US895257A - Wheeled cultivator. - Google Patents

Description

PATENTED AUG. 4, 1908.

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W. s. GRAHAM. WHEELED CULTIVATOR.

APPLICATION FILED NOV.15, 1907.

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No. 395,257. 'I PATENTED AUG. 4, 1908.

w. s. GRAHAM.

WHEE ED OULTIVATOR.

APPLICATION FILED NOV. 15, 1907.

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WITNESSES I r r U IAVVENVIUIZ No. 895,257. I PATENTED AUG. 4, 190 8. W. s. GRAHAM.

WHEELED GULTIVATOR.

APPLICATION FILED NOV. 15, 1907.

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No; 895,257. PATENTED AUG.4, 1908.

W. s. GRAHAM. WHEELBD GULTIVATOR.

APPLICATION FILED NOV.15, 1907.

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W. s. GRAHAM.

WHEELED OULTIVATOR.

APPLIGATION FILED NOV. 15, 1907.

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INF 27.5 7812 UNITED STATES PATENT OFFICE.

WILLIAM S. GRAHAM, OF CANTON, ILLINOIS, ASSIGNOR TO PARLIN AND ORENDORFF COM- PANY, OF CANTON, ILLINOIS, A CORPORATION OF ILLINOIS.

WHEELED GULTIVATOR.

Specification of Letters Patent.

Patented Aug. 4, 1908.

- Application filed November 15, 1907. Serial No. 402,301.

To all whom it may concern:

Be it known that I, WILLIAM S. GRAHAM,

a citizen of the United States, residing at Canton, county of Fulton, State of Illinois, have invented certain new and useful Improvements in Wheeled Cultivators, of which the following is a specification, reference benig had to the accompanying drawings.

' My invention relates to wheeled cultivators, and particularly to the class of cultivators known as two-row cultivator-s, and one of its objects is to provide a new and improved machine in which the wheels may be angled and in which the arches may be either shifted laterally at the same time that the wheels are angled, or may be held in position to prevent lateral shifting while the wheels are independently angled.

Another object of the invention is to provide new and improved mechanism by which the wheels may be angled and by which the arches may be shifted laterally.

Another object of the invention is to pro vide improved mechanism for raising and lowering the gangs in pairs, or for raising and lowering them separately and independently of each other, and regulating the depth of cut of the plows upon each gang independently of the other.

Other objects of my invention are to improve wheeled cultivators in sundry details hereinafter pointed out.

In the drawings :Figure lis a side elevation of my machine with the right-hand wheel removed for clearness of illustration. Fig. 2 is a top or plan View. Fig. 3 is a front elevation. Fig. 4 is a top or plan view, showing the angling of the wheels, the other parts except those necessary to the operaation being left off for clearness of illustration. Fig. 5 is a vertical section through the spindle and part of one of the wheels. Fig.

6 is an enlarged detail, being a top or plan view of the foot-lever mechanism. Fig. 7 is an enlarged detail, being a side elevation of the foot-lever mechanism, with one of the supporting brackets on the side towards the point of view removed for clearness of illustration. Fig. 8 is a vertical cross-section on 'line 88 of Fig. 7 Fig. 9 is an enlarged detail, showing one of the inner pair of levers and connecting mechanism, showing the position in which the parts stand when the gangs are lowered for work. Fig. 10 is an enlarged detail, being a view of the same parts as in Fig. 9, showing the lever in the lowered position which it takes when the gangs are lifted. Fig. 11 is an enlarged detail, being a view of the same parts as shown in Fig.- 9, but seen from the other side, Fig. 12 is an enlarged detail, showing a portion of the lever shown in Fig. 9, and showing the balancing spring in its position when the gangs are lowered. Fig. 13 is a view of the same parts as those shown in Fig. 12 in the position which they assume when the gangs are raised. Fig. 14 is an enlarged detail, being a view of one of the brackets by which the wheel-angling and arch-shifting mechanism are supported.

Referring to the drawings, 2O indicate carrying wheels which are mounted on spindles 21 having vertical extensions 21 which are journaled in sleeves 22.

22 indicates brackets which are secured to or formed integral with the upper portions of the sleeves 22, and which are secured to the opposite ends of a rear crossbar 23 of the frame of the cultivator. 24 indicates the front crossbar. The front and rear crossbars 2324 are preferably formedof angleirons and are held together by two pairs of hounds 25 which are bolted or secured to the crossbars in any appropriate manner and which, with the crossbars, constitute the framework of the machine.

26 indicates tongues which are secured at their rear ends to the front crossbar 24 and extend forward between the forward ends of the pairs of hounds 25 to which they are bolted or otherwise secured.

27 indicates brace-rods which extend from the lower ends of the sleeves 22 to the front crossbar 241.

28 indicates arms which are rigidly secured to the upper ends of the vertical portions of the spindles 21 and extend forward therefrom.

29 indicates a crossbar which is pivotally connected at each end with the forward end of one of the arms 28.

30 indicates brackets which are secured to and extend downwardly from the rear crossbar 23 and are recessed on their inner opposing surfaces to receive a bearing sleeve 31 which is supported between them by means of a bolt 31 which passes through suitable openings in the lower ends of the brackets 30.

32 indicates notches in the lower ends of and engage a truss-rod 32*.

33 indicates arms which are provided with sleeve-hubs 33 by means of which they are rotatably mounted upon the sleeve 31 at each end thereof, the outer ends of the sleevehubs bearing against the inner surfaces of the brackets 30.

34 and 35 indicate links the rear ends of which are bent into hooks which rest in suitable openings in the upper ends of the arms 33.

36 indicates brackets which are formed integrally with or secured to the hubs 33 and extend rearwardly therefrom.

37 indicates foot-levers which are adjustably bolted to the brackets 36.

38 indicates a sleeve which is mounted upon the sleeve 31 between the inner ends of the sleeve-hubs 33 39 indicates a bracket (see Fig. 7) which is secured to the rear crossbar 23 and extends forward therefrom substantially midway between the arms 33.

40 indicates a strap which is pivotally connected with the lower end of the bracket 39 by a bolt 42 passing through the bracket.

41 indicates a brace which is pivotally con- I nected at its rear end by a bolt 42 with the upper portion of the bracket 39, and is bolted or otherwise secured at its forward end to the upper surface of the strap near the forward end thereof.

The forward end of the link 34 is bent at right angles and passes through an eye formed upon the forward end of the link 35 and through the strap 40 and crossbar 29 where it is held in position by a cotter-pin or any other suitable device.

The operation of the parts above described is as follows :WVhen the right-hand foot-lever is pushed downward, the right-hand arm 33 will be rocked. backward and the left-hand arm, through the connection of the links 34 and 35 be rocked forward, which will cause the strap 40 with the brace 41 to swing horizontally on a vertical pivot to the right, carrying with them the bar 29 also moving it to the right, swinging the arms 28 to the right and angling the wheels in the same direction to the position shown in Fig. 4. Of course a pressure of the foot upon the left-hand lever will then return the parts to the normal p osi tion, and, the parts being in the normal position, a pressure downward upon the lefthand foot-lever will swing the parts to the left and angle the wheels to the left.

43 indicates a pin extending upwards from the forward end of the strap 40.

44 indicates a strap which is pivoted at one end to the crossbar 24 and has a suitable opening at its other end. When it is desired, as in transporting the machine, to hold the wheels against any angling motion,

' the strap 44 is swung backwards and the opening in the free end thereof engaged with the pin 43 on the strap 40.

45 indicates arches to which cultivator gangs and shovels are attached as hereiuaft er described. two of these arches, and as they are alike in all of their parts and means of connection with the frame, a description of one will suffice for the description of both. These arches are mounted on the frame so as to move laterally longitudinally of the bars 23 and 24 in the manner hereinafter described.

46 indicates brackets which have downwardly-extending ends and which are secured to the horizontally-extending portions of the arches upon each side thereof near their outer ends.

47 indicates links which are bent at each end. The upper bent end of each link 47 extends through a suitable opening in the front crossbar 24 and is secured in any appropriate manner, as by a nut. The lower bent end of each link 47 passes through a suitable opening in the downwardly-extending bracket 46 and is appropriately secured therein, as by a nut.

48 indicates brace rods, the lower end of each of which is pivotally connected to the under side of one of the brackets 46. The brace rods 48 extend diagonally upwards and backwards and are pivotally secured at their upper ends to the hounds of the frame, at 49 (see Figs. 1 and 2).

50-51 (see Figs. 2, 9 and 10) indicate brackets which are clamped by means of U- bolts 50 to the sides of the arches 45 near the upper ends thereof. 52 indicates pins which. extend rearwardly from the brackets 50-51, upon which are journaled rollers 53. 54 indicates a track which is suitably secured to the crossbar 23 below the same, which forms a track upon which the rollers 53 travel. The arches and the lever mechanism hereinafter described are thus supported through the brackets 5051 by the rollers 53 upon the track 54.

55 indicates sleeves which are journaled upon the horizontal portions of the arch 45 in such a way as to swing about said journals as pivots but so as not to have any lateral inotion.

56 indicates gangs which are rigidly secured to the sleeves 55 and. carry plows or furrow-openers 57 of any well-known form or construction. are rigid with the arches in so far as any lateral motion is concerned, but can swing up and down upon their pivotal connections with the horizontal portions of the arch. for the purpose of raising and lowering the gangs as hereinafter described. In other words, they have a swing in a vertical plane, but are rigid against lateral swing.

58 (see Fig. 11) indicates a circular open ing in the bracket 50.

In the machine shown, there are It will be seen that the gangs 1 59 indicates a 'square rock-shaft whose inner end is rounded so as to be journaled in the opening 58, the other end of the rock-shaft having a bearing in a suitable opening near the upper rear end of the bracket 51 which is secured upon the outer side of the arch 45.

60 indicates an arc-shaped rabbet which is formed upon the bracket 50 near its upper end concentric with the opening 58, and which is provided with a number of notches 60 adapted to receive the outer end of a spring-bolt 61 which is mounted upon the segment 66 hereinafter described.

62 indicates a lug which is formed upon the bracket 50 and extends inwardly therefrom, that is, extends towards the opposite bracket 51,and is provided with a suitable opening through which extends a rod 63.

64 indicates a sleeve which is clamped between the brackets 50*51 by means of a bolt 65, and which acts as a brace for the brackets and keeps them properly spaced.

6667 indicate two segments which are clamped upon the squared portion of the rock-shaft 59.

68-69 indicate lock levers which are pivoted, respectively, to the segments 66-67. The levers 68-69 are provided each with a horizontallyextending hand-lever 66 67 provided with the usual spring bolt 68 69 which spring bolts engage respectively with the segments 66-67 to lock the levers thereon and which are operated by means of the usual hand-latches or in any other appropriate manner.

70 indicates links which are pivotally connected at their upper ends with the lower ends of the levers 6869 and are connected at their lower ends with the gangs by means of compression springs 71 which encircle the links 70 and are connected at their lower ends to the gangs 56 and have bearings at their upper ends against suitable lugs or shoulders on the links 70 so as to hold the gangs yieldingly against upward pressure.

As will be seen, the lever 68 connects with the inner gang 56 and the lever 69 with the outergang 56 on each arch. By the loosening of the latch-pin from its appropriate seg ment, it will be seen that the inner gang may be lifted by means of the lever 68 and the outer gang by means of the lever 69 each independently of the other. I have, however, provided devices by means of which the gangs may be lifted together. These devices are as follows :In addition to the horizontally-extending handle 66 the inner lever 68 is provided with a handle 72 and latch lever 73 pivoted at the base of the handle 72 above the horizontal handle 66 The spring-bolt 61 is slidingly mounted in a suitable recess in v the lower end of the segment 66 and is normally forced outwards by means of the spiral spring 61 surrounding the same.

74 indi cates a rod which connects the latch lever 73 pivotal axis of the lever 68.

with the upper end of the spring-pin 61 at a point in the same horizontal line with the When the spring bolt 61 is released from the notch 60 in the arc-shaped rabbet 60, the spring-bolt 68 being in engagement with the segment 66, if the lever 68 is swung backward, it will be evident that the segment 66 will be carried with it. As the segment 66 is clamped upon the squared portion of the rock-shaft 59, the shaft will be rocked and with it the other gang will be raised.

As is best shown in Figs. 9 to 13, inclusive, the rabbet 60 is provided with four notches 68 of which three are arranged near the lower part of the rabbet and the fourth only near the upper end. The notch in the upper end of the rabbet is to receive the spring-bolt when the gangs are raised and locked in their raised position, while the three lower notches permit the simultaneous setting of the gangs at different depths when the same are lowered to their work.

It will be obvious from the above description that by means of the parts above described the gangs may be raised or lowered either independently of each other or simultaneously.

75 indicates an arm which is clamped upon the rock-shaft 59 and is pivotally connected at its outer end with the upper end of the rod 63. The rod 63 is screw-threaded at its upper end, as is best shown in Figs. 12 and 13, and upon the screw-threaded end is screwed a nut 76.

77 indicates a spiral spring which is coiled about the rod 63 one end of the spring bear ing against the lug 62 and the other against the threaded nut 7 6. The pressure of the spring may be varied, of course, by varying the position of the threaded nut 76.

By reference to Fig. 12, it will be seen that when the parts are in the position shown in that figure, in which position, as has been said, the gangs are in working position, the

rod 63 and the rock-bar 75 are substantially in a straight line. The spring in this position, therefore, has no tendency to lift the weight of the gang. When the lifting levers are thrown backward, however, to raise the gangs, the force of the spring, tending to eX- pand, tends to force the arm 63 upward and thus tends to balance the weight of the gangs.

78 indicates a link which is pivotally connected at one end with the bracket 50 and is bent up at its other end so as to enter one of a series of suitable openings 79 in the bar 29 at one side of the center thereof.

80 indicates a crossbar which is rigidly connected with the inner rails of the hounds 25 and is provided with a series of suitable openings 81 upon each side adapted to receive the bent-up ends of the links 78.

82 indicates seat supports which are secured at their forward ends to the hounds 25,

and, passing over the rear crossbar 23, are provided with the usual seat 83 at their outer ends.

lVhen it is desired to swing the arches lat erally at the same time that the wheels are angled, the links 78 are connectedby means of one or the other of the openings 7 9 with the crossbar 29. When this bar is shifted, therefore, to the right or left, as the case may be, in the manner above described, it will be obvious that the arches 45 will be laterally moved in the same direction, the roller 53 rolling upon the track 54. When, however, it is not desired to move the arches laterally with the angling of the wheels, the ends of the bars 78 are disconnected from the crossbar 29 and are swung back and connected with one or another of the openings 81 of the crossbar 80. In this position it will be obvious that when the wheels are angled, the connection between the crossbar 29 and the arches being severed, the arches will not be moved, but will remain in the same position.

As best shown in Fig. 2, there are a number of openings 79 and 8.1 in order that by connecting the ends of the links with one or another of the openings the distance between the arches may be varied and adjusted to the different widths in the rows of corn.

What I claim as my invention and desire to secure by Letters Patent is 1. In a cultivator, the combination with a frame and a plurality of gangs adapted to swing vertically independently of each other, of a rock-shaft rotatably supported upon said frame, a plurality of levers adapted to swing independently of said rockshaft, a link connecting each of said levers with one of said gangs, locking means carried by each of said levers adapted to lock the same against movement independently of said rock-shaft, and means carried by one of said levers adapted to lock said rock-shaft in different positions against movement relative to said frame.

2. In a cultivator, the combination with a pair of gangs, a rock-shaft, a pair of levers adapted to swing independently of said ro ckshaft, and links connecting said levers each to a separate gang, of a pair of segments ail'iXed to said rock-shaft, means for locking each lever to its segment, an arm on one of said segments extending beyond. said rockshaft, an arc, and means for adjustably connecting said arm to said are.

3. In a cultivator, the combination with a pair of gangs adapted to swing vertically independently of one another, a rock-shaft, and a pair of segments fixed on said rock-shaft, of

a pair of levers pivoted one to each of said segments, a link connecting each of said levers to one of said gangs, spring dog mechanism adapted to lock each of said levers to its segment, an arm on one of said segments projecting beyond said rock-shaft. a fixed notched are, and spring dog mechanism on. said arm adapted to lock said arm to said notched are.

4. In a cultivator, the combination with a frame, an arch supported by said frame and laterally movable thereon and a plurality of gangs pivotally mounted. thereon, of a rocle shaft carried by said arch, a plurality of segments rigid on said rock-shaft, a lever pivotally connected with each. of said segments, means for locking each of said levers against movement relative to its segment, and. means connecting each of said levers with a dill'cnnnt one of said gangs for raising and lowering the same.

5. In a cultivator, the combination with a frame, an arch supported by said frame and laterally movable thereon and a plurality of gangs carried thereby, of a rock-shaft journaled in said arch, a plurality of segments rigid on said rock-shaft, a lever pivotally connected with each of said segments, means for locking each of said levers against movement relative to its segment, means for adj ustably locking one of said segments against movement relative to said frame, and means connecting each of said levers with. a different one of said gangs for raising and lowering it.

6. I11 a cultivator, the combination with a frame, and a plurality of gangs carried thereby, of a rock-shaft rotatably supported by said frame, a plurality of toothed segments rigid on said rock-shaft, a lever pivotally connected with each of said segments, a spring-bolt carried by each lever adapted to engage said teeth to lock said lever against movement relative to said segment, notches on said frame, a spring-bolt carried by one of said segments adapted to engage said notches to lock said segment against movement relative to said frame, and means connecting each of said levers with a different one of said gangs for raising and lowering it.

7. In a cultivator, the combination \vitl 1. a frame, and a plurality of gangs carried thereby, of a rock-shaft rotatably supported by said frame, a plurality of toothed. segments rigid 011 said rock-shaft, a lever pivotally connected with each of said segments, a spring-bolt carried by each lever adapted to engage said teeth to lock said lever against movement relative to said segment, means carried by each of said levers for disengaging its spring-bolt, notches on. said frame, a spring-bolt carried by one of said. segments adapted to engage said notches to lock said. segment against movement relative to said. frame, means carried by the lever pivoted on said last-named segment for disengaging the spring-bolt carried by said segment, and means connecting each of said levers with. a different one of said gangs for raising and. lowering it.

8. In a cultivator, the combination with a frame and wheels supporting said frame, of an arch laterally movable in said frame, an anti-friction device interposed between the upper portion of said arch and said frame and supporting said arch on said frame,

' links pivotally connecting the lower ends of frame and wheels supporting said frame, of a track secured to said frame, a roller mounted on the upper portion of said arch and adapted to run upon said track, links pivotally connecting the lower ends of said arch with said frame forward of said track, and braces pivotally connected at their lower ends with the lower ends of said arch and at their upper ends with said frame to the rear of said arch.

10. In a cultivator, the combination with a frame, of, arches movable laterally therein, gangs connected with said arches and movable up and down but rigid against lateral movement relative to said arches, mechanism for shifting said arches laterally, and means adapted to connect said arches with said shifting mechanism or with the frame at any one of'a plurality of points whereby the distance between said arches may be varied.

11. In a cultivator, the combination with a frame, of arches movable laterally therein, gangs connected with said arches and movable up and down but rigid against lateral movement relative to said arches, mechanism for shifting said arches laterally, and a link for each arch adapted to have oneend secured in an opening in said arch and to have its other end secured in any one of a plurality of openings in said frame or in said shifting mechanism.

12. In a cultivator, the combination with a frame, wheels movable angularly relatively thereto, a crossbar movable laterally of the frame, means for shifting said crossbar, and connections between said crossbar and said wheels whereby said wheels are angled by the lateral movement of the crossbar, of arches movable laterally of the frame, gangs connected with said arches and movable up and down but rigid against lateral movement relative to said arches, and links adapted to connect said arches either with said wheel-angling mechanism or with said frame.

13. In a cult vator, the combination with a frame, and wheels movable angularly relatively thereto, of a horizontally-swinging lever, two links pivotally connected to said horizontally -swinging lever and diverging therefrom one on each side thereof, bellcrank levers each pivotally connected with said frame, one lever being provided at each side of said horizontally-swinging lever, treads upon the horizontal arms of said levers, the vertical arm of each lever being connected with the adjacent link, a cross-bar pivotally connected with said horizontally-swinging lever, and connections between said crossbar and said wheels whereby said wheels are adapted to be angled.

14. In a cultivator, the combination with a frame, wheels, spindles carrying said wheels and having vertical portions journaled in said frame, arms secured to said spindles, a crossbar connectingsaid arms, an arch move able laterally of the frame, and gangs connected with said arch and rigid against lateral motion relative thereto of a horizontally-swinging lever pivotally connected at one end with said crossbar, two links pivotally, connected to said horizontally-swinging lever and diver ing therefrom one on each side thereof, bellcrank levers each pivotally connected with said frame, one lever being provided at each side of said horizontallyswinging lever, treads upon the horizontal arms of said levers, the vertical arm of each lever being connected with the adjacent link, and connections between said crossbar and said arch whereby said wheels are adapted to be angled and said arch is adapted to be shifted.

WILLIAM S. GRAHAM. Witnesses C. H. WASON, HARRY L. Forms.

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