US1996676A - Grader-planer - Google Patents

Description

April 2, `1935. F. M. HARGRAVE GRADER PLANER Filed May l2, 1934 2 Sheets-Sheet l April 2, 1935. F. M, HARGRAVE GRADER PLANER :a sheets-sheet 2 Filed May l2, 1934 67 ggg glu/uc nto/o Fred MHaryra/e lil Patented Apr. 2, 1935 UNITED STATES 1s Clarins; z

amanner as hereinafer set forth a grader-planerv for completely smoothing vthe types of pavements as aforesaid without extra andexpensive equipmentand at a; minimum cost; for scarifying of low cost roads and oiledv dirt'roads and streets; for cutting up large chunks after a surface has been torn up by a scarierg f or cutting oilballs in oil mixed gravel work; `for mixing re-tread Work or oilgravel oroil sand mixed work; for drying gravel and stone before application of bitumen; for mixing or turning over oil or tar and gravel when following a distributer; Yfor smoothing'previously treated or untreated surfaces before the next-treatment thereof; foriurnishing a low cost original purchase machine which may be attached to any grader or motor patrol as an attachment thereby utilizing available equipment; for planing and smoothing all types of bituminous pavements including low cost re-tread roads, oil vmixed gravel and sand roads and Voil treated dirt roads without additional expensive equipment and at a minimum operating expense; for maintaining lcorrugated gravel roads; kfor cutting sodon grassy road shoulders; for disking earth fills in grading work; for disking vand smoothing a subgrade ahead of pavers; for diskingA long swales out cfa gravel or dirt road; and toattain these ends by a strong, durable, adjustable, low cost grader-planer for low cost construction and maintenance 4and which may be coupled to any form of grader or motor patrol as an attachment.

To-the above ends essentially, and to others which may hereinafter appear, the inventionconsists of such parts, and in such combination-of parts which fall Within the scope of the invention as claimed.

In the drawings: t Figure 1 is a top plan-view partly in section of the graderplarier,l l Y 1 Figure 2 is a perspective view of the-form` of cutting disc, Figure 3 is a perspective'of the for the cutting discs, y c

f Figure 4 is a perspective view of the form ofdisc cleaning member,

Figure 5 is a perspective View of the `form of spacer for the cleaning members,

Figure 6 is a perspective view of the form of stiiener employed for a bolt or pin,

form of separator Figure 7 is an elevation of vthe. grader planer looking .towards one vend thereof and coupledto an adjusting element therefor, l

Figure 8 is a section on line 8 8, Figure 1.

The graderplaner includes a combined supporting and coupling structure I, a rotatable shaft 2 supported from thelatter, a series of spaced cutting discs 3 mounted onrand bodily moving with shaft 2a stationary cleaner device 4 for the discs A3, a series of separators 5 mounted on the shaft 2V for .the discs 3, an adjustable thrust bear-- ing f3` for the. shaft 2, vand a pair of adjustable combined disc binders or tighteners and Vshaft bearing elements 1. A Y

The structure 'Ig Whichis in the form of a horizontally disposed yokezopen atits rear, includes `a non-rotatable beam lief, H-shaped contour in cross section formed, of a horizontally disposed at web 9, a pair of vertical parallel anges Iil, I I, two spaced upstanding aperturedwebs I2, I3, two spacedpairs of spaced oppositely disposed angle irons Ill, I5, a pair of spaced parallel horizontally disposed hangers Ii:' I'I,r a pair vof adjustable coupling devices I8, I9, apair of spaced sets of combined stiienersand spacers 20, 2|, a pairY of spaced sets of combinedzstifeners and spacers 22,- 23, a pair of upstanding spaced parallellwebs 24, k25 and a pair of upstanding end closure -webs 26, 21. Y

The opposed Afaces of the flanges I0, II centrally thereofA areintegral withthe sides of web 9. The latter and the vanges are of the same length. Preferably the Width of web 9 will be greater than the height ofthe flanges andis so shown. vThe websV I 2, I 3 are of like form and apertured in prox- PATENT-jorrit: E;

imitytoflange Il). The pair of webs `i2 are arranged inparallel spaced relation and disposedbe.- tween thetransversemedian and one end of beam 8. The `pair of Webs- I3 are arranged in parallel spaced .relation and disposed between the transverse medianl and the other end of beam 8. Each of the webs I2, .I3 (Figure 8) is formed'of a rectangular lowerportion 28 andan upper portion 2S in Athe form` of a right angleV triangle. The top edge of portion 29 extends at an upwardinclination from ange ILD to ange I I. 'I'he lower portion 28 is arranged between and integral with the flanges I D, I I, as wellas being integral with the upper faceof web 9. The portion 29 is positioned above the flanges Il), II and is formed in t proximity to its upper corner with an opening 36. The openings 30 in thek webs I2 and I3 Valignbvvith each other. The two pairs of angle irons' Id, I5 are positioned against and extend forwardly from the forward face of flange II. The pair-of irons vthe innerends ofthe legs 3| ofY the pair.

I4 are arrangedbetween the transverse median and one end and the pair of ironsl5 between the transverse median and the other end of the beam 8. 'Ihe angle'irons I4, |5 are'of like form and each includes a leg 3| arranged in alignment with a Web|2 or I3r and ra leg 32 which detachably connected to flange I I by holdfast means 33. The legs 3| of leach pair of irons arerarranged in parallel spaced relation, of :triangular contour and formed atftheir outer ends with openins 34. The legs 32 of each pair `pf irons are square. The angle irons |4, I5V are spaced from the top and bottom edges of flange The legs 32 of each pair of angle irons extend in opposite Vdirecticlms with respect to each other and at right ,angles to The hangers I6, I1 are of like construction but oppositely disposed with respect to each otherj`and each includes an arm`35 anged at itsV innerv end, as at136, for the passage of holdfast means face at the ange I at an end of the'latter. The arm 35 isdisposed at right angles to flange |11. The outer end of arm 35 is formed with a cylindrical enlargement 38y provided with a circular socket39 'opening at the'inner side-of the arm. The enlargement 38 at its outer Vend is provided with anl opening 4|! communicating with the inner end of socket 39. The wall of opening 46 `is threaded. The adjustable Icoupling devices 18, I9

, peripherally threaded throughout.

The number of cuttingv discs 3 may be as desired are of like construction and the 'description rof one will'apply to the other. Each coupling device is formed of a pivotally mounted section 4| provided with a lengthwise extending" socket-42 having ja threaded wall and an adjustable'sectionw vin the form of an eye-bolt having' threaded engagement with the wall of Asocket 42; z 'I'he latter opens at'the outer 'end of section 4|. The inner end of section 4|, adjacent the 'base of socket 42- is provided with an opening '44 for the passage of a headedy pivot bolt 45. 'The bolt '45 of device I8 extends through theopen-ings of the webs I 2. The bolt 45 `of device. I 9 extends throughv the openings of the webs I3. Holdfast means ismounted on the non-headed end of `a'bolt 45 and abuts the outer face of a web |2-'or I3.' 'The head V4'I raf a bolt 45 'abutsthe outer face-cf a'web I2 or I3. f The section 4| is mounted 'on a -bolt 45 at the 'center thereof and is maintained inV such position by 'a set of combined spacers and stiieners 2 6 or 2| and Veach of the latter consists of a' triangular shaped body 48 (Figure `r6) formed with an open-V ing 49 for the passage of, the shank Vof a bolt 45. The vcombined spacers and stiifeners of ja set 2U or 2| are arranged between thesection 4| ofV a coupling device andabut the inner faces of the pair of webs'l 2 or the pair of webs i3. V'I'he spacersyand stiifeners of a set may be adjusted so'as to maintain the section 4| of a coupling device at different positions on, bolt 45.V Mounted-in the aligning openings '34 of the legsv 3| Aof the pair Aof irons I4 is a headed bolt '50 for the ylowerendzof a hanger to be referred to. Mounted in the aligning openings 34 ofthe legs ofthe'pair of irons l5 is .a headed bolts forthe lower end kof a hanger to be referred to. The combined spacersand stillen-ers .22 are'mounted on the bolt 50 vand abut the flange Il. 'The combined spacers and stiffeners 23 are mounted on f' the Vbolt `5| and abut the fiange II.v The combined spacers 'and-stillen; ers 22 are positioned betweenthe hanger mounted on bolt 5|!and the inner faces of the legs 3| of the pair of 'irons I4. i The combined spacers and stiff# Y enersf 2'3 are positioned between the hanger 75v mounted on bolt 5| .and the innerffaces of the legs 3| of the pair of irons I5. Each combined spacer and stiffener 22 or 23 is in the form'of a triangular shaped body 52 (Figure 8) formed with an opening 53 for the passage of a bolt 50 or 5|.

-Preferably the stiffeners 22 or 23 will ce of thicker stock than the stiffeners 20 or 2|. The combined stiffeners and spacers 26 and 2| prevent the sections 4| of the coupling devices shifting lengthwise of the bolts 45. The combined stiffenvers and spacers 22 and 23 prevent the shifting of the hangers, which are mounted on the bolts 50, 5| lengthwise of the latter. Holdfast means 54 'for the bolts 59, 5| are carried thereby and which abut the legs of one of the angle irons of each part. The webs 24, 25 are arranged in proximity to thelends of beam 8 and are interposed between the .flanges I 5, as well as being integral with the latter and theupper face of web'9. The webs 21|,V 25 are disposed transversely of web 6 and flush with the top edges of flanges I0, I ,The webs 25, 2I are at the ends ycf beam 8; of the same height as flanges I0, Il and are integral with the ends of web!) and the ends of flanges I0,

Th'eshaft `2 is of a length to extend from within the hanger I6' to and within hanger and is Vformed of an intermediate portion 55 -of any suitable contour, other than circular and is shown square; The shaft 2 is formed with a pair 'of end portions 56 of circular cross section. Onlyone end'portion 56 is shown. The end portions are and are of like form.. Y Each' disc 3 consists of a circular body part 5'|v of concave-convex cross section formed with an endless cutting edge 58 andan axially arranged opening 59V correspond--V ing in contour toY that 'o'f the intermediate portion 55 of shaft 2. in spaced relation'upon shaft 2 between the end portions 56 ofthe latter and bodily move with the shaft. j Y e The stationary cleaner device r4 for the discs 3 consists of a pair of spaced parallel angleshaped'bracketsV 66, each formed of a horizontal leg 6| and an upstanding and rearwardly in clinedlegBZ extended above leg 6| and provided in proximity .to its upper end with an opening 63. The lower end of leg 52 is integral with one side of leg 6|. The latter is anchored to the outerface of llange I0 adjacent one end of said flange by the hold-fast means '64. The leg 62 extends above and inclines` rearwardly from flange IB. Extending through the openings 63 in the legs 62'v is a squared' non-rotatable rod `65 upon which is mounted the rectangular inner stretches 66 of a series of spaced cleaner members 51. YThese latter also 'include tapered outer stretches 68 which are inclined laterally with respect to the outer ends of stretches 66 to be disposed in opposed closed'relation to the upper portions of the convex faces 'of the Adiscs '3.7 The cleaner membersS'I extend rearwardly and downwardly at an inclination with respect to rodV 65. The stretches '66 are formed with openings 38' corresponding in contour. to and for the pa'ssage'o rod 65, whereby 'the members 61 are held sta tionary on said rod. The members 61 `are *main` tai-nedin spaced relation relative to each other upon rod 65 by tubular spacing sleeves 59 interposed between the stretches 66. The stretches 66 of the outer cleaner members 69 are arranged in abutting relation with the inner faces of legs 62 of the brackets 60. One end of the rod 65 is provided with means, as at ||l to abut the'outer face of a leg 62 of one of the brackets 63. The

The discs 53 are mountedv rod 85 extends beyond the outer-facev of the rleg 62 of the other of the brackets 50 and'carries a tubular sleeve 1| whichat' one end'abuts the outer face of said leg. Mounted ony rod'85 andA abutting the other end of sleeve 1| Vis an vabutment disc 12, which is engaged by the-combined clamping and adjusting-nuts 13, threadedly engaging with that end of rod 65 carrying the sleeve 1|. This arrangement secures the rod 55 to the brackets and maintains the sleeves 69 in' binding engagement with the cleaner members 61.

Each of the separators Sconsists of an annular body part 14 having arranged therein adjacent the ends thereof a web 15 formedwith an axial opening 16 of a diameter to clear the intermediate-portion 55 ofshaft 2. The web 15is circular and integral with the inner face of body part 14. The

face of one disc and the convex face of an adjacent disc.

The adjustable thrust bearing 6 for theishaft 2 is arranged in the socket 3!V of the hanger l and it consists of a bearing element 11', a shiftable disc 18 abutting element 11 and an adjusting screw 19 for thel disc 18. The screwA 19 has threaded engagement with the wall of opening 44 in the enlargement 38 of hanger I6.

The elements 1 are mounted in and extend inwardly from the sockets 39. 'Ihe elements 1 are of like construction, but oppositely. disposed with respectto each other. Each element 1 consists of a tubular member 80, formed at one inner end y with a laterally extending annular flange 8| provided with socketsi82 in its edge. Thebore 83 of member is threaded for engagement with the threads on an end portion 56 of vthe shaft 2.

Positioned uponv the intermediate portion-55 of the shaft 2 is a pair of spaced ` slidable abutment members 84, 85, the former having a convex'inner face and the latter a concave outer face.y Each of the abutment members is formed with an axial opening 86 of a diameter to clear the intermediate portion 55 of shaft 2. f The inner face of member 84 abuts the concave face of one outer disc 3 and the inner face of `member 85 abuts the convex face of the other outer disc 3. The members 84, 85 have their other faces abut elements 1.

The elements 1 after adjustment are keyed, as at 81, to the end portions 56 of the shaft 2 to prevent the revolving thereof upon v.the latter. The sockets 82 in the flanges 8| are provided to selectively receive a tool or other instrument (not shown) for the purpose of adjusting said elements 1 lengthwise of shaft 2 for the purpose of binding the discs, separators and members 84,85 together upon shaft 2. The opening 40 in the enlargement 38 of hanger |1 isv closed by a plug 88. The enlargements 38 have oil lubricant supply fittings 89 opening into the sockets 39. K

It is well known that motor patrols or traction devices which carry adjustable moldboards, graders or other road working devices are provided with what are termed horizontally disposed rings adjustable by revolving them in a horizontal path for the purpose of adjusting the moldboard, graders, etc., to position them at different angles While road making. lThe ring'or annulus `has depending therefrom apair of hangers which are .coupled to the moldboard, grader, etc., Vto provide traction for and the '.bodily. adjusting` of.

the 4moldboard, Agrader by theV ringi,V The construction and arrangement of the. grader-planer in accordance with this invention enables itV to be quickly installed with a motor patrol or traction device on the removal of the moldboard or planer.Vr WithY reference to"Figure 'I theA ring orV annulus referred to is shown and indicated at 80. Depending from the ring 90 is a'pair of hangers 9|, only one of which 'is shown. 'I'he hangers 9| have openings neartheir upper ends andi openings at-.their lower end. The hangers 9|v when used in connection 'with thisinvention extend between angle irons of the-two pairs of angle irons I4, l5. Thebolts 50, 5| extendthrough 93 of bolts 43 of the couplingV devices I8, |9 and the up'perfopeningsv inV hangers 9|.Y The coupling devices 8, I9` also' provide for adjusting the discs 3 whereby they may besunk into the surface the desired depth depending upon the type f j of surfaces Vbeing worked. Y Y Among the advantages attained bya Ygraderplaner in accordance with this invention are that it costs at least 50% less than any other. machine capable of doing the same work; may be mounted on anygrader or Vmotor patrol in approximately thirty minutes by removing the mold board and fastening the `disc-planer inthe same hangers;

no trailertype planerto haul around; lnolost motion; no-extrai machine to pull the planer,

unless mounted on a pull type grader; no extrav man needed to operate the machine as the grader or patrol operator does the Work; nor tires or trailer parts to `Wear out; the discsmay be swung in any direction lto operate at any pitch, the same as a patrol-or grader blade, as experience will tell' just what angle to swing the disks for the best results for classof work to-be done; as great `a cutting pressure can be placed on the disks as on a grader blade, or approximately 9,000 pounds and bodily movable with the` shaft, `one-piece separators interposed between said discs and each having concave and convex ends abutting a pair of opposed discs, each of said separators being formed with an internal axially apertured web adjacent its ends for the passage of said shaft, a pair of abutment members mounted upon the shaft and` one having a concave face for abutting the convex face'of one of the outer discsof said series and the other having aconvexrface for abutting the cancave face of the other outer disc of the series, a pairof adjustable combineddisc binders and bearing elements for the `shaft adjustably engaging with the ends of the-latterand bearing against theother'facesofsaid members,

means coacting-with said elements and shaft to prevent the revolving of .the former upon vthe latter when said elements are in adjusted posi-A tion, and a combined supporting and coupling v shaft and one having a concave face forabutting the convex face of one of the outer discs of said series and the other-having a. convex face4 for` abutting the concave face Vof the other outerdisc of the series,-apairof adjustablecombined disc' binders and bearing 1elementsfor the 'shaft ad-V justably engagingwith the ends of the latter and bearing against the other faces of said members,

means coacting with said elementsV and shaft to preventthe revolving of the former `upon the latter when said elements are inadjusted position, and a .combined supporting 4and coupling structure, said elements beingV revolubly-mounted in said structure, andfsaid structure provided tol With means having provisions for coupling it to a'traction and adjusting means therefor.

3. A grader planer comprising ashaft, va series of spaced concavo-convex Adiscs mounted Aupon and bodily movable with. the shaft, vone-,piece separators interposed betvveenA said discs and eachV having concave and'convex ends abutting a pair of opposed discs,l yeach 'of said separators being formedxwith an internal axially apertured web adjacentk its ends forrthe passage cf said shaft, a pair lof abutment members .mounted upon the shaft and one having a concave .face for abutting the convex faceof one lof the outer discs of said series land the other having aconvex facegfcr abutting the concave face ofthe other router disc of the series, a pair of adjustable combined disc binders and bearing elements for the shaftfad.-v

justably engaging VWith the ends of the latter and bearing against the other faces of said members; means coacting with -said elements rand shaft to prevent the revolving ofthe former upon the, latter when said elements arecin adjusted position, a combined supporting and coupling structure, said elements Abeing revolubly mounted vin said structure, and said structure provided with means having provisions for coupling `it to a traction'and adjusting means therefor, and' athrust bearing for one end of said shaft and one end of that ele-A ,end of the said element.

ment carried by said end of said shaft, said thrust bearing being. adjustable andpositioned within said structure in abutting relation to.V the said 4. A grader planer. comprising a shaft, a series of spaced' concave-convex discs jmounted upon and bodily movable with the shaft, one-piece separators interposedfbetween .said dises and each having concave vand convex ends abutting .a pair of lopposed discs, each ofv said separators being formed with an internal .axially aperturedz web adjacent its ends forfthe passagel of said shaft, a pair of abutment members mounted upon the shaft and one having a concave .face for abutting the convex face of one `of the VVcarter-.discs of said series and the other having La convex face for abutting the concave face of theeother outer .disc of the series, va pair'of adjustable combineddisc' binders and bearing elements for the shaft adjustably engaging with the ends of the latter and lbearing against the other faces of said members,

means coacting with said elements and shaft vto Y prevent ,the revolving ofthe former upon the latv ter Vwhen'said elements are in adjusted position,

Va combined supporting ,and coupling structure of yoke shape contour having'itsarms disposed horizontally, said arms constituting hangers, said hangers being formed with sockets, and said ele-` ments having a portion of their length revolubly mounted .in said sockets.

-5.:A grader planer, comprising a shaft, aiseries of spaced concavo-'convex discs mounted upon and bodily movable with the shaft, one-piece separators vinterposed between said discs and each havingy vconcave andconvex ends abutting a pair of .opposed discs, each of said separators being formed with an internal axially apertured web adjacent its ends for the passage ofY said shaft, `a pair of abutment members mounted upon the shaft and one having a concave face for abutting the convex face of one of the outer discs of saidA having a portion of their length revolubly mounted in said sockets, and said structure-'provided with means having provisions for coupling it to a traction and adjusting means therefor.

6. A grader planer comprising a shaft'y a series of spaced concavo-convex discs mounted upon and bodily movable With the shaft, one-piece separators interposed between said discs and each having concave and convex ends` abutting a pair of opposed discs, each ofA said separators being formed with an internal axially apertured webV adjacent its ends for the passage of said shaft, a pair of abutment members mounted upon the shaft and one having a concave face for abutting the convex face of one of the outer discs of said series and the other havingy a convex face for abutting the concave face of the other outer disc of the series, a pair of adjustable combined disc binders and bearingelements for-the shaft ad justably engaging with the ends of the latter and bearing against the other faces of said members,

Vmeans coacting With said elements and shaft to prevent the revolving of the former upon the latter when .saidelements are in adjusted position, aV combined Lsupporting'and coupling structure of yoke shape contour having its arms disposed horizontally, saidV arm constituting hangers, said hangers being formed with sockets, said elements having a portion of their length Y revolubly mounted in said sockets, said structure provided With means having provisions for coupling it to a traction and -adjusting means therefor, and an adjustable thrust bearing mounted in one of said sockets and i abutting that element extending thereinto.

V'-7. A grader planer comprising a shaft, a lseries of `spaced concavo-convex Vdiscs 'mounted upon and bodily movable WithY the shaft, one-piece separators interposed between `said discs and each having concave and convex ends abutting a pair of opposed discs, each of said separators being form-ed with an internal axially apertured web adjacent its ends forrtherpassage of saidshaft, a pair of abutment membersV mounted upon the shaft and one having a concave facefor abutting the convex face of one of the outer discs of said series and the othery having a convex face'for abutting the concave face of the other outer disc of the series, a pair of adjustable combined disc.

bind-ers and bearing elements for the shaft ad-r Y justably engaging with'the ends of the latter and bearing against the -other'fac'es of said members, means coacting with said elements and shaft to prevent the'revolving of' the former upon'the lattei` when said elements are in adjusted position, and a combined supporting and coupling structure, said elementsbeing revolubly'mounted in said structure-and having laterally disposed annular flanges at their outer ends.

8. A grader planer comprising ra shaft,v a series of spaced concavo-convex discs mounted'upon .and bodily movable With theY shaft, one-piece separators interposed between said discs and each having concave and convex ends abutting a vpair of opposed discs, each of said separators being formed with an internal axially apertured webY adjacent its 7ends for. the passage of said shaft, a pair ofabutment members mount-ed upon the .shaft and onehaving `a concave face for abutting the convexface of one of the outer discs of saidV seriesand the other having a convex face for abutting the concave .face of the other outer disc of the series, a pair of adjustable combined disc binders andbearing elementsffor the shaft adjustably engaging with the ends ofA the latter and bearing against the other `faces of said members, means coacting withsaid elements and shaft to prevent the revolving ofthe former uponthe Ylatter when said elements are' in adjusted position,

a combined supporting and coupling structure of yoke shape contour having. its arms disposed horizontally, said arms constituting hangers, said hangers being formed with sockets'and said elements having a portion of their length revolubly mounted vin said socket'sand being formed at their outer ends with laterally disposed Vannular flanges. i

9. vA grader planer comprising a shaft, a series of spaced concave-convex discs mounted upon and bodily movable with the shaft, one-piece separators interposedbetween saidv discs and each having concave and convex ends abutting a pair of opposeddiscs, each of said separators being formed with an internal axially` apertured web adjacent its ends for the passage of said shaft, 'a

pair ofabutment Amembers mounted upon the shaft and one having a; concave face for abuttingY ythe convex face of one of the outer discs of'said series and the other having a convex face for abutting the concave face of theother outer disc of the series, a pair of adjustablercombined disc binders and bearing elements` for the shaftV adjustably engaging with the ends of the latter andbearing against the other faces of said members, means coacting with said elements and shaft to prevent the revolving of the former upon the latter when said elements are in adjusted position, a combined supporting and coupling structure, said elements being revolubly mounted in said structure, and said structure being provided with spaced adjustable coupling devices for connecting it to a traction means therefor and with spaced means for connecting it to an adjusting means therefor.

l0. A grader planer comprising a shaft, a series of spaced concavo-convex discs mounted upon and bodily movable with the shaft, one-piece separators interposed between. said discs and each having concave and convex ends abutting a pair of opposed' discs, each of said separators being formed with an internal axially apertured web adjacent. its ends for the passage of said shaft, a pair of abutment members mounted upon the shaftfankl lone having al concave face for abutting the convex face of .one of the outer discs of saidY series and the other having a'convex face for abutting the concave vface Vof the other outer disc of the series, a pair of adjustable .combined disc binders and bearing elements for the shaft adjustably engaging with theends ofthe' latter and bearing against the other faces of said members, means coacting with said elements and shaftto prevent the revolving 'ofthe former-upon f the latter Vwhen* said elements are in adjusted pling structure, said elements being revolubly mounted in said structure, said structure being provided with spaced adjustable coupling devices for connectingit to a traction means therefor and with spaced means for connecting it to an adjusting means therefor, said. coupling devices beingpositioned ,at the .top of said structure, and said spaced means beingarranged at the front of said structure.

11. A grader planer comprising a shaft,` a series 'of spaced ccncavo-convex discs` mounted upon andbodily movable withthe shaft, one-piece bearing against the otherfaces of said members, means coacting with saidV elements and shaft to prevent the revolving of the former upon the latter when said elementsV areinadjusted position, a combined supporting and coupling structure,

-said elements being revolubly mounted in said structure, said structure provided with pivots for coupling it to a traction and to an V'adjusting means therefor, and combined spacers and stiffeners mounted Yon said pivots for and between which is adapted to be disposed the said traction and the said adjusting meansis extended.

12. In a graderjplaner, a horizontally disposed .supportingY structure common to a plurality of bodily revoluble cutting discs fand to a plurality `of stationary cleaner membersforrsaid discs, said structure having spacedmeans at its front for Y coupling it to an adjusting means therefor forming an elementofa traction devicaspaced .adjustable couplers extending forwardly from said structure for connecting it to' said adjusting means, means for pivotally connecting said couplings to the top of said structure, and combined stiffenersand spacers for and connected to said 20 position, anda combined supporting and couy 1 Vjustably engaging with the ends Aof the latter and spaced means and for and connected to the means i for pivotally connecting said couplings'to thertop ofsaid structure.

13. In a grader planer a horizontally disposed supporting structure common to a set of bodily revoluble cutting'discsA and a set ofstationary cleaner` members and: having spaced means at its front for coupling it to an adjusting means therefor forming an element of a traction device,

'y spacedadjustable coupling devices extending forwardly from said structure v.for connecting-it to .ends of the sides of'said structure, a series of spacedcutting discs carried vby and bodily movable with said shaft, a pair of spaced endwise aligning adjustabletubular shaft' bearing and disc tightener elements threadedly engaging with and encompassing said endY terminal portions of the shaft, saidelements being revolubly mounted in and extending from the inner faces of the sides of said structure at the rear endof the latter, vertical hanger means, meansV for connecting the lower end of said hanger means to said structure, and adjusting means for said structure connected to the'top of the front of the latter and to the upper portion of said hanger means.

15. In a grader-planer, a. mobile horizontally disposed yoke shaped structure. open at its rear, a horizontally disposed revoluble shaft having its end terminal portions extending into the rear ends of the sides of said structure, a series Vof spaced cutting discs carried by and bodily movable with said shaft, a pair of spaced endwise aligning' adjustable tubular shaft bearing-and disc tightener elements threadedly engaging with and encompassing said end terminal 'portions of the shaft, said elements being revolubly mounted in and extending from the innerrfaces of the sides of said structure at the rear end of the latter, vertical hanger means, means extending forwardlyk from the front of said structure and extending through andstraddling thelower end'of said hanger'means for connecting the latter to said structure, and'adjusting means for said structure connected tothe top ofthe forward end of the'latter andV to the upper portion of said hanger means. v Y

16. In aV grader-planer, a'mobile horizontally disposed yoke shaped structure open'at its rear, a horizontally disposed revoluble shaft -having its end terminal portions extending into the rear ends of the sidesV of said structure, afseries of spaced cutting discs carried Yby and bodily movable with said shaft, a pair of ,spacedv endwise aligning adjustable tubular shaft bearing and ydisc tightener'elements threadedly engaging with and encompassing said end terminal portions of thev shaft, said elements being revolubly mounted in and extending from the inner faces of the sides of said structure at the rear/end of the latter, Vertical hanger means, a horizontally disposed revoluble annulus connected rto the upper end of said hanger means, spaced'means arranged at the front of said structure and extend- Y clined spaced adjusting means for said structure connected at the upper end to the upper portion of the hanger means, and spaced means upon the top ofthe front end of said structure extending .through and straddlingthe lower end of said adjusting means for connecting the latter to the front end of the structure. A

- 17. In a grader-planer, a mobile horizontally revoluble structure provided withv hanger means, a horizontally disposed yoke open at its rear, closed at its front and extended laterally in opposite directions with respect to Vsaid structure, a shaft positioned within .and having its end terminal portions extending into the sides of the yoke, a series of cutting discs. mounted. on the shaft, separators interposed between the discs, a pair of spaced endwise aligning Ladjustable tubular bearing and tightener elements encompassing andv threadedly engaging with the end terminal portions of said shaft, said elements being revolubly mounted in and projecting from the inner faces of the sides of said yoke, abutments interposed between said elements and theouter of the discs of said series, said elements providing, when adjusted in adirection towards said abutments, the binding of the discs, separators and abutments on the shaft whereby the latter said discs, separatorsVabutments and elementswill bodily revolve together relative to the yoke, spaced means extended forwardly from thev front of the yoke for connecting to the latter the lower' end 'of said hanger means, adjusting means for the yoke extending rearwardly from the upper portion of, said hanger means, and spaced means upon the top of the forward end of the yoke for connecting to the latter the said adjusting means.

18. In a grader-planer, a planer structure including a horizontally disposed yoke and a series of revoluble cutting discs; said yoke open at its rear end and closed at its front end, a horizontally revoluble mobile structure including wardly inclined adjusting means for the yoke connected at the upper end thereof to the upper portion of the hanger means, bolt elements arranged at thetop of the front end of said yoke, supports for the bolt elements, the lower end of said adjusting means extending into said supports, saidbolt elements extending through the lower end of Vsaid adjusting means, and stiffeners within said supports and mounted on the bolt elements at opposite sides of the lower end of the adjusting means.

F`. M. HARGRAVE.

Images