US1316694A - dickinson - Google Patents

Description

H. S. DICKINSON.

WHEELED PLOW.

APPLICATION FILED AUG.12. 191s.

Patented Sept. 23, 1919.

4 SHEETS-SHEEY 1.

7v w w m 4 u u n 2 3 x L W a H. s. DICKINSON.

WHE ELED PLOW.

APPLICATION HLED MIG.12. I915.

PatentedSept. 23, 1919.

enemas gnucnfoz Y Kal 4- SHEETSSHEET 2.

H. S. DICKINSON.

WHEELED FLOW.

APPLICAHON man AUGJZ. 1915.

Patented Sept. 23, 1919.

4 SHETS-SHEET 3- anvcu f0:

H. S. DICKINSON.

WHEELED PLOW.

APPLICATION FILED AUGJZ. I915.

314mm: to:

4 SHEETS-SHEET 4- Patented Sept. 23, 1919.

whom, J

UNITED STATES PATENT OFFICE.

HARRY S. DICKINSON, OF MOLINE, ILLINOIS, ASSIGNOR T MOLINE 210W COMPANY, A. CORPORATION OF ILLINOIS.

WHEELED PLOW.

Specification of Letters Patent.

Patented Sept. 23, 1919.

To all whom it may concern Be it known that I, HARRY S. DIGKINSON, a citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Wheeled Flaws, of which the following is a. specification, reference being had therein to the accompanying drawing.

This invention relates to wheeled plows and has reference more particularly to that type of plow in which a plow frame equipped with plowing devices, is sustained by ground wheels in such manner that the frame and wheels may be moved relatively to each other to raise and lower the plows.

The object of the present invention is to provide power operated mechanism for raising and lowering the plows, and for setting them at intermediate points to vary the depth of plowing, and with these ends in view my invention consists of mechanism of improved form by means of which the adiustment of the plows is effected by power derived from the travel of the machine through the field, suitable power controlling devices being employed by means of which the operator or attendant may throw the power means into action to raise the plows, may disconnect the power means to permit the plows to be lowered, or can effect intermediate adjustments of the plows, either to increase the depth of plowing or to diulinish the same.

ln the more specific embodiment of my invention, the frame of the machine, in the form of a single unitary structure, is equipped with a plurality of plowing devices thereby constituting a gang-plow, which frame is supported at its front by land and furrow wheels mounted on suitable wheel sl'lpports operatively connected together and means of which the members of the clutch may be connected or disconnected at will, the connection of the clutch causing the drum to be rotated by the rotary motion of the land wheel, due to the advance of the machine in the field, which action will wind the chain on the drum and will shift the wheel supports relatively to the frame and elevate the latter and thereby raise the plows and the disconnection of the members of the clutch permitting the, weight of the frame and plows to move the same downwardly relatively to the wheel supports, thereby lowering the plows into action. The rear end of ,the frame is sustained by a rear furrow wheel mounted on a support movable up and 'down relatively to the frame and controlled in its up and down movements automatically by the movements of the supports for the front wheels, and in such manner that when the front wheel supports are moved to elevate the plows, the rear wheel support will be likewise moved to elevate the rear end of the frame, and when the frame is lowered at the front as described, it will be correspondingly lowered at the rear.

In the accompanying drawings I have illustrated a form of mechanism embodying the above mentioned characteristics, which in practice has been found to answer to a satisfactory degree the ends and objects to be attained. It will be manifest, however, that the invention may be embodied in other and different forms and that the construction may be variously modified and changed by the skilled mechanic without departing from the limits of my invention, and further it will be understood that the invention is not limited to any particular form or construe-- tion of the parts except in so far as such limitations are specified in the claims.

In the accompanying drawings:

Figure 1 is a broken perspective view of a wheeled plow having my invention embodied therein, the plows being shown raised out. of action.

Fig. 2 is a side elevation of thesame with the plows lowered in action.

Fig.3 is an edge view. partly in section, of the stub lever by which the plows are locked in their adjusted position.

lowered to adjust the rear end of the frame Fig. 8 is a top plan view of the same.

Fig. 9 is a perspective view of the detachable hand lever for adjusting the plows by hand.

Referring to the drawings:

1 represents a suitable frame-structure,

consisting, in the present instance, of a number of fore-and-aft-extending beam -members which are spaced apart and rigidly connected together in the form of a single unitary frame structure. In the particular form of the frame structure shown, three beam-members 2, 2 and 2", are employed, adapted to carry plowing devices in this case in the form of mold hoard lows, two

of the beam-members 2 and 2 being rigidly connected at their forward ends by means of a transverse connecting bar 3, and at their rear ends by a transverse brace 4. while the third beam-member 2" is connected at its front to the side of the member 2 and is connected at its rear end to the rear end of the member 2" by the transverse brace 5. This frame is sustained at its forward end by means of a land wheel 6. and a front furrow wheel 7, and at its rear end by a rear furrow wheel 8. The land wheel is carried by a land wheel support in the form of a crank shaft comprising a horizontal inwardly extending shaft proper 9, a laterally extending crank arm 9", and an outwardly extending horizontal wrist portion 9 The shaft proper 9 of the crank shaft is mounted to rock in bearings 10 on the machine frame, While the land wheel is mounted for rotation on the wrist portion 9 of the shaft, the rocking of the shaft in its bearings serving to swing the wheel up and down relatively to the frame. The furrow wheel 7 is carried by a furrow wheel support in the form of a. crank shaft. consisting of an inwardly extending horizontal shaft proper 11 which extends parallel to the shaft pro per of the other crank shaft, and which is mounted in hearings on the frame, a latcrally extending crank arm 11". and an outwardly extending wrist portion 112 the furrow wheel being mounted for rotation on the wrist portions 11, and the construction be ing such that when the shaft is rocked. the furrow wheel will be swung up and down relatively to the frame similar to the action of the land wheel.

The two crank shafts are operatively eonnected together in such manner that when one is rocked, it will impart a corresponding and simultaneous rocking motion to the other, in order that the two wheels may be moved in unison relatively to the frame in raising and lowering the same and the plows. Any suitable and appro )riate form of connection may e employed or this purpose, but I have illustrated an adjustable connection between the two crank shafts which forms no part of the present invention, but is the invention of another party, and on which a separate application Will be filed. As shown more particularly in Fig. 1 this connection is in the form of an adjusting lever 12, jointed at its rear end to an arm 13 fixed to the end of the land wheel crank shaft, and provided with a locking latch 12 adapted to operatively engage in any one of a number of holes in an arm 14 fixed to the crank arm 11 of the furrow wheel crank shaft, which lever when its latch is so engaged, will form a jointed connection between the two crank shafts by which the motion of one will be transmitted to the other.

The rear furrow wheel 8 is mounted on the horizontal laterally extending end of awheel support 15 which extends forwardly and then upwardly vertically in the form of a journal arm 16 which is mounted to swivel in an upright bearing collar 17, the upper end of the journal arm having fixed to it, above the collar a sleeve 18. The collar is mounted at its lower end to rock relatively to the frame on a horizontal transverse axis, so that in the rocking motions of the collar, the wheel support. and consequently the wheel carried thereby, will. be shifted up and down relatively to the frame. This axis is in the form of a pivot bolt 19 which is passed. horizontally through two rearwardly extending bracket plates 20 bolted by upper and lower bolts 20 and 20 to the opposite sides of the roar beam-member 2*. and through a lug 17" on the collar. which lug extends forwardly between the bracket plates. The pi vota] movements of the collar to raise and lower the rear furrow Wheel, are controlled automatically by the up and down movements of the land and furrow wheels at the front. of the frame. so that when the front wheels are moved downwardlv to elevate the frame and plows at the front. the rear furrow wheel will be correspondingly moved to correspondingly elevate the frame at the rear, as will be more fully described hereinafter.

The rocking motions of the front wheel supports to-raise and lower the plow are effected by means of power derived froin the travel of the machine through the field, the said power in the present instance being taken. from the land wheel by means of the mechanism now to be described.

On reference particularly to Figs. 1, 5 and 6 it will be seen that there is applied to the inner end of the hub of the land wheel 3, an outer driving member 21 of a clutch, the inner driven member 22 of which clutch, is loosely mounted on the wrist portion 9 of the crank shaft at the inner end of said wrist portion. The member 21 of the clutch is in the form of a disk provided. in its outer edge, on its inner side, with an open peripheral, lot 23. The driven member of the clutch is in the form of a disk having on its outer edge an outwardly extending peripheral flange 24 extending within the peripheral slot 23 and adapted, when the clutch member 22 is moved outwardly, to bear frictionally against the inner wall of the peripheral slot and efl'ect a driving connection between the two clutch members.

- sleeve 26 mounted loosely on the inner end i The driven member of the clutch is provided with -a hub constituting in effect a winding drum 25, within which extends a clutch actuating of the wrist portion of the crank, the'said sleeve hearing at its outer end against an inwardly extendin annular shoulder 27 on the hub of the driven clutch member and the said sleeve being capable of a rotary oscillation on the wrist and capable also of an driven clutch member to eifect the connection of the clutch, is effected by means of a "clutch members and maintain disconnection endwise shifting movement outwardly to shift the driven clutch member into engagement with the driving clutch member. As

a result of the construction described, it will 7 be understood that when the landwheel is rotating, in the travel of the machine, and is imparting a corresponding rotation to the driving clutch member so that, if the driven clutch member is shifted into frictional engagement with the other member, the driven member will be rotated with the wheel and will correspondingly rotate the winding drum 2-5. The outward movement of the and at its inner end against the shoulder 26 on the driven clutch member and, the tendency of the spring being to separate the thereof. To the winding drum 25 1s coh- 'nected the forward end of a chain 31, the

"rear end of which is connected with an arm 32 fixed to the frame of the machine, the

arrangement bclng such that when the drum is rotated, the chain will be wound thereon, and the land wheel crank shaft will be swung downwardly and to the rear, this action effecting a corresponding movement of the furrow wheel crank shaft, and resulting in the elevation of the frame and plows,

the motion of the drum being eifected as heretofore described by the rotation of the land wheel due to the travel of the machine through the field.

The connection and disconnection of the clutch members is effected by means under the control of the operator or attendant, in

the present instance the engineer of the tractor to which the plow is connected, a rope or cord being extended from the controlling means, within reach'of the engineer to enable him to raise and lower and adjust the plows, while at the same time he may control the tractor. These controlling means will now be described.

On reference to Fig. 1 it will be seen that there is connected fixedly with the clutch actuating sleeve 26 at its inner end, an upwardly extending arm 33 whose outer end is connected to a connecting rod 34, which extends iearwardly and has its inner end mounted in a slot- 35 in the lower end of an upright clutch actuating lever 36. lever is pivoted on a horizontal transverse axis as at 37, to a stub lever 38, the inner end of which is mounted loosely on the shaft proper 9" of the land wheel crank shaft.

The upper end of the clutch actuating lever has connected with it, the rear end of an actuating cord 39 which is extended forwardly so as to be conveniently operated by the engineer or attendant. The construction is such that when the engineer pulls forwardly on the cord, the actuating lever 36 will be rocked on its axis, and its lower end will be swung to the rear, which action will. through the medium of the connecting rod 34, oscillate the sleeve 26, and due to the cam surface thereon engaging the pin 29 and crank arm 9, the driven clutch member will be shifted into engagement with the driving clutch member, and the winding drum will be r0- tated with the landwheel. This action will wind up the chain, and will swing the land and furrow wheels downwardly and elevate the plows, the release of the cord permitting the spring 30 'to act and disconnect the clutch members. The stub lever 38 is so connected with he land wheel crank shaft, that the rmking movement of the shaft will correspondingly rock the lever, this connection being of such character that the wheel will be permitted to yield upwardly relatively 1 5 to the lever in over-riding obstructions.

This connection consists of a curved strap or arm 40, the upper end of which is connerted as at 41 to the stub lever, and the lower end of which passes loosely through an opening This 95 in the arm 9 of the crank shaft, a head 42 being applied to the lower end of the arm to bear against the rear side of the crank arm 9" and a spiral spring 43being applied to the lower portion of the strap and bearing at its upper end against a shoulder 44 thereon and at its lower end against the forward side of the arm 9". The arrangement is such that when the crank shaft is rocked to swing the arm 9* downwardly, the stub shaft will be swung downwardly with it, while at the same time the wheel may yield upwardly relatively to the shaft, against the pressure of the spring.

The stub lever eoiiperates with an upright segment frame 45 fixed to the frame of the machine, and which is provided at its upper portion with a number of notches 46 by means of which the stub lever may be locked to hold the wheel supports in position when the plows are down in action, and provided also with a lower notch 47 by means of which the stub level may be locked to hold the plows elevated out of action. The stub lever is provided with a locking latch 48 cooperating with the notches, which latch is formed on the inner laterally extending end of a latch rod 49, extending longitudinally along the outer side of the stub lever and jointed at its rear end to the clutch actuating lever 36 at a oint above the pivotal axis of said lever, t e latch rod being guided in its endwise movements, by means of a slot 50 in which the forward lateral end of the latch rod extends. The latch is acted on by a spiral spring, 51 connected at its forward end to the laterally extending end of the latch and connected at its rear end to the stub lever, and tending to maintain the engagemerit of the latch with the edge of the segment frame. tion, when the stub lever is swung downwardly, by the downward movement of the crank arm 9" to elevate the plows, and when the latch arrives opposite the lower notch, it will enter therein and the parts will be locked with the plows raised. When, however, the parts are moved in thepposite direction to lower the plow, and w en the latch arrives opposite any one of tlie upper notches 46 in the segment frame, the latch will enter therein and the parts will be locked with the plows down in action.

Due to the connection of the latch rod with the clutch actuating lever 36, the operation of the latter by the cord will actuate the latch rod, and release the stub lever from Whatever position it may for the time being be locked 1n, the length of the slot 35 in the lower end of the actuating lever being such, inrelation to the movement of the latch necessary to release the same, that the latch maybe actuated to release thg lever, without actuating the clutch membol tothmnthe As a result of this construcclutch into action. In the operation of the parts, therefore, a slight pull on the cord will serve to release the stub lever, while a greater and continued pull will serve to throw the clutch into action, the clutch after having been once thrown into action and the cord being released, the latch will engage one of the notches in the segment frame, and. will lock the stub lever thereto. When the parts are in this position the slot 35 in the actuating lever will permit the clutch to be disconnected by means of the clutch spring, the end of the connecting rod 34 in this movement being shifted-rearwardly in the slot 35.

As a result of the construction. described, and of the relation of the parts stated, when the plows are down in action with the crank arms swung forwardly, and with the latch engaging one of the upper notches in the segmerit frame to lock the parts in this position and with the clutch disconnected, if it is desired to raise the plows out of action, the operator pulls forwardly on the aetuatin cord to rock the clutch actuating lever 3 The first movement of the lever will disengage the latch from the notch in the segment frame, and release the parts, and the further movement of the lever, due to the continued and further pull on the cord, will rotate the clutch actuating sleeve 26 and throw the clutch into action, whereupon the motion of the land wheel being taken up b the winding drum, the chain will be wound thereon, and the crank arms will be swung downwardly and to the rear, thereby swinging the stub lever downwardly and ele ating the plows. The tension on the actuatin cord is maintained until the lower notch 4% of the segment frame is reached by the latch, whereupon the cord is released, which will permit the latch to enter the lower notch and the clutch spring will act to disconnect the clutch, the result being that the plows will be held locked in an elevated osition. If now the plows are to be lowered into action, of course the clutchshould remain out of action, and therfme a slight pull is iven the cord suflici ent only to release the atch from the notch in the segment frame. The weight of the plow frame will now act to lower the same relatively to the wheels, the crank arms in this action in effect swingin upwardly and the chain being unwount l from the drum. Provided that the plow is tobe lowered to a considerable depth, as determined by any of the upper notches 46 above the lowermost notch of the series, the operator will hold the cord so as to maintain the latch retracted, and when the notch is reached for the proper depth of the plows, the cord is released and the latch will be forced by its spring into said notch, thereb locking the parts in the particular adjus Ill I the latch an position. If, however, the parts are to be ocked in position with the latch entering thelowermost notch of the upper series, then the operator will, after releasing the latch by a Sli ht pull, immediately release the cord, and the latch travclin along the smooth edge of the segment rame as the stub lever move's upwardl will be automatically projected into sai lowermost notch by its spring. 3 a If the lows have been lowered to a certain dept as dete rmined by the engagement of the latch in one of the upper notches, and it is desired to elevate the plows a short distance, say to the next notch, the operator will give a strong pull on the cord so as to release ;'the latch and throw the clutch into action, and when the proper height has been reached, the cord will be fully released, w ith the result that the latch will engage inthe new position, and the clutch will be automatically disconnected by its spring. To restore the plows to their former ositioi, but a slight pull on the cord wil be i en,sufi icient only to release without throwing the clutch in, whereupon the frame will descend by gravity, and the cord being released, the latch will reengage the segment frame in the original position.

It is seen, therefore, that by means of my im roved controlling mechanism, not only is it possible to raise and lower the plows to the extreme limits, but their depth, when in action, may be varied at will by the proper manipulation of the cord actuated parts, either to increase the depth of cut or to diminish the same. This ca ability of inter'nediatecadjustments by t e controlling mechanism is of special advantage in connection with tractor-propelled plows, as it is a well known fact that in plowing under unusual 'condi ions of soil, which makes the pull of the plow extremely hard, and taxes the power of the cngine to the limit, it is necessary and highly desirable to raise the plows somewhat torelieve the load, and to prevent stalling of the motor or the straining of the parts. Also when unusual surface conditions of the soil are encountered, on which the tractor wheels be in to slip, it is necessary to relieve the loari which may be effected by raising the plows slightly as above described, and when these conditions are relieved. it is desirable to return to the normal depth conveniently and quickly, which action is provided for by my improved mechanism.

In order that the operator, in the operation of lowering the plows, may be relieved of the necessity of timing the release of the latch al the precise moment that the particular izotch for the desired depth is reached, 1 provide an adjustable stop device for limiting the upward swing of the stub lever and consequently the depth to which the plows will descend in the lowering action. This stop device coiiperatcs with the segment frame in such manner that it may be set to the different toothed positions, to correspondingly limit the upward movement of the stub lever, and to insure the engagement of the latchin the proper notch Without requiring the attention of the operator. A convenient form of stop device for this purpose is shown particularly in Fig. 1 and consists of a link or ring A. which encircles the toothed edge of the segment frame, and is adapted to be seated in any one of the other upper notches as desired, according to the depth to which the the extreme upper notch, the plows will be allowed to descend to the full and extreme depth, the link when engaged in the notch, being engaged by the rear edge of the stub lever. and acting to limit the upward motion of the same. If the conditions are such as to require a diminished depth of plowing, then the stop link will be shifted to one of the other notches, and in its new position the stub lever will be arrested as before and the latch permitted to be actuated to hold the parts at the diminished depth.

The mechanism for controlling the up and down movements of the rear furrow wheel automatically by the corresponding movements of the front supporting wheels, to the end that the frame as a whole will be raisrd and lowered at both ends, comprises lIltllQ present instance an upright lever 52 pivoted near its lower end, by means of a horizontal transverse pivot bolt 53, between the bracket plates 20, in advance of the rocking collar 18 before alluded to as constituting the bearing for the rear wheel support. The lower end of this lever is in position to engage a lug 5d projecting forwardly from the collar 17, and the upper end of the lever has jointed to it, the rear end of a fore-and-al'bcxtcuding operating rod 55, the forward end of which is connected to an arm 56 lixcd to and extending upwardly from the shaft proper of the land wllccl crank shaft. When the plows are down and in action the said arm 56 will be swung to the rear, and the weight of the rear end of the plow frame, acting on the pivotal connection of the collar 17 with the frame, the collar will be tipped forwardly on its axis and by the engagement of the lug 5-1 thereon with the lower end of the lever 52, the latter will be inclined rearwardly at its upper end with its rear edge engaging in a notch 57 in the forward side of the sleeve 18 and in this position of the parts, the rear wheel will be locked from swiveling action, and will travel straight forward in the line of draft. When now the ower lifting mechanism is operated as efore described, to swing the arms of the forward crank shafts downwardly and rearwardly to elevate the plows, the arm 56 on the land wheel crank shaft will be swung forwardly, which action will draw the operating rod 55, for wardly and this in turn will swing the upper end of lever 52 forwardly and its lower end rearwardly. .The first movement of the lever 52 will disengage the same from the notch in the sleeve 18, and the further movement of the lever will cause its lower end to engage the lug on collar 17, this action resulting in the rocking of the sleeve rearwardly ()1 its pivotal axis, and the movement of the furrow wheel downwardly and the correspondin; elevation of the rear end of the frame. 'When the adjusting mechanin1 is operated to lower the plows again, the foregoing operations are repeated, with the result that the rear furrow wheel will be permitted to swing upwardly in effect, rrlativ ly to the frame as the latter descends, and lever 52 will again engage in the notch in the sleeve. From the foregoing description. therefore, it will be seen that when the plows are elevated, the rear furrow wheel will be automatically released and permitted to swivel freely, so that it may follow the path of travel of the plow in turning at the ends of the furrows or in transportation and will thus facilitate the proper guidingof the machine.

The feature of thus raising the rear end of the plow is of advantage and'importance, in that in, turning at the ends of the furrows or in transportation, the plow bottoms are lifted entirely clear of the ground, thus keeping them clear of trash andfree of danger of usual obstructions. Also it has the advantage of relieving the wear on the heel of the land side. which would result if the plows were dragged around. The feature of automatically locking the rear wheel in the normal line of travel, when the plows are lowered in action, is of advantage in that it is often necessary when plowing, to back the plow up to clear an o struction, or to remove trash from the bottoms and also to make adjustments or replacements. If, in these circumstances, the rear wheel were allowed to caster or swivel, there would be nothing to prevent it from moving out of the line of travel, or from lllOVlll" sidewise into the furrow wall, or the lbwed ground, thereby rendering lia'ble, t e breakage or damage of the parts.

In order that the relation of the rear furrow wheel to the plow bottoms may be varied or adjusted in the normal operation of plowin so that the Wheel will take greater or ess pressure, I provide an adjustmg member, in the present instance in the form of a lever 54 provided with an upper arm 54", a lower arm 5i and two rearwardly extending parallel arms 54. This lever is situated between the plates 20 before alluded to, and has its rear arms pivotally mounted on the pivot bolt 53 of the lever 52. The lower arm 54 bears against the rear edge of the plow beam, while the upper arm is provided with an adjusting screw fi l which bears against the rear edge of the plow beam at a point above the lower arm. The plates 20 are slotted horizontally where the upper bolt 20 asses through them. so that the plates ant furrow wheel carried thereby may e tipped up and down relatively to the beam on the lower bolt 20 as an axis. As a result of the construction described, by first loosening bolt 20 and then screwing in the adjusting screw 54, the plates 20 and the furrow wheel will be caused to ti downwardly relatively to the beam, with t 1e efi'ect of imposing upon the wheel a greater force of pressure on the ground. When the adjusting screw is turned in the opposite direction, the beam is allowed to sink. thereby relieving the force of pressure of the wheel. In effect the plates 20 constitute a support for the rear furrow wheel, which support is adjustable up and down relatively to the beam by the lever 54, and in relation to which support, the furrow wheel itself may :be moved up and down by the lever 52.

In the use of tractor drawn plows, in which the adjustment of the plows is effected by power, it is desirable that means be provided for operating, the adjusting means manually to raise the plows out of the ground in the event that the tractor becomes stalled or is broken, which is more apt to occur in the use of light tractors. this condition, I propose to utilize the stub lever for raising the plows, by a Jplying to the lever a handle 58. The ban le may be applied as a permanent extension of the stub lever, or it may be in the form of a portable device to be detachably interlocked to operate the stub lever when the occasion arises. I show the same in this latter form in Fig. 9 where it will be seen that the stub lCWElTiS provided in its end with a notch 59, and is provided on its side with a lateral lug or pin 60, the said notch being ada ted to receive a lateral pin 61 on the side 0 the handle 58, and the said pin 60 being ada ted to enter a notch 62 in the inner end 0 the handle when the latter is up lied to the side of the stub lover. The e ect of the engagemcn-of the respective pins in the respeotive notches, is to effect a detachable interlorking connection of the hand lever with the stub lever, which will enable the stub lever to be operated by hand. Vith the plows locked down in action by the latch as described, of course it will be necessary To meet.

to release the latch, as by operation of the actuating cord before the handle can be operated to raise the plows.

Having thus described my invention, what I claim is:

1. In a wheel plow, the combination of a frame member adapted to carry plowing devices, a forwardly extending wheel support member pivotally mounted on the frame and. having a ground wheel rotatably mounted thereon, said support member adapted when moved relatively to the frame member rearwardly from a forward position, to elevate the frame member and plowing devices, a winding drum carried by one of said members normally at rest, means'for effecting driving connection between the drum and the ground wheel to cause the drmn to be rotated thereby, and a chain connected to the winding drum and to the other of said members and adapted when wound on the drum to swing the wheel support member rearwardly and elevate the frame member.

2. In a wheel 'plow, the combination of a frame adapted. to carry plowing devices, a wheel support mounted on the frame, a ground wheel rotatable on the support, said support being movable relatively to the frame to raise the same and plowing dc,- vic'es, a winding drum rotatable on the wheel support about the axis of the ground wheel and nornmlly at rest. means for connecting said-drum with the ground wheel at will to cause the drum tobe rotated by the ground wheel, and a winding chain connected with the drum and frame respectively and adaptcd when the drum is rotated by the ground wheel to be wound upon the drum and thereby shift-the wheel support relatively to the frame and elevate the latter.

3. In a wheeled plow, the combination of a main frame adapted to carry plowing devices, a wheel supportmovably mounted on said frame, a ground wheel rotatable on the wheel support, a driving clutch member rotatable with the ground wheel. a driven clutch member carried by the wheel support and movable into driving'engagement with the other clutch member, operative connections between the driven clutch memb and the frame of the machine adapted when said clutch member is rotated to shift the. wheel support and elevate the plowing devices a toothed segment frame on the main frame, a member movable with the wheel support and coiiperating with the segment frame, a clutch actuating levor pivotally mounted on 'said member, operative connections between said lever and the driven clutch member for controlling the engagement of the latter with the driving clutch member, and a releasable locking device connected with the clutch actuating lever for locking said member in different positions to the segment frame.

4. In a wheeled plow, the combination of a frame adapted to carry plowing devices, a wheel support m0 vably mounted thereon, a .ground wheel rotatable on said wheel su port, a driving clutch member rotatab e with the ground wheel, a driven clutch member carried by the wheel support and movable into driving engagement with the other clutch member so as'to be rotated thereby, a winding drum connected with the driven clutch member, a chain connected respectively with the drum and fram'e and adapted to be wound on the. drum, a. shifta le sleeve carried by the wheel support for moving the driven clutch member into on agement with the other clutch member, a c utch controlling lever movable with the wheel support. and movable also relatively thereto, and operative connections between said lever and said shifting sleeve, adapted when the lever is moved relatively tot-he wheel support to shift said sleeve and effect driving connection between the clutch memher and thereby wind the chain on the drum and move the wheel j support to elevate the frame.

In a wheeled plow, \t-he combination of a frame adapted to carryplowing devices, a wheelsupport movably mounted thereon, a ground wheel rotatable on said support, a

driving clutch member movable with the ground wheel, a driven clutch member carried by the wheel support and i-novable into engagement with the other clutch member, operati'ie c'opnections between the driven clutch member and frame, adapted to shift the wheel support and elevate the 310w, a clutch actluiting lever hiovable with the wheel support, and movable also relatively thereto, operative connections between the lever and driven clutch member adapted when the lever is moved relatively to the wheel support to move the driven clutch member into engagement with the other,

movable relatively thereto, a ground wheel rotatable on said Support, a driving clutch memberrotatable with the ground wheel, a. driven clutch memla'ron the wheel support, movable into engagement with the other clutch member. a shiftailile sleeve for moving the driven ch'itch member. a member movable with the wheel support, a releasable locking device carried by said member and adapted to lock the same to the frame, a clutch controlling lever mounted on said member and connected with the locking device to operate the same, and a rod connecting said lever with the shiftable sleeve, said rod and lever being movable relatively to each other to alimited extent.

7. In a wheeled plow, the combination of a frame ada ted to carry plowin devices, a crank sha t mounted to rock t ereon, a ground wheel rotatable on the outer wrist portion of the crank shaft, a drivin clutch member connected with the ground wheel, a driven clutch member rotatable on said wrist portion of the crank shaft, a. winding drum carried by the driven clutch member to be rotated thereby, a chain connecting said drum with the frame of the machine and adapted to be wound on the drum when the latter is rotated by the ground wheel, and thereby swing the crank shaft and clutch controlling means for effecting the connection. of the clutch members.

8. In a wheeled plow, the combination of a main frame adapted to carry plowing devices, a crank shaft mounted to rock thereon, a ground wheel rotatable on the outer wrist portion of the crank shaft, a driving clutch member connected with the ground wheel, a driven clutch member rotatable on said wrist portionof the crank shaft, a winding drum carried by the driven clutch member, a chain connecting said drum with the frame and adapted to be wound on the drum when the latter is rotated by the ground wheel, a lever movable with the crank shaft, a'releasable locking device on the lever, a segment frame on the main frame with which the locking device coiiperates to hold the lever in different positions relatively to the main frame, a clutch actuating lever pivoted to said lever and connected with the said lockin device, and operative connections between t e clutch actuating lever and driven clutch member for effecting driving connection between said clutch members;

9. In a wheeled plow, the combination of a frame adapted to carry plowing devices, supporting wheels for the front of the frame movable downwardly relatively thereto to elevate the frame at the front, wheelo erated power mechanism for moving Si1,l( wheels downwardly, a supporting wheel for the rear end of the frame movable downwardly toeievate said rear end, operative connections between said front and rear wheels acting automatically when the front wheels are moved downwardly to correspondingly move the rear wheel downwardly, whereby the two ends of the frame will be raised in unison, and manuconnections between the two wheel supports to cause them .to move down in unison; whereby both ends of the frames will be raised together, and manually operable controlling means for said wheel operated power mechanism.

11. In a wheeled plow, the combination of a frame adapted to carry plowing devices, a front wheel support movable up and down relatively to the frame to respec tively lower and raise the front of the same, a ground wheel on said support, wheel operated power means for movinp said support downwardly, a rear wheel support pivotally mounted on the rear of the frame on a horizontal transverse axis, a ground wheel thereon, an actuating lever for the rear wheel support, said lever being pivoted to the frame and adapted when moved forwardly to rock the rear wheel support and move the same downwardly to elevate the rear end of the frame, arod connected to said lever and extending forwardly, operative connections between the rod and front wheel support adapted when the latter is moved down, to pull forward on the rod and lower the rear wheel support, and manually operable controlling means for said wheel operated power mechanism.

12. In a wheel plow, the combination of a frame adapted to carry the plowing devices, a wheel support pivotally mounted on the frame and extending at an inclination therefrom and having a ground wheel rotatable thereon, said support adapted, when moved relatively to the frame from its inclined position toward the vertical, to elevate the frame and plowing devices, a winding drum movable back and forth with the wheel support and normally at rest, and adapted to be placed in driving connection with the ground wheel to be rotated thereby,

a chain connected with the drum and frame of the machine respectively, and acting, when the drum is rotated by the ground wheel, to shift the wheel su port and elevate the frame, and means or controlling the operation of the drum by-the ground Wheel.

13. In a wheel plow, the combination with a frame member adapted to carry plowing the frame member and plowing devices, :1,

devices, of a wheel support member pivotally mounted on the frame member and extending at an inclination thereto and having aground wheel rotatahlethereon, said su port member adapted when swung relative y to the frame member from its inclined position toward the vertical, to elevate winding um carried by one of said mem-, bers,- means for efi'ectmg drlvmg connection between the drum and the ground wheel to cause the drum to be rotated thereby, a.

chain connected to the winding'drum and connected operatively to the other of said members, and adapted when wound on the 15 drum to swing the wheel support member and elevate the frame member, and means, for controlling the operation of the drum by the ground wheel.

In testimony whereof, I have afiixed my 20 signature;

1 HARRY S. DICKINSON.

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