US1112267A - Motor-plow. - Google Patents

Description

M. E. COURTNEY.

MOTOR PLOW.

APPLIOATION IIL'ED DBO. 28. 1912'.

Patented Sept. 29, 1914 3 SHEETS-SHEET 1.

M. E. COURTNEY.

MOTOR PLOW.

APPLICATION FILED 1330.28, 1912 Patented Sept. 29, 1914.

3 SHEETS-SHEET 2.

M. E. COURTNEY.

' MOTOR PLOW.

APPLICATION FILED DEO.28,1912. 1 1 12,267. 4 Patented Sept. 29, 1914. a SHEETS-SHEET a.

dvwc wtoz UNITED STATES PATENT onrion.

MOYLAND E. COURTNEY, OF FAIRPLAY.

MOTOR-PLOW.

Specification of Letters Patent. Application filed December 28; 1912.

To (166 whom it may concern:

Be it known that I, MoYLANn E. NEY, a citizen of the United States, residing at Fairplay, in the county of Polk and State of Missouri, have invented new and useful Improvements in Motor-Plows, of which the following is a specification.

This invention relates to motor plows, the object in view being to provide a motor driven plow or other agricultural implement, in which an internal combustion motor of any suitable type may be employed for imparting motionto a traction drive wheel, by means of which the frame of the machine, together'with the operative parts thereof, is propelled along the field.

One of the principal objects of the invention is to provide means whereby when the plow or other implement comes into contact with an obstacle, the motor will be thrown out of operative connection with the driving wheel of the machine, causing the machine to stop without, breaking the plow beam.

A further object of the invention is to provide means within reach of the driver, whereby the direction of rotation ,of the driving wheel of the machine may be instantly reversed, without reversing or stopping the operation of the motor.

With the above and other objects in view, the inventioi'i consists in the construction, con'ibination ainlarrangement of parts, will be hereinafter more illustrated in the accompanying drawings, and pointed out in the claims hereunto appended. e

In the drawings: Figure 1 is a side elevation of a motor driven plow, embodyii'ig the present invention. Fig. 2 is a plan view of the same. Fig. plan view of the clutch.- Fig. 4 is a detail vertical section illustrating the plow raising and lowering mechanism. Fig. 5 is a front elevation of the front axle.

The motor plow contemplated in this invention comprises an open center. main frame or chassis, comprising the longitudinal bars 1 and 2, rear cross bar 3, and a suitable number of intermediate cross bars to give the required rigidity to the frame as a whole. At the forward portion of the frame is the front. axle .L which is connected rigidly to the side bars 1 and 2, and is pro- ,vided with pivoted and swinging steering fully described,

Coo'irri 3 is an enlarged sectional MISSOURI.

Patented Sept. 29, 1914.. Serial No. 739,099.

knuckles 5, carrying wheels 6 which are journaled on the dies of the lmuckles, the knuckles bciu otally connected, at 7, to the of the axle, so as to swing on vertical axes.

Connected to the inner end portions of the knuckles are the arcuate bars 8 forming bearings for the steering knuckles, and extending backward therefrom are arms 9 which are coupled together by a connecting spinrod 10. A crank arm 11 has a ]OiIltG(l connection with the connecting rod 10, and extends downwardly from the forward end of a steering rod 12 in the form of a. rock shaft mounted in suitable bearings 13 and 1 4, and provided at the rear with a. controlling hand wheel 15 arrai'iged just in front of a combined seat and gasolenc tank 16 located at the rear of the frame and supported by the sidebars l and 2.

17 designates pendant U-shaped hangers which secure the front axis 4 to the frame of the machine.

In addition to the support obtained by the Front steering wheels the rear portion of the frame of the plow is carried by a traction drive wheel 18 provided on its outer periphery with suitable traction ribs 19. The

the front steering rigid portion the cylinder of the motor, and the fly wheel thereof. The shaft 26 of the motor is mounted in a suitable supporting frame 27 attached to the main frame of the machinc, and in the rear upper extremities of parallel braces 28 which extend forward and connect rigidly to the machine frame, as shown in Fig. l. The braces 28 are provided; in-

sions 29 provided with slots 30 described in the arc of a circle, of which the shaft 2-3 is the center.

T he shaft 23 of the lZIEtIISIHiSSlOn gear 22 is movable lengthw'e of the slots 30, and is mounted in bearings n the. lower rear ends of the: side bars 31 of a pivoted and swinging frame, said frame being pivotally said shaft 26 is also journaled,

.termediate their ends, with upward extenmounted, at 32, intermediate its ends. In the upper rear ends of the frame bars 31 there is journaled a reversing pinion 33 which is adapted to be moved into and out of engagement with a drive pinion 34 adapted to be thrown into and out of engagement with the shaft 26 of the motor. It will be observed at this point that when the frame 31 is rocked on its pivot, the reversing pinion 33 is moved toward and away from the driving pinion 34, and simultaneously therewith the transmission gear 22 is moved into and out of mesh with the driving pinion 34. The transmission gear is alwaysin mesh with the driving gear21, and also with the reversing pinion 33, but said transmission gear. is thrown out of mesh with the driving pinion 34 when the reversing pinion 33 is thrown into mesh with said driving inion.

3 A hand lever 35, rod 36, lever 37, and link 38 may be employed for moving the reversing frame 31 on itsfulcrum, or any other suitable or convenient means may be employed for that purpose, the same being under the manual control of the operator in his seat on the machine.

The shaft 26 of the motor is connected by a suitable coupling 39 to a jack shaft or clutch shaft 40 arranged in longitudinal alinement therewith and forming an end extension thereof. Mounted on the shaft 40 is the driving pinion 34, ball bearings being preferably used for such mounting. Connected fast to the pinion 34 is a female clutch member 41, around which is placed a band brake 42 of the construction now in common use with automobiles, and having suitable connections leading back to the operators seat, to enable the operator 'to apply and release the brake. The pinion 34 and the clutch member 41 are both normally loose on the shaft 40 which is constantly rotated by the motor. The end portion of the shaft 40 has loosely mounted thereon a belt pulley 43, the hub of which bears against a collar 44 fast on the shaft 40, as shown in Fig. 3. At its inner end, the pulley 43 is provided'with a female clutch face 45 arranged at a suitable distance from the female clutch member 41, hereinabove described. Between the two female clutch members is arranged a double male clutch member, having the two beveled clutch portions 46 and 47 the part 46 being adapted to cooperate with the clutch member 41, while the part 47 is adapted to cooperate with the clutch member 45. These two clutch faces 46 and 47 are formed on a common hub which is provided with a groove 47', the purpose of which will hereinafter appear. Normally, the male clutch member is pressed inward into engagement with the-clutch member 41 by means of a thrust spring 48 which is coiled around the etween the hub of the pulley-43 and the male clutch member, When the male clutch is thrust outwardly by means, hereinafter described, it serves, on account of being feathered to the shaft 40, to take upthe belt pulley 43 and cause the same to rotate with the shaft 40 which is driven by the engine shaft.

In some cases, it is desirable to lock the belt pulley 43* to the shaft, so that it may constantly turn and act in the capacity of a fly wheel for the shaft of the motor. In

- order to'accomplish this, I provide a sliding key 49, which passes through a suitable guide on the outer face of the fixed collar 44, as shown in Fig. 3, the inner end of said key ,being'adapted to be held in a socket in the hub, as shown, by means of a spring 50 exerting an inward thrust on said key.

The hub of the clutch member 47 is grooved at 47. to receive the fork of a bellcrank shifting fever 51, from which a suitable connection 52 extends back to a lever mounted on the"dash-board 53 arranged in front of the drivers seat, as shown in Fig. 1. Another bell-crank shifting lever 54 is connected to the hub of. the male clutch member, and is connected to a lever 55 fulcrumed, at 56, intermediate its ends on the machine frame, and .provided in its opposite end with a set screw 57 .whi ch passes through the end of the lever, so as to contact with a trip arm 58 on a forwardly extending plunger rod or stem 59 connected at its rear end to the front yoke bar 60 which connects a pafi of plow beams 61 and 62 arfauged at opposite sides of the center of the machine and out of line with the track of the drive wheel 18.

The stem or plunger rod 59 constitutes a draw bar for the plows, and is mounted for a limited longitudinal movement, so as to bring the trip arm 58 into engagement with the set screw 57, the latter being adjustable, and said rod 59 is normally held forward but allowed to yield backward by means of a coiled compression spring 63 encircling the rod 59, and mounted between a shoulder on said bar and a fixed shoulder on the ma chine frame.

The oppositely arranged plow beams 1 and 62 are connected at suitable points with cross bars 64 and 65. so that the plows and beams are adapted to movetogether as a unit. Therefore, when one of the plows meets an obstruction, the plows all move rearwardly, thereby causing the trip arm 58 to come into contact with the lever 55, which and is connected to an operating lever7l.

arranged Within reach of the driver. 72

,deslgnates a suitable housing or cab which may be employed to protect the mechanism and the'operator.

From the foregoing description, it will be seen that by means of the construction here- "inaboye described, the driver may set the machine to move either forward or backward. In case one of the plowsmeets an obstruction, the clutch is automatically thrown out and the motor is disconnected from the driving wheel of the machine, thus bringing the machine to a quick stop and avoidin injury to the plows and other mechanism. The-driver may then swing the reverse frame 31,- so as to throw the pinion 33 into engagement with the pinion 34, at the same time throwing the transmission gear 22 out of engagement with the driving pinion 34. By then letting in a clutch, the machine will be driven, backward. With the aid of the steering mechanism, hereinabove described, the driver may direct, the machine to any desired point, making the turns at the ends of the rows, and otherwise manlpulating the plow in a manner similar to the ordinary automobile, now in common What is claimed is:

1. In a traction engine, an open center.-

frame, an element pulled by the tractor, a centrally arranged tractlon drive wheel, a

front axle, steering wheels connected there=- with, a driving pinion on the motor shaft,

a gear wheel fast on the axle of the drive,

wheel, atransmission gear wheel meshing wlth the dr1ve wheel gear, a reversing pinion meshing with the transmission gear, and

means thrown into action by relative'movement of the frame and the element pulled by the tractor on meeting an obstruction operating to disengage the driving pinion from its shaft and throw the driving mechanism out of gear.

2. In a traction engine, an open center frame, an element pulled by the tractor, a centrally arranged traction drive wheel, a front axle, steering wheels connected there with, a driving pinion on the motor shaft, a gear wheel fast on the axle of the drive wheel, a, transmission gear wheel meshing with the drive wheel gear, a reversing pinion meshing with the transmission gear, and means thrown into action by relative movement of the frame and the elementpulled by the tractor on meeting an obstruction operating to disengage the driving pinion from its shaft and throw the driving mechanism put of gear, a pivoted frame by which the transmission gear and reversing pinion are carried, and manually operated means for swinging said frame.

3. In a traction engine, an open center frame, an element pulled bythe tractor, a centrally arranged traction drive wheel, a front axle, steering wheels connected therewith, a driving pinion on the motor shaft, a

gear wheel fast on the axle of the drive Wheel, a transmission gear wheel meshing with the drive wheel gear, a reversing pinion meshing with the transmission gear, a trip arm connected with the element pulled by the tractor, a clutch for throwing the driving pinion and reversing pinion alternately into and out of engagement with the motor shaft, and a clutch operating lever arranged in the path of said trip arm and adapted to be actuated thereby when the element pulled by the tractor meets an obstruction.

In testimony whereof I aflix my signature in presence of two witnesses.

MOYLAND E. COURTNEY.

Witnesses:

Coornn JoNEs, Guns 0. HOLMAN.

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