US1253993A - Cultivator. - Google Patents

Description

C. T. RAY.

Patented Jan. 15, 1918.

3 SHEETS-SHEET C. T. RAY.

CULTIVATOR.

APPLICATION FILED JUNE 20, 1912.

Patented Jan.15,1918.

3 SHEETS-SHEET 2.

c. T. RAY.

CULTIVATOR.

APPLICATION FILED JUNE 20, I912.

Patented Jan. 15, 1918. 7

3 SHEETS-SHEET 3.

III/I I'IIIIIIII' w M 0 m IIIIIIII IIIIIIIII struction and correlation of parts substan-- UNITED STATES ra'run'r caries.

CHARLES T RAY, 0F LOUISVILLE, KENTUCKY, ASSIGNOR TO B. F. AVERY 85 SONS, OF LOUISVILLE, KENTUCKY, A CORPORATION OF KENTUCKY.

CULTIVATOR.

Specification of Letters Patent. Patented J an. 15, 1918.

Application filed June 20, 1912. Serial No. 704,782.

which the following is a specification.

This invention relates to improvements in soil tillage implements and particularly to cultivator-s of the straddle-row type, and it consists in various novel features of the contially as hereinafter described and particularly pointed out in the subjoined claims: whereby the tillage elements may be readily and quickly adjusted to meet widely varying and a maximum number of different conditions in respect of their relative positions and their number.

In the accompanying drawings, the at present preferred detail embodiments of the several parts forming the present invention are illustrated, but it is to be understood that these detail embodiments are merely exemplary of means now considered to be best adapted to carry the purposes of the invention into practical effect, and that other detail embodiments than those illustrated and hereinafter described may be resorted to.

In the drawings Figure 1 is a perspective view of said preferred embodiment of the invention.

Fig. 2 is a plan view of the same.

Fig. 3 is a rear end view, with some parts in elevation while others are broken away, and still others are in section.

Fig. 4 is a detail section on the line 1- 1 of Fig. 2.

Fig. 5 is a detail section on the line 5-5 of Fig. 4, through only the beam and sleeve, the rear end of the coupling being omitted.

Fig. 6 is a detail sectional view on the line (3-6 of Fig. 2.

Fig. 7 is a detail plan view of the saddle, casting and Fig. 8 is a detail of the axle collar.

Fig. 9 is a sectional detail view of the cross head.

Like characters of reference denote like parts in the several views.

The illustrated embodiment of the invention will be described somewhat restrictively in detail, but it is not intended thereby to limit the parts to the restrictively-described forms thereof, the parts being particularly described only in order that the best form of the invention may be disclosed, other forms and arrangements of parts being within the scope of the invention, and in a measure at least, capable of carrying the purposes into practical effect.

To a saddle A, hereinafter described, on the underside of the beam B the inwardly extending ends 10, 10 of the arch members 11, 11 of the axle are connected in such manner as to permit said members conveniently to be adjusted relatively to each other and fixedly held in their adjusted position, the adjustment referred to serving to vary the distance between the carrying wheels C C which are mounted on outwardly-extending extremities 12, 12 of the axle, as usual. From their said outwardly-extending extremities each axle member extends forwardlv as shown at 18 and thence inwardly, as shown at 1 1, to the lower end of its arch member 11.

Top and bottom evener arches, marked D and D respectively, are suitably secured as shown at 14 to the upper and under sides of the beam B, and between the depending sides of these arches evener members E and E are pivoted, as shown at 15. The upper ends of the evener members are connected by links 16, 16 to opposite ends of a cross plate 17 which is pivoted at 17 to the beam B. Diagonal braces 18, 18 whose forward ends are arranged between the evener arches and are suitably secured to the bottom arch D at 19, 19, extend from said arches back to the beam B, to which their rear ends are suitably secured at 20.

F and F designate the gang beams. Couplings G G are secured to the front ends of these beams and project forwardly therefrom. The forward end of each of these couplings is provided with upper and lower arms 21 and 22 arranged respectively above and below the portion 14 of the corresponding axle member. One of the arms, as 21, of each coupling has a socket 23 Wh1Ch lS tapered for a portion of its length, (see Fig. t), while the other arm of each coupling has a tapered opening 24 within which there is fitted a hollow externally-tapered plug 25 which for a portion of its length is internally tapered in a direction the reverse of the taper of the socket 23, said internally tapered portion of the plug forming a socket 26'. Upon the portions 14: ,of the axle members are sleeves having openings 28 alined with the sockets 23 and 26 of the respective couplings. 29 (Fig. 4) designates a hollow post. There is one such post for each beam, and .each post has tapered ends. -The tapered ends of one of these posts are seated in the sockets 23 and 26 of coupling G, and the tapered ends of the other are seated in like sockets of the coupling, G. means, (as bolts 30, extending through the hollow posts 29 and plugs 25 and to the outer surfaces of the arms 21, 22) hold the parts together.

The plugs 25, containing the sockets 26, being reniovably fitted to openings in the couplings, permit the parts to .be readily assembled and taken apart, and the tapered surfaces of the posts and sockets afiord adequate provision for the taking up of wear. lreferably, one end of each plug protrudes, as shown at 25, from the arm 22 of its coupling and this protruding part is of suitable form, as square, .to engage an appropriate tool for inserting it into or removing it from the opening 24.

The posts 29, are respectively connected to members 11 of .the axle through the me dium of sleeves 27, having openings 28, through which the posts extend.

Accordingly, it will be seen that the couplingsf G 'are freely movable pivotally at their front ends on substantially vertical axes. 0. around the posts 29, respectively and that the gang beams F, F partake of this anoveinent. In other words, the beams are mounted to have free swinging i'novement on substantially vertical axes arranged in advance of their forward ends.

Provision also is made for a relative adjustment vertically of the sleeves 27 and the posts 29, this adjustment varying the height of the forward ends of the beams which, as already-shown, are connected with the posts through the medium of the couplings. To .thisend, each of thesleeves. 2-7 is provided rearwardof its opening 28 with flanges 31 which form rearwardly projecting lips .on opposite sides of the adjacent post 29, and suitable means, as bolts extending through openings 3 1 in .the lips or flanges and having appropriate nuts, are employed to draw the lips or flanges .to gether and hold them, .to thereby clamp the sleeves and ,posts together; Qbviously,,when the nuts on the bolts 33 have been slackened, the clamping effect referred to will cease, andga relativeadjustment.of the beams and sleeves may then be effected, which will vary the height of the forward endsof the beams Suitable with reference to the ground and hence vary the depth of penetration of the tillage ments on the beams. I

In the form of the invention herein exemplified the axle comprises, as already stated, two arch members 11, from the lower ends of which members. 1& extend outwardly to other members 13 which have, at their ends opposite the members 11, lateral projections 12 upon which the wheels C, C are rotatably mounted. struction enables the wheels C, C to be moved forward or back relatively to the beam 13, primarily for balancing purposes, as willbe well ui-iderstood. the movement .of the wheels forward from or rearwardtoward the positions shown in Fig. 1, the axle portions 13 move forward or rearward as the case may be, pivotally on an arc struck from the axle portions 14. In this movement the portions 11 move pivotally in the sleeves 27 and are raised or lowered bodily, according to whether the movement of theportions 13 is forward or rearwardf If at this time, the sleeves be clamped to the posts 29, the latter, and consequently the front ends of the beams F also, will be raised or lowered: and if this raising or lowering of the beams be not desired, then the bolts 33 should be slackened, in which event the sleeves 27 may move, with the axle portions 1 1, up or down upon the posts 29, if at this time the front ends of the beams be otherwise supported, as by the elehands for example. Of course, the posts 29 may be raised or lowered in the sleeves 27 whenever this is necessary or expedient in the adjustment of the front ends of the beams to predetermined height from the ground. It is not essential to the invention that the axle comprise the portions 13.

This particular con-.

It will be noted that in The sleeves 27 are preferably open along their forward longitudinal sides for convenience 1n inserting them upon and removing them from vtheaxle membersthe mentbers 14, for exa1nple,to which they are applied: and they are providedwith blocks which are iusertedbetween their upper and lower members and are suitably secured in place, as by the bolts 36 for example. These blocks have concave inner surfaces to conform to the surfaces of the axle portions which. theyengage. This construction provides for pivotal movementof the axle within the sleeves and also enables the sleeves to be most conveniently and quickly mounted upon said axlerportions. Preferably, the blocks are spaced apart and arranged at the ends of the sleeves, and preferably also the upper and lower members'of the sleeves are reduced in Width between said blocks, to lighten the structure. The sleeves are also provided with downwardly and rearwardly extendingarms 37, to which the lower ends of springs H, H are secured, the upper ends Car of said springs being attached to threaded rods by which they are connected to brackets H clamped to, the portions 11 of the axlemembers, the said rods being adjustable with relation to the brackets to thereby adjust the tension of the springs and being maintained in their adjusted positions by nuts h on the threaded ends of the rods. These springs yieldably support the gangs.

I, I designate clevises whose rear ends are related to the couplings G, G respectively, so that they may be adjusted upon substantially vertical axes with relation to said couplings and held in adjusted position. In the herein-exemplified form of the invention each clevis has rearwardly extending arms 38 and 39. These arms are arranged, respectively, above and below the adjacent sleeve 27, between the latter and the arms 21 and of the adjacent coupling, and are pivotally mounted on the adjacent post 29. The clevises after being adjusted are fixedly secured to the couplings by suitable devices. as, for example, the bolts 40 extending through. laterally elongated slots a1 formed in the upper arms 21 of the couplings. The forward ends of the clevises I, I are connectedby draft rods 42, d2 with other clevises I, I having means whereby the forward ends of the draft rods are adjustable side wise independently of their rear ends. The clevises I, I are-carried by the evener arches D, D, being preferably secured to the lower evener arches D, D by the securing devices at 15 and 19, hereinbefore mentioned. 'For the described side wise adjust ment of the forward ends of the draft rods each clevis I, I is preferably provided with a series of spaced apertures 43 and the forward ends of the draft rods 42, 42 are preferably turned down as shown at e2 42 to enter any one of said apertures and to be readily removable therefrom.

It will be noted that when the clevises I, I and draft rods 42, 42 are in the position shown in Fig. 2, the line of draft will be such as to make the gang beams Work parallel to each other, the draft rods being in direct line with the longitudinal axis of said beams and that the beams may be thrown into extreme in or out position, or to predetermined intermediate positions by proper adjustment of the rear clevises I I and forward ends of the draft rods in the front I clevises I I; and that the provision for independent lateral adjustment of both the rear clevises andthe forward ends of the draft rods permits of a very wide range of adjustment of the beams relatively to each other, the arrangement also being such that the beams may be fixed in any one of a number of positions between the extremes of their adjustment. Thus, assuming that the beams are to be set in their extreme positions toward each other, the'clevises I I are adjusted to the extreme inner positions defined by the inner ends of the slots ll and the outer ends of the draft rods are inserted in the apertures at the outer ends of the clevises I while if it is desired that the beams shall occupy'their extreme outer positions of adjustment, the clevises I I are adjusted to positions defined by the outer ends of the slots 41 and the ends of the draft rods are inserted in the apertures at the inner ends of the clevises I I, and by varying laterally either the positions of the clevises I I or the positions of the forward ends of the draft rods, or of both the clevises I I and front ends of the draft rods, the beams will be caused to swing relatively to each other in a direction according with the direction and such adjustment and to an extent determined in part by the extent of such adjustment and in part by whether the adjustment is of both the rear clevises and the front ends of the draft rods or is of the rear clevises or front ends of the draft rods, only. Moreover, it will be noted that the clevises I I are adjustable independently of each other and that the draft rods are adjustable independently of each other, whereby the beams are independently adjustable on their vertical axes whereby either may be set to work in any position within the extremes of its adjustment without requiring that the other shall be set in a like or corresponding position, it being expedient in some cases to work with one beam in its outward position of adjustment while the other occupies some other position, for example.

Each gang beam F, F is preferably hollow and of square or other suitable polygonal form in cross section. Their forward ends are provided with sleeves f, f, which are externally round and internally of shape.

conforming to the external shape of the beams. These sleeves are interposed between the beams and gang couplings G, G, and may be turned axially in the couplings, and hence it follows that the square beams, which are fixed to the sleeves,may be turned axially with relation to said couplings. Preferably each sleeve, as most clearly shown in Figs. 4, and 5, is formed of two complementary members 44 and 4:5 having flanges 4.4 and 45 at their forward ends and provided internally with projections 46. The projections a6 enter recesses 47 in the beams and hold the sleeves against turning upon the beams. Thecouplings G, G are mounted on said sleeves and for this purpose they are provided rearwardly of their bifurcated forward ends with tubular portions 48 which preferably are split longitudinally for convcnience in mounting them upon the sleeves f, said portions 48 having suitable provision, such, for example, as the ears 49 and bolts 50, for clamping their sections to-' gether tightly around the sleeves. The

Cir

flanges 4st and 45 of the sleeve-sections engage the surfaces of the couplings within the bifurcated portions of the latter, and prevent longitudinal displacement of the sleeves, in one direction. Longitudinal displacement of the sleeves in the opposite direction may be prevented by forming the rear ends of the members 1 1 with lugs 51 to engage the rear ends of the couplings.

The rear ends of the gang beams are provided with couplings J, J whose forward ends, 52, are fixedly secured thereto, said forward ends being preferably split longitudinally and drawn tightly to place around the beam by suitable devices, as, for example bolts 53, as shown. The rear ends of these couplings are'bifurcated, each having upper and lower arms 5% and 55. Between these arms of each coupling J J a cross head is pivotally mounted. These cross heads are marked K, K. As clearly shown at the left hand side of Fig. 3, it being understood that the corresponding portions shown in elevation at the right hand side in said figure are of like construction, the upper arms 5 1 of the couplings J, J have conical sockets 55 like those of the upper ends of the front couplings, while the lower arms 55 have tapered openings 56 provided with removable internally and. externally tapered hollow plugs 57 with protruding squared ends 57 similar to the openings 24 and pivot bearings 25 of the front couplings. The sockets 55 and plugs 57 form bearings for projections 58 and 59 which extend upwardly and downwardly from the cross heads and have conical ends which are seated in said sockets and plugs, said projections thereby forming pivots by which the cross heads may be swung on vertical axes within the rear couplings. These pivots preferably are hollow and suitable devices as bolts, 60, for example extend through the same and hold the parts to gether, this formation also providing for the taking up of wear in the contacting surfaces while. the removable plugs permit of easy assemblage.

At one end of each cross head K, K there are two chambers 65 and 66 which are open at top and bottom. Each of these chambers wider at one side than the other, the wider side of one being adjacent to the narrower side of the other, as shown clearly in Fig. 2. The division wall between these chambers is also divided transversely of the cross head by apertures 67 and .68 (as shown at the left hand side of Fig. 3) which pass through the sides of the cross head, as shown at 67 a and 68 at the right hand side of Fig. 3. Preferably, the division wall referred to is formed by. three spaced cross ribs, 69, which extend diagonally and are arranged one above another, the spaces between the ribs registering with the openings 67 and 68 at the opposite sides of the cross head. Either of the chainbers 65, 66 is adapted to receive a staiidard 61 having a suitable soil treating element, as the shovel 62, for example, and either of said chambers is likewise adapted to receive a block 70 having an inclined surface, the standard being mounted in one chamber and the block in the other chamber. Provision for adjusting the standard and its soil treating element longitudinally of the crosshead-i. e. transversely of the implementis thereby made. Wedge keys 71, (Figs. 2 and 3) each of which has a tapered face 71 correspondin w to the taper. of the blocks and a plane face 71' corresponding to, the plane surface of the standards, are inserted through either of the openings 67 and 68 and extend through the apertures 67 and 68, the tapered surfaces of the keys engaging the tapered surfaces of the blocks and the plane surfaces of the keys engaging the plane surfaces of the standards, said keys in conjunction with the blocks thereby effectively holding the standards in adjusted position, while permitting the latter readily to be adjusted vertically within or wholly removed from the chambers.

Each of the wedge keys 71 preferably has a threaded outer end 71, Fig. 2, which receives a nut 72. The nuts are against'the cross heads and by turning them the wedge keys may be drawn to place or slackened.

The other end of each cross head has a cylindrical split socket 74 the opening through which extends in the general direction of the length of the machine. This socket is provided with a longitudinally-divided sleeve formed of complementary members 7 5, 75 shown in detail in Fig. 3 formed to provide an internal angular opening to receive the forward end of an extension arm 63, which is removable therefrom and adjustable longitudinally therein, and is held in position by suitable means such, for instance, as clamping bolts 74* extending through lips or flanges 76 of the socket. The sleeve formed by said members 75, 75 is externally round and the socket 74 is internally of like shape, whereby said sleeve may be turned within the socket to thereby pivotally adjust the standard sidewise.

Removable from and longitudinally adjustable upon the extension arms 63 are standard brackets L, L. Each of these brackets, as shown in Figs. 1 and 6, has a longitudinal opening 77 through which the extension arm 63 extends, a chamber 78 through which the standard 61 extends and a chamber 79 for a wedge key 80. The chamber 78 is inclined to the vertical to hold the standard at a corresponding-inclination, as best shown in Fig. 1, and is arranged on one side of the opening 77 while the cham ber7 9 is of tapered conformation and is on the other side of the opening 77. The wedge block 80 and a set screw 81 serve to clamp the extension armsand standards in their adjusted positions. In the herein exemplitied arrangement the wedge blocks engage the extension arms while the set screws engage the standards, but this position of the parts may be reversed, as is obvious.

Provision is also made for a removable standard 85 at the center of each cross head, each standard having a shovel 62 or other suitable soil treating element. In the exemplified arrangement the cross head is provided with a rearwardly-extending lug 82 having upper and lower lips or flanges 83 and the cross head has lips or flanges 84 at its top and bottom adjacent to the forward ends of thefianges 88. The standard 85 has a forwardly extending end which-lies alongside the lug 82, within the space between the lips or flanges 83 and projects into the space between the lips or flanges 84, being held from vertical displacement by said flanges. Suitable means, such as a bolt 86 extends through the lug 82 and forwardly extending end of the standard and secures these parts together.

87 designates parallel rods Whose front ends are attached to rearward projections 88 from the sleeves 27 and whose rear ends are pivotally attached by knuckles 89 to lugs 90 projecting from .the cross head. I

The rear ends of the upper arms 54: of the rear gang couplings J, J are preferably formed with circular plates 91, which form members of dial couplings foradjustably connecting the handles M pivotally to the arms 54;, the other members of the dial couplings being designated 92. Such connections are old and well known and need not be further referred to particularly, as they form no essential part of the invention.

. The saddle A for the axle is a casting having two openings 93 and 94 extending cross wise of the beam B (see Fig. 1). These openings form bearings for the portions 10, -10 of the axle members, respectively. Each of these bearings has at one of its ends a chamber 95 (see Fig. 7) with inner and outer walls 96 and 97 and each axle member 10 is provided with a collar 98 (Fig. 1) which is secured thereto by suitable means, as a set screw 99, for example. These collars respectively fit in the chambers 95 and eoactwith the walls 96 and 97 of the latter a to prevent accidental movement of the axle ment, and draft means. connected to the beam, the draft means including an intermediate member whose front and rear ends are adjustable laterally relatively to each other and to the beam and are maintained against accidental displacement from their adjusted positions.

2. A soil tillage implement comprising beams for supporting the tillage elements, and mounted to have independent lateral pivotal movement, and draft means including intermediate elements respectively having connection with the beams and whose front and rear ends are adjustable laterally relatively to each other and to the beams and are maintained against accidental displacement from their adjusted positions.

3. A soil tillage implement comprising beams for supporting the tillage elements, and mounted for lateral pivotal movement, and draft means comprising rear clevises having connection with the beams, front clevises, and intermediate members respectively connecting the front clevises with the rear clevises, the clevises being adapted to permit the front and rear ends of the intermediate members to be adjusted laterally relatively to each other and to the beams and to be held against accidental displacement from their adjusted positions.

4. A soil tillage implement, comprising beams for supporting the tillage elements, and mounted for lateral pivotal movement, and draft means including sets of front and rear clevises and intermediate members, the rear clevises having connection with the beams and each intermediate member connecting a front clevis with the corresponding rear clevis, one clevis of each set being mounted for pivotal adjustment on a substantially vertical axis and having means for fixedly securing it in its adjusted position with relation to the beam and the other clevis having means whereby the adjacent end of the intermediate member is adjustand the beams including means by which the rear clevises are secured fixedly in adjusted position.

6. A soil tillage implement comprising beams for supporting'the tillage elements,

.and having their forward ends provided with couplings which are mounted for pivotal movement laterally, laterally adjustable clevises connected to said couplings and having means for fixedly securing them in adjusted position, intermediate members whose rear ends are connected to said clevises and are thereby adjustable laterally with reference to the. beams, and clevises to which the forward ends ofthe intermediate members respectively are connected, the last named clevises being adapted to permit lateral adjustment of the forward ends of the intermediate members independently of the lateral adjustment of the rear ends of the same.

7. A soil tillage implement comprising beams for supporting the tillage elements, and having their forward ends provided with couplings which are mounted for pivotal movement laterally and have parts projecting forward of their axes, clevises mounted for lateral pivotal adjustment rela-' tively to said couplings, means for fixing the clevises to the forwardly projecting parts of the couplings, draft elements whose rear ends are carried by said clevises and are thereby adjustable laterally with reference to the beams, and clevises to which the for ward ends of the draft elements respectively are connected, the last named clevises being adapted 'to permit lateral adjustment of the forward ends of the draft elements independently of the rear ends of the same, the

forward ends of the draft elements and the forward clevises beingfoperatively related to hold the former in adjusted positions.

8. A soil tillage implement, comprising beams for supporting the tillage elements, and having their forward ends provided with couplings which i are mounted for pivotal movement laterally and have parts projecting forward of their axes, clevises mounted for lateral pivotaladjustment relatively to said couplings, "means for fixing the clevises to the forwardly projecting parts of the couplings, draft eleinentswhose rear ends are carried by said clevises and are thereby adjustable laterally with i-e'fei'ence to the beams, and clevises to which thefor- Ward ends of the'di-a ft elements respectively are connected, the last named clevises each having a series of apertures severally adapted to receive the ends of the-adjacent draft element and to permit lateral adj'ustment of thefofrw'ard end of said element 'polefa "pair of clevises supported from the 69 pole, draft eleinents whose forward ends are operatively related to said clevises,"respectively, said clevises being adapted to permit lateral adjustment of tlie' forward ends of the draft elements, pivotally movable beams for supporting the tillage elements, and conpole, a pair of clevises supported from the pole, draft elements whose 'iorward ends are o-pei'atii el'y related to said clevises, respec 'tiv-ely, said clevises being adapted'to permit lateral adjustment of the forward ends of the draft elements, beamsfor supporting the tillage elements, and connections between the beams and the rear ends of the draft elements, said connections including co'uplings secured to the forward ends of the beams and mounted 'for lateral pivotal movement and clevises'which are mounted for lateral pivotal adjustment relatively to the couplings and are provided with means for fixing them in adjusted positions to said couplings, the rear ends of the draft elements being'cdn-nected to tlielast-mentioned clevises.

11. A soil tillage implement comprising a pole, clevises carried from the pole, each of said clevises having a pluralityrof apertures arranged in different vertical planes, beams respectively arranged 'rea'rw-arcl of said clevises, said beams being adapted "to carry til-lageelein'ents and having their forward ends mounted for lateral pivotal movement, and draft elements whose rear ends are respectively connected to said beams, the connection embodying means by'which the rear forward ends of said draft elements engaging the first mentioned clevises, respec tively, and being adjustable from one a pe rture tofianotherthereof.

12. A soil tillage implement comprising a pole, supports depending from opposite sides thereof, clevises carried by th'e dependingpo'rtions of "the supports, each of said clevises havinga plurality of apertures arranged in difi'erentfve'rticalplanes, beams i-espect'ively arranged rearward of said clevises, said beams being adapted to carry tilla'ge elements andhaving their foiwvaidends mounted for "lateral'pi-votal movement,-draft elements, and connections between the rear ends of the draft elements and the beams, the connection embodying clevises which are mounted for pivotal adjustment on substantially vertical axe's -and are provided with means ior' fixnig them in ad usted posiv tion, the forward ends o'f sai'd -d'ra ft :eleme'nts engaging the first mentioned clevises, respectively, and being ad ustable from one aperture to another thereof.

13. A soil tillage implement comprising a beam, a coupling secured thereto and projecting forward thereof, an approximately vertical pivot for the coupling, a clevis mounted for ivotal adjustment on a substantially vertical axis, means for fixing the clevis in its adjusted position with relation to the coupling, and a draft element connected to said clevis.

14. A soil tillage implement comprising a beam, a coupling secured thereto and projecting forward thereof, a clevis, means whereby the clevis and coupling are relatively movable on a substantially vertical common axis, means for connecting the clevis and coupling fixedly together when thus adjusted, and a draft element connected to the clevis.

15. A soil tillage implement comprising a beam'for supporting a tillage element, said beam being mounted for movement upon substantially vertical axes and draft means, comprising forward and rear clevises and an intermediate member connecting the clevises, the rear clevis being mounted for lateral pivotal adjustment relative to the beam and means for securing it in adjusted position.

16. A soil tillage implement comprising a beam, a coupling secured thereto and projecting forward thereof, an approximately vertical pivot for the coupling, the coupling having a member which extends forward of the pivot, a clevis mounted for pivotal adjustment laterally around said pivot and contiguous to said member, means for securing the clevis in adjusted position to said member, and a draft element connected to said clevis.

17 A soil tillage implement comprising a beam provided with a coupling, an approximately vertical pivot for the coupling, a

clevis mounted for adjustment around said pivot relatively to the coupling, the coupling and clevis having juxtaposed members one of which is provided with a fastening means and the other with an arcual slot into which the fastening means extends, and a draft element connected to said clevis.

18. A soil tillage implement comprising a beam, a coupling secured thereto and provided with forwardly extending arms with a space between, an approximately vertical pii'ot for the coupling arranged between said arms, one of the arms extending forward of the pivot and having an arcual opening extending transversely of the implement, a clevis arranged contiguous to said arms and mounted for pivotal adjustment laterally around said pivot, means for fastening the clevis in its adjusted position to the forwardly extending portion of the arm of the couplin said means including an element which extends through said arcual opening, and draft mechanism connected to said clevis.

19. A soil tillage implement comprising carrying wheels, an axle, beams adapted to carry tillage elements, couplings carried by said beams, connections between the couplings and the axle, and draft mechanism having connection with the couplings, the connections between the couplings and the axle including members which are open along their forward edges and spaced vertical rearwardly projecting portions, the forward members receiving the axles between them and being provided with elements which are separate therefrom and coujointly therewith form sleeves which are mounted on the axle, approximately vertical pivots for the couplings extending between the rearwardly projecting portions of sleeve members, said sleeves and pivots being relatively adjustable in the direction of the length of the pivots, and means for securing them when adjusted.

20. A soil tillage implement, comprising carrying wheels, an axle, sleeves mounted on said axle and each having members projecting therefrom and provided with an approximately vertical space between them, beams adapted to carry tillage elements, couplings projecting forward from said beams, stationary pivots for said couplings, extending through the space between members of said sleeves, the pivots and sleeves being relatively adjustable in the direction of the length of the pivots, fastening means adapt ed to clamp the sleeve members tightly around the pivots, and draft mechanism having connection with said couplings.

21. A soil tillage implement, comprising carrying wheels, an axle, sleeves mounted on said axle and having spaced members projecting therefrom, beams adapted to carry tillage elements, couplings projecting forward from said beams and having spaced arms provided with bearings, pivots extending between the members of the sleeves and having their ends engaged with the bearings in the coupling arms, and means whereby the members of the sleeves are fixed with relation to said pivots, and draft mechanism having connection with said couplings.

22. A soil tillage implement, comprising carrying wheels, an axle, sleeves mounted on said axle and having spaced members projecting therefrom, beams adapted to carry tillage elements, couplings projecting forward from said beams and having spaced arms provided with internally tapered sockets alined with the spaces between the members of the sleeves, one socket of each coupling being removable, pivots extending between the members of the sleeves and comprising sleeves having tapered ends seated in the pivot sockets and bolts extending through said sleeves and arms, and means whereby the first-mentioned sleeves are fixed with relation to said pivots, and draft mechanism having connection with said couplings.

A soil tillage implen'ient comprising carrying wheels, an axle, sleeves mounted on said axle and having spaced members pro-7 through the spaces between the members .of

the sleeves and comprising sleeves having tapered ends seated in said sockets, and bolts extending through the pivots sleeves and arms the projecting members of the first mentioned sleeves being divided on lines which intersect their said openings, fastening means for clamping the walls of the first-mentioned sleeve members fixedly around the sleeves of the pivots, and draft mechanism having connection with said couplings.

A soil tillage implement comprising carrying wheels, an axle, beams adapted to carry tillage elements, couplings carried by said :beams, said couplings having upper-and lower arms, spaced apart, clevises adjacent to said couplings, the clevises being pivotally adjustable on approximately vertical axes relatively to the couplings, sleeves mounted on the axle, approximately vertical pivots for said couplings, means for fixedly securing said sleeves to the pivots, and draft elements connected to said clevises.

25. A soil tillage implement comprising carrying wheels, an axle, beams adapted to carry tillage elements, couplings carried by said beams, said couplings having upper and lower arms, clevises adjacent to said couplings, the clevises being pivotally adjustableon approximately vertical axes relatively to said couplings and provided with means for fixedly securing them in adjusted Copies ofthis patent may be obtained for positions, sleeves mounted on the axle and having rearwardly pro ect ng spaced mem bers a) roximatelvertical I ivots extendi-ng between said sleeve members, the arms of the couplings having bearings which engage the ends of the pivots and the couplings being thereby movable .on approximately vertical axes around said pivots, means for securing the rearwardly projecting members of the sleeves to the pivots, and draft elements connected to said clevises.

26. In a tillage implement, a beam having a coupling connected toone of its ends, said coupling having upper and lower arms, a clevis, means by which the coupling and clevis are relatively movable pivotally upon a common axis, and means at one side of said axi for securing the clevis in selected positions .to the coupling. 7

27. Ina tillage implement, a beam having a a coupling connected to one of its ends, said coupling having upper and lower arms, a pivot to which the arms are connected to swing relatively thereto, .a clevis connected to said pivot and adjustable thereabout, and means at one side of the pivot for securing the clevis adjustable to the coupling.

28. In atillage implement, a beam having a couplingconnected to one of its ends, said coupling havlng upperand lower arms, a pivot to which the ,arms are connected to swing relatively thereto, one of said'arms having a lateral extension atone side of the pivot, a clevis connected to said pivot and adjustable thereabout, and means for securing the clevis in selected positions to the lateral extension. I p

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

-oHAnLEs r. RAY. V Vitnesses I W. J. HUNGA AND, F. M. BEDDING.

Washington, D. 0.

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