US1259095A - Plow. - Google Patents

Description

O. HECHT.

PLOW.v AFPLSCATION FILED OCT. 9. 19H.

Patented Mai. 12, 19M

4 SHEETS-SHEET l.

Inventory Attorneys@ vo. HECHT.

PLOW.

APPLlcATloM man ocT. s. 1911.

Attorneys@ 4 SHEETS-SHEET 2.

Patented Mar. 12, 1918.

Witnesses Patented Mar. 12, MHS.

4 SHEETS-SHEET 4.

www5,

Witnesses A Y. o

Atto rnyeysg NETE@ STAR@ AEN Fhllflfl.

OTTO HEIGHT, OF RIDGEVAY, NORTH CAROLINA.

PLOW.

Application tiled October 1317.

To all 107mm t may Cof/wem f I Be it known that l, @Tro HECHT., a citizen of the United States, residing at Ridgeway, in the county of lifiarren and State of iorth Carolina, have invented new and useful Flow of which the following is a specification.

The device forming the subject matter of this application is a plowing mechanism of that general type in 'which the plow-carrying vehicle moves backwardly and forwardly along the field to be plowed, without turning the vehicle end for end at the extremities of the furrow, a plow facing in one direction being lowered when the vehicle is n'ioving in one direction, and a plow, facing in the opposite direction, being lowered when the direction of travel of the vehicle is reversed.

lt is the object of this invention toprovide novel. means for raising the respective plows at the ends of the furrows, to provide releasable means for holding the plows elevated and5 generally, to improve and to enhance the utilityof devices of that type to which the present invention appertains.

With the above and other objects in view which will appear 4as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed: without de' parting from the spirit of the invention.

In the accompanying drawings Figure l shows in top plan7 a plowing mechanism constructed in accordance with the present invention;

Fig. 2 is an elevation dissslosing that side of the vehicle upon which the plows are located Fi 3 is an elevation depicting the opposite side of the structure from that shown in Fig. 2, remote parts, such as the plows, being omitted in order that Fig. 3 may show clearly the paies which are undisclosed in detail .in Fig. 2;

Fig. 4 is a fi-agmental side elevation, diagrammatic in nature, and illustrating the mechanism whereby the raising of the plows i is effected bv the movement of one of the ground wheels. Fin'. 4: disclosing some parts which appear in Fig. 3;

Fig. 5 is a transverse section taken through a portion of the-frame of the machine7 and Specification of Letters Patent.

Patented Mar. 12, 1918. Serial No. 195,620. l

illustrating one of the levers shown in Fig. et, engaged with its keeper;

Fig. 6 is a diagrammatic side elevation illustrating a slight modification in the invention;

Fig. 7 is a rear elevation of the structure shown in Fig. 6, parts being broken away;

Fig. 8 is a side elevation showing one of the wheels with the ring applied thereto;

Fig. 9 is an elevation of the structure shown in Fig. 8, the same being viewed edgewise.

The device forming the subject matter of this application includes a wheel-mounted vehicle, embodying a frame l which may be constructed as desired. Located adjacent one end of the frame l is a fork 2 in which is journaled a ground wheel 75. A fork 3 is disposed adjacent the other end of the frame l and carries a ground wheel 76. The forks 2 and 3 embody shafts 4 mounted to rotate in the ends of the frame l, to effect a steering of the vehicle, and the shaft of the fork 2 having ak limited endwise vertical movement in the frame. so that the vehicle may accommodate itself readily to inequalities in the ground, the shaft of the rear fork 3 having no such vertical movement7 and the frame l being supported upon intermediate ground wheels 25 and 26, alluded to briey at this point, and to be described in detailhereinafter.

seat- 5 is mounted upon the frame l near to vthe fork 3. A standard t5 is erected on the frame 1 at a point adjacent the seat 5, the upper end of the standard being supplied with a bearing 150. Journaled for `rotation in the bearing 150 and in a bearing 7 on the frame lof the machine is an inclined steering shaft 8, carrying a hand wheel 9 whereby the shaft may be rotated, the wheel being accessible to a person occupying the seat 5. Secured to the lower forward end of the steering shaft 8 is a worm l0 which, as shown in Fig. 3, engages with a worm wheel or segment llcarried by a shaft l2 journaled in bearings 14 on the frame l. Secured to the shaft 12 is a depending arm 15. The rear end of a link 16 is pivoted to the lower end of the armi l5. and the forward end of the link is pivoted to the lower end of a lever 17Yof the iirst order, fulcrumed at 18 on the framework of the vehicle. A long linkf19 is pivoted at its rear end to the lower end of the lever 17, the forward end of the link being rotation.

pivoted to a laterally offset projection 20 on the fork-2. rlhe forward end of a link 21 is pivoted to the upper end of the lever 17, the rear end of the link being pivoted to an offset projection 22 on the rear fork 3.

The Steef/"ing opera/250111.-Presupposing that the vehicle traine 1 is supported on the intermediate ground Wheels 25 and 26, hereinbctore alluded to, it will be understood that when the shaft S is rotated by means of the -Wheel 9, the Worin 10, cooperating ivith the segment l1, will rock the shaft l2, the arin 15 of the shaft actuating` the link 1G, the link 16 tilting the lever 17 on its tulcrinn 1S, and motion lpeiirrA imparted to the links 21 and 19, the link 21 rotating the fork 3, and the link 19 rotating the fork 2, the shafts 4. ol the forks turning in the trarne l. in this \vay,rthe Wheels 76 and 75 will be turned laterally, in one dir ction or the other, to eli'ect the steering operation.v

to the mounting of the intermediate ground Wheels 25 and 26, it may be stated thatY the side portions of the frame 1 are connected ata point between their ends, by aV heavy cross bar 58, sustained by means of braces assenbledivith the sides of the traine 1. The cross bar 58 includes upstanding side plates GO, shoivn in Fig. 1 and connected with thesides of the trarne 1. 'The cross bar includes bearings in which a main axle 24 is journaled for rEhe intermediate ground Wheel. 25 is secured to the axle 24, the intermediate ground wheel 26 being connected Ywith 'he main axle 24 through the instrumentality ot' diliicrential 27, it desired, the diderential being indicated diagrammatically in Fig. 1.

A sprocket Wheel 2S is connected with the main axle 24,- and about the sprocket Wheel is trained a sprocket chain 29 engaged with a sprocket Wheel 30 carried by a transverse shaft 31 journaled'in bearinO's 32 on the Ytraine l. The shai''t 31 carries gear Wheel B3 nies-li into a pinion 34 on a transverse shaft journaled in bearings 36 on the .traine l. The inner end of the shaft carries a relatively large bev*- elefl r 37 adapted to be engaged by either one ot a pair of beveled pinions 38 attached to the ends ol" a sleeve 39 which splined as shown atr -ll to a shat't 40 dri en by an engine 41 land rotatable in bearings on the iraine 1, the shaft extending longitudinally ot the vehicle. A. lever 44 is disposed transversely ot the vehicle and is fulcruined intermediate its ends as shown at 45 on the frame 1. rlhe inner end ot the lever 44 is operatively connected as seen at 151 with the sleeve 3 9, toeft'ect an cndivise movement of the sleeve, without interfering with the rotation of the sleeve. The outer end of. the lever 44 is pivoted to a rod 46 extended rearwardly and pivoted to a vlever 47 fulcrunied at 48v motion is transmitted by one ofthe beveled ainions- 38 to the beveled Orear Wheel 37V and thence into the shaft the shaft 3l being rotated by the coacting gear Wheels 34 and 33 on the shafts 85 and 31 respectively. When the shaft 31 is rotated, the sprocket Wheel 30 drives the sprocket chain 29 and the latter rotates the inain axle 24 and the Wheels A26 and 25 through the instrumentality of the sprocket Wheel 2S. Then the lever 47 is shifted, the rod 46 is actuated.y the latter tilts the lever 44 and the lever 44 nieves the sleeve 39 endwise on the sha-tt 40, thus bringing one or the other ot' the beveled pinions 38 into mesh with the beveled gear Wheel 37, thereby to reverse the direction of travel otx the vehicle. Y

It vvill berobvious that when the sleeve-532 positioned as shown in vFig. both of 'the beveled pnnons 3S are onto-t engageinent With the beveled gear 37, yand then tie vehicle Vis not propelled, even though the engine shaft v40 be rotated. 'Y f A clutch 51 is interposed inthe'engine shaft 40 and is controlled by a horizontal lever 52 fulcrurned intermediate its ends,

as shown at 152, on the lranie otV the `ina-V Y l, as shown in Fig. 1, and located below the main traine, as shown in Fig. 2, is a loopshaped frame 55. The intermediate ground Wheel operates Within the contour ot the traine The loopshaped suppleinetail trame 55 is connected byY hangers and braces Tvrith one side of the main traine 1. The outer side portion of the loop-shaped traine 55 carries laterally offset bracket 61 and 61a.' The'nuineral 62 denotes an outer plow beam carrying a plow-V Gl. The plow beam has a transverse head 63, provided .vith openings 64. A; pivot element 65 is mounted in the offset bracket 51a and may be mounted in any of the openings 64, thereby to permit a raising and lowering, toradjnstinent, or' that end ot the plow beam' 62 which is remote from the plowT 6G. The numeral 67 .denotes an outer plow beam carrying a plovv 72.

The plows and 65 point in opposite directions. The outer plow beam 57 is supplied with tr `e head (3l-5 having; openings nl pivot element 70 is inounted in the laterally7 odset bracket 6l, Yand .eaged in any o t' the openings 69, a vertical adjust lent ot that end beam 57 which remote 'from ylfhe 'downwar l swinging 1 0 ven ent of the plow beam beyond an )oint is limited by a stop 71 on d :traine The downward 62 e point is limited by ene said plow beain and bracket 01.

The numeral 73 yinarlts an inner plow beain, so called because it is located adjacent the inner side of loop-shaped supplemental traine 55. rl'he beain 73 carries a plow 7l which points in the saine direction as'the plow 55 `and in an opposite direction to the plow 72, the plows 66 and 7st being spaced longitildinally of the machine. The numeral 77 denotes an inner plon1 l': n car' 'ng' a plow 7 S, spaced longitndi the ula chine frein the plow and poin inthe.

aine direction the plow 7 the plow 7 8 pointing,` in an opposite direction to the plows 60 and 7d. The downward swinging inoveinent of the plowvbeains 77 vand 7 8, beyond an extreme point, is limited by stops 79 carried bjc the inner portion of the loopshaped supplemental trarne 55, as indicated in Fig. 1.

lt been pointed out hereinbe'lore thatl the ends ol" the plow beains02 and 07 may be adinsted vertically, owing to the provision ot the heads 68 and 03. rl`his operation can be carried ont readily, by the simple mechanisms alluded to, because the beams 07 and 02 are disposed on the outer side or" the loop-shaped supplemental traine The plow beams 7 9 and 77, however, are located adjacent the inner side or" the supplement loopehaped traine 55 and are more or less A specific means, therefore, is provided for adjusting, vertically, the pivotcd ends of the plow beams 77 and 7 8, o0 and this mechanism will now be described. lflerticalli,VT spaced horizontally disposed plates er gnidesSO are attached to the intermediate cross bar 5S. the froides 80,

82 mounted to reslide rods S1 and cinrocate verticallv. 'The inner plow beain to the slide 77 is nivoted indicated rod S2, the inner end of the plow beam 79 beine? siinilarlv pivoted to slide rod 81. The lower ends of linlfs pivoted to the slide rods 81 and 92, the upper ends ot the links being pivoted to the lower ends ot' the levers 95 tulcrnnied at 86 onsen'inents 97 ca rried bv the traine 1. the levers 85 being' supplied with latch mechanisms 88 which coact with the segments.

inaccessible.

The (mljustment of the pz'fvoteal ends'of the plow beams-lt will be obvious that the pivot element may be engaged in any of the openings 69 of the head 681011 the plow beam 57, the pivot element 65 being engaged in any of the openings 64 in the head 63 of the plow beam 62, a vertical adjustment o' the pivoted ends ot said plow beams being breng it about in this way. llhe levers 85 may be tilted on their ulcra 86,l and the links 8l will then raise and lower the slide rods S2, the same operating` inthe guides 80; When the slide rod 82 is raised and lowered, the pivoted end of the plow beanii77V will be raised and lowered, and whenthe slide rod 81 is raised and lowered, the pivoted end of the plow beam 73 will participate in the movement.

As shown in Fis. 1, a. transverse shaft 89 is located adjacent the seat 5 and 4is journaled in bearings 90 on the 'trarne 1. Near to one ot its ends, the shaft S9 is supplied with an arni 92, connected. as indicatedin 2, by means ot a flexible element 94, with the plow beam 73. The shaft 89" is terrninalh7 provided with an arm 91, and a flexible element 93 connects the arin 91 with the/plow beam 62. The opposite end of the shaft 89 is equipped with a crank arm 95.

A. transverse shaft 96 is located adjacent the forward end ot the frame 1 and isjournaled in bearings 102 on the traine. Adviacent one of its ends, the shaft 96 is pro vided with an arrn 97 connected by means ot' a tlexible element 99 with the plow beam 77. The shaft 96 is terininalliT eouipnei` with an arm 9S united b v means of a flexible.

element 100 with the plow beam 67. At its opposite end, the shaft 96 carries an arm 101, located upon the same side 0i3 the trarne 1 as the arm which constitutes part ot the shaft S9.

to 3. it will be observed that one end of a link 103 is pivoted to the arm 101 ot the shaft 96. the other end oi' the link beine: pivoted to the lower end of a lever 104, tnlcrnmed at 105 on a segment 106earried bv the frame 1, the lever having; latch mechanism 107 which cooperates with the segment. A flexible element 108 is connected with the `latch mechanism 107 and is trained across a pnllev 109 ionrnaled on the lever 104. rlhe flexible element 109 "s extended around a direction-changing d ler 110 mounted on the trarne 1 and thence extended rearwardlv to a point adjacent seat 5. the standard 6 beim;r provided with a cleat 111 upon which the tree end ot the r'leXible element 108 niav be belaved.

@ne end ot' a link 112 is oivoted to the lower evd of t arm 95 which forms a part ol the shaft 89, the other end of the linlr. 112 beinrr nivoted to the lower end of a lever 114 fulcriimed at 115 o a. segment 116 carried bv the frame 1. The lever 114 is provided withra` latch mechanism 117 coperat-V ing with the segment 116. The lever 114 is located close enough to the seat 5 so that the occupant of the seat can manipulate the lever 114 and its latch mechanism 117 without ditliculty.'

Comparing Fig. 4 with Fig. 3`it will be seen that a lever 118, disposed in an approximately horizontal position, is fulcrumed intermediate its ends, as shown at 119, on the frame 1 of the machine. rlhe rear end of the lever 118 lis accessible from thel seat 5. Intermediate its ends, and upon one side of the fulcrum 119, the lever 118 is supplied with a depending eye or guide 120: At its end, and upon the opposite side of the fulcrum 11.9 from the guide 120, `the lever 118 is provided with an eye or guide 121. When the lever 118 is in a neutral position (to be defined hereinafter) the lever is engaged with a spring keeper 122 carried by the frame 1 and shown in detail in Fig. 5.

The numeral 123 l denotes an actuating member .in the form of a rigid rod extended longitudinally of the machine andrpivoted at one end to the lever 104 which, through the Vmedium of the link,103 and the crank arm 101, participates in the movements of the shaft 96. The actuating member or rod 123 is mounted to tilt vertically and to slide longitudinally in the guide 121 which constitutes a part of the lever 118. The inner end of the rod 123 is supplied with a hookshaped portion 124 carrying a roller 125. j

The numeral 126 marks an actuating member, in the form of a rod, pivoted at one end to the lever 114 which.l through the instrumentality of the link 112 and the arm 95.y participates in the movement of the shaft 89. The rod 126 is adapted to move endwise and to tilt vertically in the guide 120 which forms a part of the lever 118. The inner end ofthe actuating member 126 is provided with a hook-shaped portion 127 carrying a roller 153. The hook-shaped ends 127 and 124 of the actuating members 126 and 123, respectively, are adapted to engage, one at a time, with lateral projections 128 on the sprocket wheel 28 which, it is to be recalled, is mounted on the main axle 24 and is driven bv the engine 41. The actuating members 123 and 126 are raised and lowered, at their inner ends, by manipulating the lever 118, the function of the guides 120 and 121 being clear and obvious. Then the lever 118 is engaged with the keeper 122, as indicated in Fig. 5, the hook-shaped ends 12-7 and 124 of the respective actuating members 126 and 123 are disposed out of the orbit traversed by the projections 128 on the sprocket wheel 28. This is the neutral position of the lever 118,hereinbefore mentioned.

The operation of the automatic plow lift.- Let it be supposed that the vehicle is moving in the direction of the arrow A of Fig. 2 and that'theplows 66 and 74 are in' the ground. When the vehicle arrives at the end of the furrow, the operator disengages the lever 118 from the keeper 122 and swings the lever downwardly on its fulcrum 119, thus vlowering the guide 120 and the actuating member 126 until the hooked end 127 ofthe actuating member lies on the orbit of the projections 128on the sprocket wheel 28. One of the projections 128, as it is carried in an orbit in the sprocket wheel 28, moves the actuating member 126 lengthwise, the same sliding in the guideA 120. After'the actuating` member 126 has moved lengthwise to a predetermined extent, the said projection 128 is disengaged from thehook shaped end 127 on the actuating member, the roller `153 facilitating this operation. When the actuating member 126fmoves endwise, the lever 114 is tilted, and the link 112 rocks the shaft 89 by means Vof the larm 95. lVhen the shaft 89 is rocked, Ythe arm 92 on the shaft vates the beam 73 and the plow 74. ln a similar way, the arm 91 of the shaft 89Vele'- vates the beam 62 and the plow 66 by .means mechanism 117 on the lever 114 engages aueok tomatically with thesegment 116, thereby to hold the plows 74 and 66 elevated.

The operator restores the lever 118 to its neutral position, that is, Vin engagement with the keeper 122, the ends 124 and 127 ofthe actuating members 123 and 126 being disposed out of the path traversed by the projections 128 on the sprocket wheel 28. rl`he vehicle may now be started back to plow a furrow in the direction of the arrow B of Fig. 2. -1n order to lower the plows 72 and 78, the operator draws on the flexible element 108, the sametraveling over the idler 110 and the pulley ,109. By this operation, the latch mechanism 107 on the lever 104 is released from the segment 106 thus setting the shaft 96 free for rotation. The arms 99 and 98 ofthe shaft 96 swing downwardly under the weight of the beams 77 and 67, and the plows 72 and 78 enter the ground.

At the end of the furrow. plowed in the direction of the arrow BY of Fig. 2, the lever 118 is manipulated tobring the hook end 124 on the actuating member 123 into the path of one of the projections 128 on the sprocket Vwheel 28. -The lever 104 and the'link 103 are actuated. The link `103rocks the shaft V96 by way of theY arm 101, the arm 97 effects 67, the plows'78 and 72 being lifted out of the ground. rlhe actuating member 123 tilts the lever 104 and the latch mechanism 107 cooperates with the segment 106 to hold the plows 72 and 78 elevated. Then it is desired to lower the plows 74 and 66 to begin the furrow in the direction of the arrow A, this operation is brought about by tilting the lever 114, the llatch mechanism 117 being disengaged from the segment 116, a rotation of the shaft 89, and a downward swinging movement of the arms 92 and 91, together with the plow beams 73 and 62 taking place.

Medikation-In Figs. 6 and 7, the plow beams are shown at 129. Levers 130 swing transversely of the plow beams and are fulcrumed at 131 on brackets 132 carried by the plow beams. The ends of a bar 133 areV pivoted at 134 to the levers 130, the numeral 135 denoting any suitable means for moving the bar 133 endwise. Disk plows 136 are journaled on the lower ends of the levers 130. it will be obvious that when the bar y133 is moved to the left (Figs. 6 and 7) the levers 130 will be tilted on their fulcra 131, thus to throw the disk plows 136 out of the furrow. When the furrow is begun, the engagement between the soil and the lower portions of the plow disks 136 will carry the latter downwardly into working position in the soil.

Rmond-The operation of the device has been setforth hereinbefore, step by step, but in conclusion it may be stated that the operative connection between the engine 41 and the shaft 40 may be made and broken by manipulating the pedal 54. The direction of travel of the machine is reversed by operating the lever 47. The structure is steered by means of the` wheel 9. The lever 11S raises and lowers the actuating members 126 and 123 so that they may be operated by `the projections 128 on the sprocket wheel 128. The plows are lowered by means of the lever 114, on the one hand, and by means of the lever 104 on the other hand, the lever 104 being controlled by the flexible element 10S which is extended rearwardly to a point adjacent the seat 5. The inner plow beams 73 and 77 may be adjusted vertically at their points of pivotal support by swinging the levers 85 on their fulcra 86.

Rings 200 may be applied to the side faces of the wheels 75 and 76, the rings comprising parts 201 and 202, held in place by securing elements 203. The rings 200 tend to offset side draft. They are removed when the device is being` moved from place to place along the highway.

It will be understood that any of the gears hereinbefore mentioned may be made to run in oil. This is a detail lying within the skill of a mechanic, and unworthy of specific delineation,

Y Having thus described the invention, what is claimed is 1. 1n a device of the class described, a frame; transverse shafts journaled on the frame and having arms; first levers under the control of an operator and fulcrumed on the frame; links connecting the levers with the arms.; a second lever fulcrumed on the frame; actuating members pivoted to the first levers and movably supported on the second lever; an axle journaled on the frame; a ground wheel carried by the axle; an eccentric element carried by the axle and movable in an orbit, the second lever constituting means for bringing the actuatingk members, one at a time, into the orbit of the eccentric element; beams pivoted to the frame; opposed plows carried by the beams; means for connecting each beam with one of the transverse-shafts to raise the plows when the shafts are rotated by the actuating members; and latch mechanisms controlling the first levers, the latch mechanisms acting automatically to hold the plows elevated, and being releasable by an operator to permit a lowering of the plows.

2. Av device constructed in accordance with claim 1, and further characterized by the provision of means for engaging the second lever to hold the second lever and both of the actuating members out of the orbit of the eccentric element.

3. n a device of the class described, a frame; transverse shafts jonrnaled on the frame and having arms; first levers under the control of an operator and fulcrumed on the frame; links connecting the levers with the arms; a second lever fulcrumed on the frame; actuating members pivoted to the first levers andmovably supported on the second lever; a rotatable member journaled on the frame; means for rotating said member; an eccentric elementcarried by the rotatable member and movable in an orbit, the second leverconstituting means for bringing the actuating members one at a time into the orbit of the eccentric element; beams pivoted to the frame; opposed plows carried by the beams; means for connecting each beam with one of the transverse shafts to raise the plows when the shafts are rotated by the actuating member;

and latch mechanisms controlling the first levers, the latch mechanisms acting automatically to hold the plows elevated, and being releasable by an operator to permit a lowering of the plows.

4. ln a device ofthe class described, a fame; transverse shafts journaled on the frame; first levers under the control of an operator and fulcrumed on the frame; means for connecting the levers with the shafts; a second lever fulcrumed on the frame; actuating members pivoted to the first levers carried by the beams; means for connect-V ing each beam With one of the transverse shafts to raiseV the ploivs when the shafts are rotated by the actuating members; and latch mechanisms controlling the rst levers, the latch mechanisms acting automatically to hold the plovvs elevated, and being releasable by an operator tov permit a lowering of the plows.A

5.. In a device of the frame; transverse shafts journaled on the frame and havingarms; levers under the Y control ofan operator and fulcrumed on the frame; links connecting the levers with the arms; actuating members pivoted to the first levers; anpaxle journaledon the frame; a ground Wheel carried by the axle; an eccentric element carried by the axle and movable .in an orbit; means for bringing the actuating members one vat a time into the orbit of the eccentric element; beams pivoted to the frame; opposed ploivs carried by the beams; means for connecting each beam With one of the transverse shafts to raise the ploivs when the shafts are rotated by the actuating' members; and latch mechanisms controlling the first levers, the latch mechanisms acting automatically to hold the ploWs elevated, and being releasable by an operator to permit a lowering of the ploivs;

6. In a device of the class described, a frame; transverse shafts journaled on the frame; first levers under thel control of an Copies of this patent may be-obtained for class described; a l

tuating members one at a time into the orbit described yby the eccentric element;v beams pivoted to plovvs carried by the beams; means for con* the frame; *opposed necting each beam Withone of the transverse, Y

shafts to raise the ploivs when the shafts are rotated by the actuating members; and

means for lcontrolling the movement of the i first levers.

7. In a device of the class described, a

frame; a rotatablemem'ber jou-rnaled'` on the frame and having an eccentric element movable in an orbit; actuating members; means supporting both actuating members; for moving the actuating members in opposite directions, one at a time; and for bringing them selectively into the orbit of theV eccentric element; ploivs pivot/allyY supported on the frame; shafts journaled on the frame; means for connecting the shafts with the ploivs; connections between the actuating members and the shafts; whereby the shafts will be rotated and the ploWs raised bythe actuating members; and means assembled with the` connections for holding the plovvs elevated. Y

In testimony that l claim the foregoing as my oWn, l have hereto affixed my signature in the presence of two Witnesses. i

y OTTO HECHT. litnesses 5 Kaspar; KILIAN, Y CARL BRIETZKE.

five cents each, by addressing the Commissioner ef Patents,

Washington, D. C.

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