auxilv iary blade, an extension pipe '202 is telescopically mounted within the open outer end of the transverse pipe 84. This extension pipe 292 can be shifted inwardly or outwardly to any desired projecting length, and is secured'in its different positions by a locking pin 203 which passes downwardly through holes'in the pipe 84 and through any one of a series of vspaced holes provided along the length of the pipeextension 202. A U-shaped strap 206 is bolted across the outer end of the" extension pipe, and projecting outwardly from this strap is a clevis 207. A brace 208 extends between this clevis and an apertured clip 209 prolength thereof to be adjusted for different inclined and vertically adjusted positions ofthe auxiliary blade. For larger adjustments than can be obtained through the turnbuckle 211, the brace comprises inner and outer telescopic pipe sections 208m and 2082) which can be held in different extended lengths by a bolt 212 passing through holes in the outer extension portion and'through any one of a spaced series of holes in the inner extension portion. An angle bar bracket 215 projects upwardly from the blade adjacent to the inner end thereof and the upper'end of Athis bracket is apertured to receive the threadedsh'ank end of a bracing strap 216. Nuts engagingkwith this shank end of the strap on opposite sides of the bracket secure the strap to the bracket. The other end of the strap has a series of holes therein for receiving a bolt 218`which passes throughj the upper or inner portion of the brace 208. The adjustable connections above described enable ,the

auxiliary blade to be positioned at different loca- 9 tions inwardly or outwardly with respect to the main deilecting blade;y to be pitched downwardly at different angles to the horizontal for differentV angles of cutting and forming a ditch or sub-grade; slope; and to be tilted along an axis lengthwise of the blade forl disposing the lower scraping edge in diiferent positions forwardly or rearwardly with respect to the upper edge of the blade. This entire auxiliary blade and its supporting connections can be readilyv removed from the rnain` deiiecting blade when not desired for use. l l In Figures 8 and 9 we have -illustratedja modi-.l fied form of apparatus forv adjusting the positions of the main deflecting blade.` This form also comprises a screw shaft 117 for raising and lowering the outer portion of the Outrigger support andv de'`. ecting blade, but in this case the rotative move-r` ment is transmitted to thescrew shaft 117 and the latter is caused to thread inwardly or outwardly through a threaded sleeve or nut 118". Pro-l jecting from the sides of said nut are trun`nion` pins 221 which engage in upwardly extending side arms of a yoke shaped bracket 223 which is secured to the outer portionof the Outrigger frame; The trunnion pins 221 engage in slots 224 in these bracket arms, whereby the nut 118 can be rocked slightly in a transverse direction between said bracket arms to accomodate any fore-and-aft shifting of the outrigger frame and deflectin blade. The upper end of the threaded shafthas a reduced end 117 which is journaled 4for'rotation in a bearing block 227. This bearing block is mounted in the outer portion of a vertically swinging bearing` yoke 228 comprising spaced side arms 228a anda transverse cross bar portion 228D' joining the outer ends of the yoke arms. :As l

shown in Figure 9, the cross bar portion 228i; has a transverse, rectangular guide slot 228e therein, and the bearing Ablock 227 is arranged for transverse slidingmovement in this slot. I ilanges 227er project from the bearing block and engage .the front and rear surfaces of the transverse bar por.` tion'228b and sustain either direction, of .end thrust imposed on the threaded shaft 117.` f

In-this giodiied censtrgetien. the threaded shaft is driven from the upper longitudinally extending Shaft .15.3 with. which the hand Wheel 159 isoperatively connected. The side arms 228,11 of the yoke have bearing hubs formed at their inner ends which are journaled for rotation on the shaft 153, whereby the yoke and threaded shaft 117 can swing around the axis of the shaft 153 in the l.raising and lowering movements of the deflecting blade. Intermediate these bearing hubs on the yoke arms., there is provided a bevel gear 2 31 which is keyed to the shaft 153. This bevel gear meshes with a companion bevel gear 232 which is keyed to a shaft 233 extending down between the yoke arms. Such shaft is journaled in a bearing huby 2280i, which is constructed in the form of a cross arm or bar extendingr between the side arms 228er. and integral therewith. A universal joint 234 and a conventional slip coupling 2.35, operatively connect the shaft 233` with the "screw -shaft extension 117, the universal joint accommodating any sidewise movement of the bearing block 227 in the lower end of the yoke, and the extensible slip coupling 235 accommodating any necessary lengthening or shortening of the coupling connection between said universal joint and shaft extension incident to the sidewise movement of the bearing block 227.

In the operation of this construction, it will be evident that when the operator rotatesV the hand wheel 159 the resulting rotation of the shaft 153 will drive through the bevel gears 231 and 232 to rotate the screw shaft 117' for either raising or lowering the deflecting blade by causing the nut 118' to travel upwardly or downwardly along said screw shaft.

In Figure 8 we have also illustrated a modified formof mechanism for raising and lowering the longitudinal beam 33. In this construction, the shaft has a worm 241 keyed thereto, which worm meshes with aworm wheel 242. The bore of-said worm wheel is threaded for` receiving the threaded shaft` 51. The worm wheel is confined top andbottom by hubs 243 through which screw shaft 51 passes; these hubs 243 may be rigidly bolted to the main frame structure, or they may be.joinedby a yoke 244 having bearing support on the shaft 75 at opposite ends of the worm 241, whereby the worm wheel, hubs and screw shaft can-.swivel slightly aroundthe axis of the shaft 75in any inward or outward adjustment of the beam 33. Thelower end of the screw shaft terminates in a-ball 52 mounted in a spherical socket defined between the two halves of a mounting block 53. The screw shaft may be held against rotation by providing a lug 54 projecting from the ball 52 and engaging in arecess 55 in the socket mounting, or the shaft may be held against rotation by providing a long slot 246 in its upper threaded portion, into which slot project keys 247 extending from the hubs 243. The mounting block53 isseoured to the beam 33 in any suitable manner, such as by means of an angle bracket,57. It will be evident that rotation yof the shaft 75. is effective to revolve-the worm wheel 242 and this causes the screw shaft 51 to be screwed either upwardly or downwardlythrough said wheel for raising or lowering the beam 33. In Figure 10 we have illustrated another modipinion meshes Withtherack teeth 254' of a long rack bar 254. The lower end of said rack bar has pivotal connection at 221' to a yoke shaped bracket 223' mounted on the outer portion of the outrigger support, this pivotal connection being similar to that illustrated in Figure 8. The rack bar is held in mesh with the spur pinion 253 by a roller 256 which bears against the outer edge of the bar, directly opposite the spur pinion. This roller is mounted in a swinging supporting structure 257, either in the form of a yoke or a pair of side straps, the inner ends of this yoke or pair of straps being pivotally mounted on the shaft 153, on opposite sides of the spur pinion 253, whereby said roller and its supporting structure can swing with the rack bar in the raising and lowering movements of the deflecting blade. The operation of this construction will be apparent from the preceding descriptions.

The rack and pinion mechanism for raising and lowering the longitudinal beam 33 is of generally similar construction and arrangement, comprising a spur pinion 261 mounted on the shaft 75 and meshing with the teeth 262 of a rack bar 262. 'I'he lower end of this rack bar is pivotally connected at 263 to a bracket 264 which is secured to the beam 33. A guide roller 265 bears against the back side of the rack bar, opposite the spur pinion 261 and is supported by a yoke structure or straps 266 which have pivotal mounting on the shaft 75, on opposite sides of the spur pinion.

In each of the modified constructions illu..- trated in Figure l0 it is desirable that locking means be provided for holding the shafts 75 and 153 against rotation after a desired adjustment has been given the defiecting blade. As diagrammatically illustrative of one such locking means, the shaft 75 is illustrated as having a notched wheel 271 secured thereto, into the notches of which is projected a spring pressed locking dog 272. For retracting said dog, when the shaft is to be rotated, there is provided a bell crank releasing lever 275 which has an upwardly extending arm adapted to bear against a shoulder or pin 276 on the springpressed dog, and which has its other arm connected with a depending link 277. The lower end of this link'is pivotally connected toV an arm 278 which is secured to a rock shaft 279. The rear end of said rock shaft has a foot treadle 281 secured thereto and located in proximity to the operators position on the platform '78. It is only necessary 'for the operator to step upon this treadle '281 when he desires to release the shaft'75 for adjusting the beam 33. A similar arrangement of locking parts may be provided for locking the shaft' 153 against rotation after each adjustment. Likewise, a similar arrangement of locking parts may be employed in conjunction with the previously described embodiments of screw threaded adjusting mechanisms and cable operated adjusting mechanism.

It will be noted that each of the above described combinations of adjusting mechanism is operative to raise or lower the entire blade with a bodily shifting or translatory motion, and is also operative to raise or lower either end of the blade for different angles of slope of the shoulder or different positions of registry of the inner end of the blade with the elevator.

In Figures 11 and 12 we have illustrated another embodiment characterized by a power driven screw which may be-employed to aid the travel of thesoil along the face ofthe deecting blade. In this embodiment we have also disclosed an adjustable 4mounting of the main deflecting blade whereby it. maybe inclined rearwardly for defleeting the soil outwardlyaway from the machine, this latter feature being capable of use either with or without the power driven feeding screw. The feeding screw is designated 286 and comprises a shaft 286 to which the convolutions ofthe screw are secured. The inner end of said shaft is journaled in a bearing 287 which is supported between straps or bars 288 extending forwardly and downwardly from points of attachment on the main defleoting blade 31. The intermediate portion of said shaft is also journaled in a similar bearing 287 which is also supported by straps or bars 288 extending from the deflecting blade. The outer section of the screw 286 terminates at the front side of the intermediate bearing 288, and the inner section of the screw starts at the rear side of said bearing. The outer end of the screw shaft is journaled in a bearing bracket 289 projecting forwardly from the outer end of the deflecting blade. A sprocket wheel 291 is secured to the outer end of said shaft, and trained over this wheel is a sprocket chain 292 which passes upwardly over a sprocket pinion 293. If desired, a guard or shield (not shown) may be arranged over this chain and pair of sprocket wheels for shielding the latter from dirt. If desired,` an enclosed bevel gear drive or spur gear drive might be substituted for this chain drive. The sprocket pinion 293 is secured to the outer end of a shaft 294 which is journaled in a relatively long bearing sleeve 295. Said bearing sleeve `295 is supported on the upper ends of two spaced arms 296, which have their lower ends secured to the back side of the main deflecting blade. A universal joint 297 connects the inner end of the shaft 294 with a driving shaft 298 which extends inwardly toward the elevating grader. Said shaft has a slip connection therein permitting extension and contraction of the shaft, such being afforded, for example, by a reduced section 293e of the shaft, having telescopic sliding motion in a sleeve portion 2981 these two parts being keyed or splined so that they are compelled to rotate together. At the inner end of the shaft 298 is a universal joint 299 which is operatively connected with a stub shaft 301. This stub shaft is journaled in a bearing bracket 302 which is attached to the forward portion of the channel beam 34. Ak second universal joint 304 connects this stub shaft 301 with a shaft 305. The latter shaft also has a slip joint therein, generally indicated at 306, generallyv similar to ,the slip joint previously described. The inner end of the shaft 305 has connection through a universal joint 307 with a shaft 39S which extends into a gear box 309. A power transmitting connection to this gear box is typically represented by the sprocket chain 311, which may derive power either from the power plant 24 mounted directly on the elevating grader, or from the tractor or other pulling vehicle through a power take-off attachment, such as has been fully described in the aforementioned co-pending application of James B. Green and John M. Rathmell. Within the gear box 309 is any conventional controllable driving mechanism, by which transmission of power to the feeding screw 286 can be started and stopped, and by which the feeding screw can be driven in either direction of rotation. The lever 312 represents a typical control for starting and stopping or reversing the direction of drive. If desired, selective speed mechanism can also be embodied in the gear box 309 for driving the screw 286 at different speeds, in either direction.

' The provision of the feeding screw 286 accelerates the movement ofthe soil inwardly along the face of the deflectingblade and enables a greater yvolume of soil to be handled. Furthermore, by the provision ofthis feed screw, the deflecting blade 31 can be inclined outwardly at a more oblique angle, i. e., more nearly approaching a right angle to the elevating grader, so as to enable the blade to span a wide shoulder width. Without this feeding screw, if the deflecting blade isv not given suflicient forward inclination, there is a tendency for the soil to pile up in front of the blade at a faster rate than it is fed inwardly along the blade. lThe universal joints 297, 299, 304 and 307, together with the associated slip connections, accommodate the vertical movements ofthe deecting blade and Outrigger assembly, when the latter are raised or lowered for different adjustments, and when they are swung upwardly 317. As best shown in Figure 11, each of these pivot connections 316 and 317 preferably consists of a cooperating series of apertured lugs or ears extending from the pipe and from the beam and receiving a pivot pin passing therethrough. A like pivotal connection 318 connects the outer portions of the front and rear pipes 84 and 85. One set of the apertured ears of this pivot 318 is secured to the outer end of the rear pipe 85 and the other set of apertured ears is secured to a collar 321 which is made fast to a tube 322. The tube 322 has sliding telescopic mounting in the front pipe 84. A pin or key element 323 is mounted in a hole in the pipe 84 and is receivable in different holes 324 along the length of the inner tube 322. It will be evident that the angular po-A sition of the Outrigger pipes and of the deilecting beam 31 can hence be adjusted by sliding the tube 322 inwardly or outwardly in the front pipe 84. For different forwardly extending angles of the defiecting blade, the tube 322 is adjusted inwardly to different positions within the pipe 84, and for diiferent rearwardly extending angles, the tube 322 is extended outwardly to different adjusted positions, substantially as illustrated in dotted lines in Figure 12. Any one of these an-` gular adjustments can be fixedly maintained by locking the tube 322 and pipe 84 together through theinstrumentality of the locking pin 323. Where the feeding screw 286 is associated with the deiiecting blade, as shown, the universal joints 297 and 299 accommodate the change in angularity of the shaft 298 with the different angular adjustments of the deiiecting blade. Of course, this fore and aft adjustability of the deiiecting blade may be embodied in the previously described construction without the feeding screw 286.

When the deflecting blade is adjusted to a rearwardly extending angle, as indicated in dot'- ted lines, it can be employed for leveling the shoulder or for discharging excess soil outwardly over the outer edge of the shoulder. When the feeding screw is embodied in the construction, the screw would preferably be driven in a reverse direction for this adjustment of the blade, wherev by the screw would assist in conveying the soil outwardly along the face of the blade.

When the auxiliary deilecting blade 181 is employed with this construction, the extension tube 262, which has operative connection with this auxiliary blade, may be arranged for sliding movement within the tube 322. The tube 202 can be locked in different extended positions by a pin 203 passing through the intermediate tube 322, substantially as previously described. In the illustrated construction, the strap or attaching member 194 at the inner end of the auxiliary blade is illustrated as having a ball and socket attachment to the vangle bar 91 of the main blade. This universal joint comprises a substantially spherical socket member 195 which is mounted over an upper ball extremity 196 of a stud bolt which can be positioned in any of the `series of holes 19S located in the angle bar 91.

Any of the previously described adjusting mechanisms may be employed for raising and lowering the beams 33 and 34, and for raising and lowering the outrigger assembly the mechanism 116 of Figures 1 5, or the cable operated lifting arrangement 151, may be employed. Figure 12 illustrates a slightly modilied construction designed for using the cable arrangement, .such comprising a rearwardly extending tubular arm 328 projecting from the rear pipe 85. This extension arm provides a second point of attachment for a second sheave 152', whereby lifting forces transmitted through the cable are applied to the outrigger assembly at longitudinally spaced points.

In Figures 13 and 14 we have illustrated the machine as provided with a supplementary deecting member in the form of a drag blade 331 which is pulled behind the machine. This blade preferably consists of a length of angle bar. or other stock section, having two forwardly eX- tending members 332 secured thereto. As shown in Figure le, these members 332 preferably consist of short lengths of angle iron which are welded or riveted to the top iiange of the blade, and which have downwardly curved forward ends serving as runners for holding the blade against tilting. Apertures 333 in the front ends of these runners or arms have chains 334 linked thereto. The outer chain can be linked to the outer end of the front Outrigger pipe 811 and the inner chain can be linked to the rear end of the grader frame. The blade is preferably disposed at an outwardly and rearwardly extending angle, with its inner end overlying the concrete slab, approximately as illustrated in Figure 13. In this relation, it

` functions to clean off the concrete, delecting ou1xwardly therefrom any soil which may have been spilled from the inner end of the main deflecting blade 3l or from the elevator. Furthermore, it picks up and drags a sufficient accumulation of soil to fill in any low spots in the top surface of the shoulder or berm. Thus a clean concrete surface is obtained, and also a uniform, smooth shoulder.

While we have illustrated and described what we regard to be the preferred embodiments of our invention, nevertheless it will be understood that such are merely exemplary and that numerous modifications and rearrangements may be made therein without departing from the essence of the invention. As illustrative of certain possible arrangements, it will be understood that our improved machine might alternatively incorporate any one of the adjusting mechanisms for tilting the Outrigger frame illustrated in Figures 6, 8, and 10, and might alternatively incorporate any one of the different mechanisms for raising or lowering the beam 33 illustrated in Figures 5, 8 and 10. Also, by providing a folding joint 166 the screw shaft 117 of Figure 8, or in the rack bar 254 of Figure 10, the cable operated lifting mechanism 151-159 might be employed with these latter constructions. illustrative of another arrangement within the purview of our invention, the cable operated lifting mechanism lol-459; might be employed without any other means of liitin T the outer end of the deflecting blade, and a sti leg connection., in which is incorporated a turnbuckle, could be used to raise and lower the beam 33. Any of these adjusting mechanisms might be arranged for power actu ation, deriving power from the power plant 2e or from a power take-off attachment extending from the tractor. The entire machine might be self-'propelled instead of being drawn by a tractor, and the elevator mechanism might be arranged to discharge at the .iront end or at the rear end of the machine instead of off to the side, and this elevator mechanism might be of the screw type or of the bucket type.

We claim:-

1. In a machine of the class described, the combination with a wheeled frame and an elevator supported thereon, of an Outrigger support projecting laterally from said frame, a deflecting blade carried by said Outrigger support, both the Outrigger support and said defiecting blade being disposed substantially entirely to one side of said wheeled frame, said blade operating to deect material inwardly to said elevator, mechanism carried at one side of said wheeled frame for vertically adjusting the inner portion of said Outrigger support and blade, and mechanism for vertically adjusting the outer portion of said outrigger support and blade.

2. In a machine of the class described, the A combination with a wheeled frame and an elevator supported thereon, of an Outrigger support projecting laterally from said frame and disposed substantially entirely to one side thereof, a deecting blade carried by said outwardly projectingoutrigger support and also disposed substantially entirely to one side of said wheeled frame, said blade operating to deilect material inwardly to said elevator, mechanism for vertically adjusting thek inner portion of said outrigger support and blade independently of said elevator, mechanism for vertically adjusting the outer porticn of said Outrigger support and blade, and means for actuating either of said adjusting mechanisms while the machine is in motion.

3.111 a machine of the class described, the combination with a wheeled frame and an elevator supported thereon, of a sub-frame carried underneath said wheeled frame and including portions disposed on opposite sides of the elevator, an Outrigger support projecting laterally outwardly from said sub-frame, a deecting blade carried by said Outrigger support and operating to deiiect material inwardly to said elevator, means supporting said sub-frame for lateral movement relative to the wheeled frame, thereby enabling the Outrigger support to be adjusted transversely relatively to said wheeled frame, and adjusting mechanism for raising or lowering said Outrigger support and blade relative to said subframe.

4. In a machine of the class described, the, combination with a wheeled frame and an elevator supported thereon, of an Outrigger support projecting laterally from4 said frame, supporting -means to which said Outrigger support tween the inner and outer ends of said blade rela- V is pivoted on a substantially lengthwise pivot axis, means coacting with said supporting means for holding the latter in different laterally shifted positions whereby said Outrigger support can be adjusted transversely with respect to said wheeled frame, mechanism for raising or lowering the pivotal axis between said outrigger support and said supporting means, and mechanism for raising and lowering the outer portion of said outrigger support.

5. In a machine of the class described, the combination with a wheeled frame and an elevator supported thereon, of a supporting member carried on said frame, means for vertically adjusting said supporting member, a deflecting blade projecting laterally from said frame and operating to deflect material inwardly to said elevator, means pivotally supporting the inner portion of said deflecting blade on said supporting member, and means for vertically adjusting the outer portion of said blade. l I

6. In a machine of the class described, the combination with a wheeled frame and elevator apparatus supported thereon, of an Outrigger support projecting substantially entirely from one side of said frame, a deflecting blade carried by said Outrigger support, projecting laterally from said frame and operating to deflect material inwardly to said elevator, means pivotally connectingthe inner end of said Outrigger support with said wheeled frame adjacent the receiving end of said elevator, and means for raising and lowering the outer end of said Outrigger support for vertically adjusting the outer portion of said blade without materially changing the relation between the inner portion of the blade and the receivingv end of said elevator apparatus.

7. In a machine of therclass described, the combination with a wheeled frame and elevator apparatus-supported thereon comprising a conveyor belt traveling in a path extending across substantially the entire width of said frame and having its receiving end adjacent to one side of said frame, of a deflecting blade supported on said frame-on a pivot axis extending longitudinally of said frame and disposed adjacent to the latter side thereof, said blade projecting outwardly from the latter side of said frame and operating to deflect material inwardly to the receiving end of said elevator apparatus, andmeans for adjusting the outer end of said blade substantially vertically aroimd said pivot axis. y j

8. In a machine of the class described, the combination with a wheeled frame and an elevator supported thereon having a receiving end adjacent one side of said frame, of a deflecting blade projecting laterally outwardly fromsaid one side of said frame and operating to deflect material inwardly to said elevator, means establishing `a pivot axis for the inner end of said blade adjacent saidone side of the wheeled frame, means for swinging the outer portion of said blade about said axis, and means for adjusting the vertical position ofthe pivot axis, said blade enabling the latter to be raised and lowered bodily.

9.*In a 4machine of the class described, the combination with a wheeled frame andan elevator supported thereon, of a deiiecting blade projecting laterally from said frame and operating to deflect material inwardly to said elevator, mechanism for shifting the entire blade foreand-aft relatively to said frame, and mechanism for effecting relative vertical adjustment betively to said frame. L n Y 10. In a machine of the class described;` the combination of a wheeled frame and an elevator supported thereon, of a laterally-projecting deflecting blade disposed substantially entirelyto l one side of said frame and operating to deflect material inwardly to said elevator, an Outrigger support connected at its inner end with kthe wheeled frame at one sidethereof and extending Outrigger support for vertically adjusting the outer ends of said support and said blade.

11. In a machine of the class described, the combination with a wheeled frame and an elevator supported thereon, of a deflecting blade projecting laterally from said frame and operating to deflect material inwardly to said elevator, an auxiliary blade projecting from the outer portion of said first named bladev and operating to deflect material outwardly away from said frame, and mechanism for vertically adjusting said blades. v

12. In a machine of the class described, the combination with a wheeled frame andan elevator supported thereon Vand having a vreceiving end disposed adjacent one side thereof,of a defleeting blade projecting laterally from said one side of the frame, supporting means for said blade enabling the latter to be adjusted to a forwardlypextendingangle for deflecting material inwardly to ,saidI elevator, and to a rearwardly extending angle fordeiiecting material outwardly away from said frame, and mechanism for vertically adjusting said blade comprising a cable operatively connected between said supporting means and said frame, and means for winding up or paying out said cable to raise or lower the outer end of said blade, said supporting means and said mechanism being arranged to maintain the inner end of said `blade adjacent the receiving end of said elevator in all adjusted positions of the blade.

13. In a machine of the class described, the combination with a wheeled frame andan elevator supported thereon, of` Va mainV deecting blade projecting laterally from said frame and operative to deflect material inwardly to said elevator, and a supplementary deflecting blade disposed in rear thereof and inclined fore-and-aft in a rdirection to deflect soilV outwardly away from said frame. p v y 14. In a shoulder forming attachment for grading machines, the rcombination vwith a grader comprising a wheeled frame, an elevator supported thereon and extending across said frame from the soil receiving side of the frame to and beyond the soil-,delivery side thereof, transverse supporting members pivotally mounted on` said frame on pivots disposed adjacent to the soil de livery side of said frame, anda beam carried byv said transverse supporting members and extending substantially longitudinally of saidframe adjacent to the soil receiving side thereof, of a second beam extendingfsubstantially parallel to said first named beam, hinge devices connecting said beams enabling said second beam to be titled relatively to said first named beam about a substantially longitudinal axis, an :Outrigger struc-1 75k ture connected-to said second beam and projecting outwardly therefrom, a deecting blade carried by said Outrigger structure and projecting laterally from said frame, said deflecting blade being operable to deflect soil inwardly to the re- .ceiving end of said elevator, and means Operatively connected between said frame and the outer portion of said Outrigger structure for raising and lowering the outer ends of said Outrigger structure and of said blade.

15. In a shoulder forming attachment for grading machines, the combination with a grader comprising a vwheeled frame, an elevator supported thereon and extending across said frame from the'soil receiving* side of the frame to and beyond the soil delivery side thereof, transverse supporting members pivotally mounted on said frame on pivots disposed adjacent to the soil delivery side of said frame, and a beam carried by said transverse supporting members and extending substantially longitudinally Of said frame adjacent to the soil receiving side thereof, of a second beam extending substantially parallel to said first named beam, hinge devices connecting said beams enabling said second beamto be tilted relatively to said first named beam about a substantially longitudinal axis, an Outrigger structure connected to said second beam and projecting outwardly therefrom, a deflecting blade carried by said Outrigger structure and projecting laterally from said frame, said deiiecting blade being operable to deect soil inwardly to the receiving end Of said elevator, a screw conveyor extending along the front side of said deflecting blade, means for driving said screw conveyor, means operatively connected between said frame and said beams for raising and lowering said beams, and means operatively connected between said frame and the outer portion of said Outrigger structure for raising and lowering the outer end of said deflecting blade and said screw conveyor.

16. In a shoulder forming A attachment for grading machines, the combination with -a grader comprising a wheeled frame, an elevator supported thereon and extending across said frame from the soil receiving side of the frame to and beyond the soil delivery side thereof, transverse supporting members pivotally mounted on said frame on pivots disposed adjacent to the soil delivery side of said frame, and a beam carried by said transverse supporting members and extending substantially longitudinally of said frame adjacent to the soil receiving side thereof, of a second beam extending substantially parallel to said first named beam, hinge devices connecting said beams enabling said second beam to be tilted relatively to said first named beam about a substantially longitudinal axis, an Outrigger structure connected to said second beam and projecting outwardly therefrom, a deflecting 'blade carried byA said Outrigger structure and projecting laterally from said frame, said deflecting blade being operable to deflect soil inwardly to the receiving end of said elevator, a screw conveyor extending along the frontA side of said deflecting blade, means for driving said screw conveyor comprising power transmission mechanism Operatively connected to transmit power to said conveyor through the Outer end thereof, and means operatively connected between said frame and the outer portion of said Outrigger structure for raising and lowering the outer end of said outrigger structure and the outer end of said blade.

17. In a shoulder forming attachment for gradingr machines, the 'combination with a grader comprising a wheeled frame, an elevator supported thereon and extending across said frame from the soil receiving side of the frame to and beyond the soil delivery side thereof, transverse supporting members pivotally mounted on said frame on pivots disposed adjacent to the soil delivery side of said frame, and a beam carried by said transverse supporting members and extending substantially longitudinally of said frame adjacent to the soil receiving side thereof, of a second beam extending substantially parallel to said first named beam, hinge devices connecting said beams enabling said second beam'to be tilted relatively to said first named beam about a substantially longitudinal axis, an Outrigger structure connected to said second beam and projecting outwardly therefrom, a deflecting blade carried by said Outrigger structure and projecting laterally from said frame, said deiiecting blade being operable to deiiect soil inwardly to the receiving end of said elevator, means connecting said Outrigger structure with said second beam enabling said Outrigger structure to be positioned at different fore-and-aft angles relatively to said beam, whereby said blade may be inclined rearwardly to deflect soil outwardly away from said frame, and means operatively connected between said frame and the outer portion Of said Outrigger structure for raising and lowering the outer end Of said beam.

18. In a shoulder forming attachment for grading machines, the combination with a grader comprising a wheeled frame, an elevator supported thereon and extending across said frame from the soil receiving side of the frame to and beyond the soil delivery side thereof, transverse supporting members pivotally Vmounted on said frame on pivots disposed adjacent to the soil delivery side Of said frame, and a beam carried by said transverse supporting members and extending substantially longitudinally of said frame adjacent to the soil receiving side thereof, of a second beam extending substantially parallel to said rst named beam, hinge devices connecting said beams enabling said second beam to be tilted relatively to said first named beam about a substantially longitudinal axis, an Outrigger structure connected to said second beam and projecting outwardly therefrom, a deflecting blade carried by said Outrigger structure and projecting laterally from said frame, said deecting blade being operable to deiiect soil inwardly to the receiving end of said elevator, means operatively connecting said deflecting blade with said outrigger structure enabling said blade to be adjusted relatively to said Outrigger structure, and means operatively connected between said frame and the outer portion of said Outrigger structure for raising and lowering the Outer end of said beam.

19. In a machine of the class described, the combination with a wheeled frame and an elevator supported thereon, of means serving as a sub-frame movably carried by the wheeled frame, an Outrigger support projecting laterally outwardly from said sub-frame and capable of movement with respect thereto, a deiiecting blade oarried by said Outrigger support and Operating to deflect material inwardlytoward said elevator, means for adjusting said sub-frame transversely relatively to said Wheeled frame to secure a transverse adjustment of said Outrigger support and the blade carried thereby, and adjusting mechanism reacting against said wheeled frame and connected with theA laterally outer end of said Outrigger support for raising Or lowering the blade.

20. In a machine of the class described, a Wheeled frame, elevator apparatus supported thereby and having a receiving end at one side of said frame and extending laterally from the other side thereof, a sub-frame carried by said wheeled frame including portions movably connected with the wheeled frame adjacent the side from which said elevator apparatus extends and including a generally longitudinal beam disposed adjacent the receiving end of said elevator apparatus, an Outrigger support projecting substantially entirely from the side Of said frame adjacent which the receiving end of the elevator apparatus is disposed, means pivotally connecting the inner end of said Outrigger support with said generally longitudinal beam of the subframe, a deecting blade carried by said outrigger support and arranged with its inner end adjacent the receiving end of said elevator apparatus and the longitudinal beam of the subframe, a deecting blade carried by said Outrigger support and arranged with its inner end adjacent the receiving end of `said elevator apparatus and the longitudinal beamto which said Outrigger support is pivotally connected, and means for raising and lowering said Outrigger support relative tO the sub-frame for adjusting the vertical position of said blade.

JAMES B. GREEN JOSEPH E. HUBER.

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