US1074681A - Combined plow and cultivator. - Google Patents

Description

G. E. WOMBLE.

COMBINED PLOW AND GULTIVATOR. APPLICATION FILED SEPT. 2, 1911.

1,074,681 Patented Oct. 7, 1913.

I 2 SHEETS-SHEET 1.

21 2 22 2 llHllIlJ I i mum;

INVENTO ATTORNEY COLUMBIA PLANOOIAPH C0. WASHINGTON, D. C-

G. E. WOMBLE. COMBINED PLOW AND GULTIVATOR. APPLICATION FILED $31 12, 1911.

Patented 0013.7,1913! 2 SHEETS-SHEET 2.

WITNESSES:

INVENTOR 0;! 0 a z 41/ '1 I ATTORNEY cm. WASHINGTON.

A PLANOGRAPH BLE, a citizen of the United States,

rrnn STATES PATENT orrrcn CORNEILQUS E. WOMBLE, 0F CEDAR. HILL, TEXAS, ASSIGNOR OF ONE-HALF T0 HENRY G. MARTIN, OF ARLINGTONfTEXAS.

COMBINED PLOW AND CULTIVA'IOR.

Specification of Letters Patent.

To all whom it may concern.

- Be it known that I, CoRNEILoUs E. WOM- residin at Cedar Hill, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Combined Flows and Cultivators, of which the following is a specification.

My invention relates to a new and useful. combined plow and cultivator.

The object of the invention is to provide a manually operated mechanism by which the front and rear plows may be simultaneously adjusted up or down, and held in any position of such adjustment.

Another object of the invention is to provide a swivel mounting of the frame of the machine upon the axle thereof, and a lever mechanism by which the axle may be manually subjected to an angular displacement in the frame of the machine, thus making it possible for the operator to hold the machine to a straight line of travel, even though the direction in which the draft acts may vary somewhat from such a line.

A further object of the invention is to provide a vertical blade rigid upon the lower extremity of a pivoted vertical shank, connected with the axle in such a manner that the blade remains constantly in a plane perpendicular to said axle, the blade being adapted to undergo vertical adjustment in unison with the plows.

Finally the object of the invention is to provide a device of the character described that will be strong, durable, simple and ethcient, and comparatively easy to construct, and also one the various parts of which will not be likely to get out of working order.

WVith these and various other objects in view, my invention has relation to certain novel features of the construction and operation, an example of which is described in the following specification, and illustrated in the accompanying drawings, wherein:

Figure 1 is a top view of the invention. Fig. 2 is a vertical sectional elevation of the machine, the section being taken upon the line mw of Fig. 1. Fig. 3 is a detail perspective viewshowing an auxiliary frame, which is mounted beneath the main frame of the machine adjacent to the ground. Fig. 4 is a detail perspective view of one of the axle bearings. -Fig. 5 is a detail perspective view of a slotted bar, which is transversely mounted between the lateral members of the main frame.

Referring now more particularly to the drawlngs, wherein like numerals of reference designate similar parts in all the figures, the numeral 1 denotes a pair of transporting wheels rigidly mounted upon the extremities of an axle 2. Upon the axle is supported the rear portion of the planter frame 3, whichconsists of a pair of parallel side members connected at the rear by a semi-circular member, and having their forward extremities turned toward the center of the machine, and attached to the rear portion of the tongue 1 at each side thereof. The frame 3 is provided with a pair of elongated horizontal slots 5, which are symmetrically disposed with relation to the axle extremities when the axle is in its normal position at right angleswith the direction of travel of the machine. Each of these slots receives an axle bearing 6, which is adapted to slide freely in its slot, an upper and lower groove 7 being provided in each bearing to receive the edges of the slot and hold the bearing therein. Each bearing is provided with. an integral sleeve 8 projecting outwardly at right angles to the bearing, and receiving the correlated axle extremity. It is thus apparent that the axle, with its two bearings, may undergo a swivel motion in the rear portion of the frame, the bearings 6 being slidably displaced in the slots 5 during such motion.

At the rear extremity of the tongue, a vertical rod 17 is pivotally mounted, said rod being of square cross-section. Upon the lower extremity of said rod is rigidly carried a flat blade 18 provided with a curved edge. The rear end of the tongue 4; is provided with a centrally located horizontal groove 19, through which groove the rod 17 passes. The rod 17 also passes through the center of a transversely mounted horizontal bar 20, passing through the groove 19, and having its extremity projecting through the forward portion of the slots 5. The connection between the rod 17 and the arm 20 is a rigid one, so that said arm may be employed as a lever to communicate rotation to the rod. A pair of horizontal rods 21 have their forward extremities pivotally attached to each end of the bar 20, the rear extremities of said rods being pivotally mounted between lugs 22, a pair of which is Patented Oct. '7, 1913.

carried by each bearing 6 at the front thereof within the slots 5.

At the right side of the machine adjacent to the axle, a quadrant 23 is rigidly mounted upon the frame 3, and a lever 24 is pivotally mounted at the quadrant center, said lever being provided with the usual spring-pressed rod, acting in conjunction with the teeth of the quadrant. The lever 24 extends downward for some distance beyond its pivotal point,

and has its lower extremity pivotally connected to a horizontal rod.25, the other extremity of which rod has pivotal attachment to one end of thebar 20.

7 It is apparent from the foregoing descrip tion that the operator, by subjecting the lever 24 to an angular displacement, can produce. a simultaneous swivel motion of the axle in the frame 3, and a rotation of the blade 18 through an angle equal to that traversed by the axle, so that the blade will remain constantly in a plane perpendicular to the, axle. A vertical post 26 is adj ustably mounted in the rear end of the tongue, said post being pass-ed through the tongue just in front of the groove 19. The lower extremity of said post has rigid connection with the vertical shank 27 of a plow 28. The plow 28 will preferably be of that class known as middle breakers, which are adapted to throw up the dirt at each side of a furrow. In order to reduce the friction due to vertical motion of the post 26, a pair of horizontal rollers 29 are mounted above the tongue at the front and back of said post, said rollers being supported by a pair of bars 30 each forming an arch, and having their forward extremities secured to the tongue at each side thereof, and their rear extremities mounted upon the cross bar 15.

The bars 30 are strengthened and reinforced by apair of curved braces 31, secured to said bars opposite to the forward rollers 29, and having their other extremities attached to the forward extremities of the lateral members of the frame adjacent to the tongue.

A description will now be given of the mechanism employed to manually communicate vertical adjustment to post 26. Adjacent to the rear extremity of the tongue, a rockshaft 32 is transversely mounted between the parallel members of the frame 3. At one end of the rock-shaft 32, a lever 33 is rigidly mounted thereupon, said lever being adapted to be held in its various positions of adjustmentby a .quadrant 34 fast upon the frame 3 above the rock-shaft, and the usual spring-pressed rod. An arm 35, projecting forwardly and upwardly from the rockshaft 32, has its extremity pivotally'attached to the lower end of a swinging rod 36, the upper end of which is adapted to be pivotally attached in various positions upon the upper extrem ity of the post 26. A plurality of bolt holes 37 are provided in the upper extremity of '40, which receives the collar 38, the rod. upon which the collar is mounted being.

passed loosely through the bifurcated ex- A set-collar 38 is rigtremity of the arm 39. It thus'ibecomes ap-' parent that when the parts 26,, 27, and 28 are subjected to a vertical adjustment, such adjustment is also communicated to the. parts 17 and'18 through'the-arm 39. It is to be observedthat the rod 36. is adapted to move freely up or down in the bar 20', although it cannot undergo a rotary motion independent of said bar.

A description will now be given ofauxiliary frame mounted beneath the main frame, adjacent to the ground, and supporting three small plows orsho-vels," one of which opens a small secondary 'furrowpand the other two cover said furrow, said frame being adapted to undergo vertical adjustment simultaneously, with the plow 28 and the blade 18. The auxiliary frame, which is clearly illustrated in Fig. 3, is denoted by the numeral 41, and consists of an elongated metal bar bent'to the form of a rectangle, theextremities of said barbeing'brought together at the front ofsaid rectangle. The frame 41 is pivotally mounted adjacent to its forward extremity, the pivots being .bars 43, which are substantially vertical and V have their upper extremities attached to the under side. of the. bar 15 at each end thereof. The extremities of the-bars, forming the frame 41, which extremities are joined together and projected forwardly, are denoted by the numeral 44. Between. said extremities is clamped the forward end of a rearwardly projecting. plow shank 45,- car- ,rying a plow 46 upon its downwardly curved end. A cross-bar 47, extending between the lateral members of the frame 41 adjacent to. the front of said frame, serve the double purpose of receiving'the lower ends of the bars 42 and 43, andgiving the plow-shank 45 the necessary rigidity to hold it parallel with thelateral members of the frame 41. Upon the rear end of the auxiliary frame 41 are mounted the vertical shanks 47 of twoplows 47 which serve to a cover the furrow produced by theplows 28 .and 46. The conjoinedextremities of the auxiliary frame are provided with opposite curved portions, between which is clamped the lower extremity of a vertical rod 48, the upper end of which is pivotally secured to an arm 49 projecting rigidly from the rock-shaft 32. The lower end of the rod 48 extends a short distance below the auxiliary frame extremities 44, and carries aspring 50 coiled upon this lower portion, abutting at the top and bottom against washers 51, downward displacement of the lower washer being prevented by a pin 52, and the upper washer being held in place by the frameextremities 44. j

The operation of the parts set forth in the foregoing description will now be more specifically explained. When the lever 24 is thrown forward by the operator, the lower extremity of said lever will be rearwardly displaced, producing a corresponding rearward displacement of the rod 25, and thus subjecting the bar 20 to an angular displacement, and producing a partial rotation of the square rod 17 The angular motion of the bar 20will be communicated to the axle through the two rods 21, said rods, in conjunction with the bar 20 and the axle, having the well known mechanical movement of a four bar linkage. During such angular displacement of the axle, the

axle bearings 6 undergo a sliding motion in the slotted circular rear portion of the frame 3.

When the lever 33 is thrown forward by the operator, a slight rotation of the rockshaft 32 is produced, causing the extremity of the arm 35 to-move downward in a circular arc, and communicate a downward motion to the post 26 through the swinging rod 36. 'The post 26 communicates a like motion to the square rod 17 through the action of the arm 39 upon the set-co1lar 38. The forward motion of the lever 33 produces an upward movement of the extremity of the arm 49 in a circular arc, causing the rod 48 to be vertically displaced. The rod 48 communicates its displacement to the forward extremity of the auxiliary frame 41, and since said frame is pivotally mounted adjacent to its forward end, a downward displacement of the rear portion of said frame will result. It is thus made clear that the lever 33 serves to simultaneously accomplish a similar displacement of the plows 28, 46, and 47 and also the guiding blade 18.

Itis apparent that the construction herein described gives the operator complete control of the machine. By means of the steering lever 24 the machine may be guided and all obstructions such as rocks, etc., readily avoided.

What I claim is:

1. In a combined plow and cultivator, an axle, ground wheels secured on the axle, a

horizontal frame having elongated slots in opposite sides. extending longitudinally of the frame, said frame having its slotted portion curved, bearing members in which the axle is rotatably secured, said axle being held against longitudinal displacement in the bearing members, said bearingmembers being mounted in the slots of the frame and having upper and lower grooves receiving the adjacent portions of the frame, said grooves being curved to conform to the contour of the frame, and connections extending from the bearing members having pivotal Connection with a mounting fixed against movement transversely and longitudinally of the frame.

2. In a combined plow and cultivator, an axle, ground wheels secured on the axle, a horizontal frame having elongated slots in opposite sides extending longitudinally of the frame, said frame having its slotted portions curved, bearing members in which the axle is rotatably secured, said axle being held against longitudinal displacementin the bearing members, said bearing members being mounted in the slots of the frame and having upper and lower grooves receivin the adjacent portions ofthe frame, said grooves being curved to conform to the contour of. the frame, a vertical support disposed forward of the axle, a cross harfixed on the vertical support, the vertical support being pivotally sustained and held againstmovement transversely and longitudinally of the frame, and pivoted connections between the cross bar and the bearing mem bers.

3. In a combined plow and cultivator, an axle, ground wheels secured on the axle, a horizontal frame having elongated slots in opposite sides extending longitudinally of the frame, said frame having its slotted portions curved, bearing members in which the axle is rotatably secured, said axle being held against longitudinal displacement in the bearing members, said bearing members being mountedin the slots of the frame and having upper and lower grooves receiving the adjacent portions of the frame, said grooves being curved to conform to the contour of the frame, a pivoted vertical support disposed forward of the axle, connections between the axle bearing members and the vertical support, a guiding blade secured in a vertical position to the lower end of the vertical support in advance of the ground wheels.

4. In a combined plow and cultivator, the combination of ground wheels, an axle on which the ground wheels are mounted, a frame disposed between the ground wheels, bearings slidably mounted on opposite sides of the frame and receiving the axle, a support pivotally sustained with relation to the frame and held against movement trans- Copies of'thispatent niay be obtained for & 1,074,681

versely' and longitudinally of the frame, a vertical flat guide blade secured to the support in advance of the ground wheelsand presenting a narrow vertical edge to the ground, and laterally disposed swinging connections pivotally attached to the support and bearings and extending therebetween. p 7

5. In a combined plow and cultivator, the combination-of ground wheels, an axle on which the groundwheels are mounted, a frame disposed between the ground wheels, bearings slidably mounted on opposite sides of the frame and receiving the aXle,1a support pivotally sustained with relation to the bearings rotatably receiving the axle and slidably mounted in the guideway of the frame, said axle being fixed against longitudinal displacement and having its center coincident with center of: the arc of curvature of the guideway of the frame, a cross bar parallel with the'axle, rods extending between the bearings and the cross bar and pivoted thereto, a vertical bar slidable through the cross bar and pivotally sustamed, said vertical bar having rotatlng con:

nection' with the cross bar, and a vertical blade rigid on the lowerend of the: vertical bar. I l Q 7. In a combined plow and cultivator, the combination of ground wheels, an axle onwhich the wheels are mounted, a mainframe having its opposite sides curved, bearings mounted toslide on-the curved portions of the frame and receiving the axle which is heldagainst longitudinal displacement therein, a supplemented frame depending below the main frame and carrying ground treating implements, a horizontal pivoted member retained in parallel relationto the axle and pivotally connected'therewith, a

vertical bar rotatably sustained on which the horizontal member is 'mounted, and a 7 guiding blade rigidly fastened on thelower end of the vertical bar. 5

8. In a combined plow and cultivator, the combination of ground wheels, an "axle on which the wheels aremounted,aframe having :its opposite sides curved, bearings V mounted to slide on the curved portions of V the frame and receivin the axle which is held against longitudinal displacement therein, a horizontal pivotedmember re tained in parallel relation to the axle and pivotally connected therewith, a vertical bar rotatably sustained on which thefhorizontal member is mounted, and a guiding blade rig-; idly fastened on the lower end of the ver tical bar. q 1 ,7

In testimony whereof I have signed my name to this specification in the-presence'of two subscribing witnesses.

' l/Vitnesses: V

- J. T. MURRAY, R. BRUCKNER.

five cents each; by addressing the Gomznissionerof'Patents Washington, D. G. r

CORNEILOUS El woMBLE',

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