US401337A - Colter attachment for plows - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.4 W. J. EDWARDS. GOLTER ATTACHMENT FOB. PLOWS.

Patented Apr. 16, 1889.

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(No Model.) 3 Sheets-Sheet 2.

W. J. EDWARDS. GOLTBR ATTACHMENT TOR TLOWS.

No. 401,33?. I Patented Apr. 16, 1889..

Je i 'TT (No Model.) 3 Sheets-Sheet 3'.,

W. J. EDWARDS.

GOLTER ATTAGHMENT POR PLoWs.V

No. 401,337.. PatentedApr. 16. 1889l` N PETERS Phamummpw. wnhingm. n. c.

UNITED STATES PATENT EEICE.

VILLIAM J. EDVARDS, OF CHICAGO, ILLINGIS.

COLTER ATTACHMENT FOR PLOWS.

SPECIFICATION forming part of Letters Patent No. 401,337, dated April 16, 1889.

Application filed March 20, 1888.

To all 10700712/ it may con/ecrit:

Be it known that I, WILLIAM J. EDWARDS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Colter Attachments, of which the following is a specification.

This invention relates to colter attachments for plows, and more particularly to colter attachments involving a hanger adapted for direct attachment to the plow-beam and a laterally-swinging colter arm or yoke carrying a rotary colter disk or blade and suspended from the hanger by devices adapted to permit the coltcr arm or yoke to be swung vertically, and secured at certain points in its vertical swing, in order to effectan adjustment in height oi' the rotary colter-blade, or rolling colter, as it is more commonly termed.

The more prominent objects of my inven tion are to provide a simple, compact, and etlicient construction for permitting both the lateral and vertical swing of the yoke that carries the eolter-blade, to avoid clogging of the yoke, and to provide certain novel and improved details.

To the attainment of the foregoing and other useful ends my invention consists in matters hereinafter set forth, and particularly pointed out in the claims.

In the drawings, Figure l represents in side elevation a rotary or rolling colter-hlade connected with a plow-beam through the medium of an attachment embodying the principles of my invention, a portion only of the plowbeam being represented. Fig. 2 represents a vertical section taken through the hanger and yoke on a plane transverse to the plane of Fig. l and indicated by dotted line 2 2 in said figure. Fig. 3 represents a section taken transversely through the colteryoke on the dotted line 3 3 in Fig. 1 a portion of the colterblade being shownin section, the principle object of said figure being to illustrate the inclination of the inner sides of the two divisions of the yoke, whereby said sides along a certain length of the yoke diverge from their upper to their lower longitudinal edges in order to avoid the accumulation of dirt or trash in the yoke. Fig. et represents a section taken through the colter-blade and the bearings in which it is journaled at the lower end of the Serial No. 267,899. (No model.)

yoke, the plane of said section being parallel with the axis of the colter-blade and indicated by dotted line el 4, Fig. l. In said Fig. 4 a portion only of the colter-blade is shown. Fig. 4f* represents one of the bearing-pieces herein preferably employed in the boxes wherein the colter-blade is journaled. Fig. 5 represents a sectional plan taken on anY irregular plane indicated by dotted line 5 5, Fig. 1. Fig. 6 represents the hanger in side elevation. Fig. is a detail view wherein the lnearest one of the two sides or divisions 3 of the colter-yoke is understood to be removed, so as to expose one of the sets of teeth on the swiveled hub or bearing E, a portion of the opposite or farthest side of the yoke being shown; also, a portion only of the hanger is represented in this figure. In said View the bolts 7 are shown in cross-section. Fig. S represents in side elevation the inner side of one of the sides or prongs of the yoke. Fig. 9 represents in perspective a section taken through one of the boxes or bearings herein provided at the lower end of the yoke. Fig. l0 represents a longitudinal vertical section taken on a plane centrally through the hanger andyoke, with the colter-blade shown in elevation, the plane of said section being parallel with the plane of Fig. l. Fig. ll represents in elevation the toothed swiveled hub or bearing for the colter-yoke. Fig. l2 is a bottom plan view of the yoke.

In said drawings, A denotes a circular disk,

which constitutes the rolling colter-blade.

proper, and which, when mounted upon asupport depending from a plow-beam, B, is understood to operate in advance of a plow.

The pendent support Vherein shown for at taching the colter-blade to the plow-beam and for permitting both the lateral swing and vertical adjustment of the colter-blade comprises a bracket or hanger, C, designed to be attached to the plow-beam and the colter arm or yoke D, which is hung so as to swing about a vertical pivot on the bracket, and at the same time to tilt independently of such pivot, in order to permit an. adj nstment in height of the coltenblade, which is journaled at the lower end of the swinging arm or yoke.

In order to permit a lateral or horizontal swing on the part of the colter-yoke, the bracket is provided with a vertical pivot, l,

about which the said colter yoke or arm is arranged to have a suitable extent of swing, and as a means for permitting such lateral swing on the part of the yoke and for permitting the raising or lowering of the colter-blade, so as to determine its depth of cut into the soil, the colter-yoke is hung upon and arranged to depend from a hub or bearing, which is mounted to turn about said vertical pivot, whereby the colter-yoke can be swung or tilted in a vertical plane, and although subsequently locked by suitable means in such adjustment will be left free to swing horizontally, as before. To the attainment of such end an adjustable swivel is formed by a hub or bearing, E, mounted to turn about the vertical pivot of the hanger and providing for the upper end of the yoke a rotary bearing, upon which the upper end of the yoke is fulcrumed in a manner to p'ermit the yoke to be tilted for the purpose of raising or lowering th'e colter-blade. As a means for holding the colter-yoke in adjustment on its said swiveled fulcral bearing or hub E, the hub and colter-yoke are provided with interlocking teeth or analogous projections, serving to hold the parts when clamped together against independent movement, but permitting the desired vertically-swinging adjustment or tilt of the colter-yoke after such parts have been properly loosened up. The hub or bearing E, which is thus mounted to rotate both ways about a vertical pivot or axis, is provided at each of two opposite sides with a short stud or journal, 2, (best shown in Figs. 2 and 11,) whereby, when the hub is embraced by the upper end portion of the colter-yoke, the sides or divisions 3 of such yoke can be and herein are hung or fulcrumed upon the studs 2. In this way the yoke embraces and is fulcrumed upon the hub, whereby it can be tilted about a horizontal axis afforded by the hub, while on the other hand the hub, thus affording a 'fulcral bearing for the yoke, is mounted to turn about a vertical axis. The studs or journals 2 also serve to maintain the upper ends of the two sides or divisions 3 of the yoke in position relatively to one another. The colter-yoke thus fulcrumed upon the hub or bearing E, so that it can be. tilted independently of the hub for the purpose of raising and lowering the colter, is to be firmly locked upon said rotary hub o'r bearing after it has been swung or tilted to an angle suitable for placing the colter-blade at the desired height. As a means for holding the yoke in its said adjustment upon the hub or bearing E, and for permitting such positioning of the yoke to be readily and accurately made at anydesired angle along the allotted extent of its up-and-down swing or tilt, the hub is provided with two oppositely-arranged sets of teeth, 4, adapted to interlock with corresponding sets of teeth 5 on the yinner faces of the two side divisions 3 of the yoke, as in Figs. 2 and 5. These sets of teeth may be in the form of interlocking segment-gears, but are preferably extended to form complete annular sets, as herein shown, thereby providing for more extended locking and interlocking surfaces. The short studs or journals 2 of the hub E desirably project centrally with relation to the annular sets of teeth on such hub, and the holes 6 (Fig. S, for example) formed in the sides of the yoke for the reception of the lateral journals 2 on the hub are desirably arranged centrally with relation to the annular sets of teeth 5 of the yoke. Vhen the two sides of the yoke are drawn together and clamped against the hub, the interlocking of said sets of teeth respectively on the hub and yoke serves to hold the latter in its adjustment and eifectively resist any tendency on the part of the yoke to swing independently of the hub. By providing the hub with two set-s of such teeth, respectively at opposite sides thereof, an vextended bearing and locking surface is provided. With such arrangement the strain incident to any opposition to the colter-blade is distributed along and from both sides of the yoke to both sides of the hub at points opposite the vertical pivot about which the hub is arranged to turn or oscillate. In this connection it will be observed that the studs or journals 2 subserve a purpose independent of their mere function 4 as pivotal or fulcral supports for the colteryoke, said function being to maintain the sets of teeth on the yoke-in match or register with the sets of teeth on the hub, so that under any and all circumstances the lock between such sets of teeth will be perfect. As a means for clamping the toothed prongs or sides of the yoke against the corresponding toothed sides of the hub or bearing E, tiebolts 7 can be and herein are employed as one of various means for holding such members together. Wit-h such arrangement the yoke sides 3 are at their upper ends provided with suitable bolt-holes, 8,(Fig. 8,for exam ple,) for such bolts, and the hub E is at points along its toothed sides provided with curved or segmentfshaped slots 9, Figs. 7 and 10, through which the bolts may pass at opposite sides of the pivot l, about which the hub is arranged to turn. The slots 9 permit the lateral movement of the tiebolts 8 incident to the tilt or IOO IIO

raising and loweringof the colter-yoke and j `colter-blade, and are of length proportional to the greatest desired extent of such tilt.

In order to permitthe tilt or raising and lowering of the colter-blade, the bolts 7 can be loosened by properly unscrewing their respective allotted nuts, so as to allow the teeth of the yoke to be disengaged from the teeth of the hub or bearing E. After adjusting the yoke to the proper angle the nuts can be again tightened up, so as -to draw the sides of the yoke upon the hub and hold the toothed por` tions of said members iirmly interlocked.

From the foregoing it will be seen that the yoke is pivoted or fulcrumed uponv a hub or bearing that is capable of turning about a pivot on the hanger, whereby the horizontal fulcral axis about which the yoke may be raised or lowered, as hereinbefore set forth, intersects the vertical axis about which the hub or bearing E is free to turn. ln this way the yoke is in effect connected with the hanger by a compound joint which, while permitting the two distinctive movements of the yoke, is brought within a small compass, and is rendered highly efficient and exceedingly strong and durable.

The bracket or hanger C can be attached to the plow-beam in any suitable way, the attaching device herein represented consisting of a yoke formed by a couple of bolts, 11, (but one of which is shown,) arranged to engage at their lower ends in a groove or slot, 12, in the hanger, and having their upper ends connected together by a plate, 11. By such arrangement the hanger can be adjusted in position along the beam and then firmly clamped against the same, or,when desired, the hanger can be adjusted laterally with relation to the beam or entirely detached.

The upper bearing-surface, 13, of the han ger, which bears upwardly against the beam, is herein shown extended rearwardly to and over the vertical pivot 1, in order that said pivot can be supported at both ends, its upper end being united to and supported by said horizontal portion 13 of the hanger and its lower portion united to and supported by the lower end oi' the curved depending arm or portion la of the hanger, as particularly shown in Fig. 6. This strong and simple construction constitutes a feature of improvement in the hanger whicli,if desired, can be economically cast in one piece with the pivot 1; also, the arrangement of the pivot l relatively to the curved pendent portion 14 of the hanger, while affording ample space, as at 15, Fig. 6, for the upper end of the yoke, permits the pivoted or swiveled fulcral bearing for such upper end of the yoke to be brought in close proximity to the plow-beam.

lVhere the rotary hub or bearing E .is arranged upon a vertical pivot, which, like the pivot l, unites at both of its ends with the bracket, the said hub is desirably made in halves, both for convenience in casting and to permit it to be readily fitted to the pivot. XV hen thus made and applied, the two parts of the hub can be secured rigidly together by bolts or rivets 16, the result being in effect a hub made in one piece.

For the purpose of lightness the hub can be formed ot a two-part shell or casting; and in this connection it may be observed that the pivot when made hollow, as herein shown, will be found gto possess ample strength. When the hub E consists of a two-part shell, it can be provided at its upperand lower ends with bearings 17 for the pivot l, the upper bearing 17 being herein somewhat extended by the provision of a short neck, 1S, rising from the hub.

The extent of lateral swing either way on the part of the yoke can be limited by any suitable arrangement of stops-as, for example, the neck 18 at the upper end of hub E can be provided with a notch, 19, orthe reception of a stop or lug, 20, on the hanger C, the ends of the notch in such case affording shoulders or abutments, which may` alternately engage the stop, and thereby limit the extent of rotation either way on the part of the hub or bearing E.

The swinging arm or yoke D is at its lower end provided with boxes F, in which the colter-blade is journaled. The boxes F are adapted to permit the lubrication of the col terjournals and their bearings, to which end each box is provided in the lower portion of its inner wall with a recess, as at 21, Fig. 9, suitable for the reception of a quantity of waste, 22, Figs. 4C and 2. The box is also provided with a suitable neck or nipple, 23, through which any suitable lubricant can be introduced, and desirably each box is further provided with a half-cylindric bearing-piece, 2li, which is iitted into the box, substantially as shown, although of course the construction is not limited to the employment of such bearing-piece.

Each of the two prongs or side pieces, 3, of the colter-yoke is at its lower end provided with one of said boxes F.

The disk forming the colter-blade is formed with a central opening for the axle that serves to provide the journals, and said axle is at a point adjacent to the middle of its length formed with a i'iange or annular shoulder, 26. The colter-blade is fitted directly 4upon the axle and clamped between said iiange 26 and a collar, 26a, which corresponds to the flange 26, and is slipped upon the axle. These parts are held rigidly together by bolts 27, which extend through said ange, blade, and

collar. 4

The journals or end portions of the axle .have their bearings directly in the boxes F of the bearing-surfaces of the cylindric journals, being the axle length, which extend from their iiange or shoulder 26 and the collar 26 to the ends of the axle, thereby providing simple and efficient means for steadying the IOO IIO

colter-blade, for providing the colter-blade with journals, and for mounting 'such journals in boxes capable of containing sufficient waste and lubricant to last a considerable length of time.

As hereinbefore stated, the outer ends of the boxes are closed. This is preferably attained by casting the boxes integral with the ends 24C, which serve as caps at such points. Of course the caps could be made separately and then secured to the boxes; but by the arrangement herein involved the expense and other disadvantages incident to such work are rendered unnecessary. The inner ends of the boxes, respectively, are in close proximity to the flange 26 and collar 26 on the axle, which saidlanges serve, therefore, to close the boxes at such ends, and thereby exclude dirt. The lower ends of the colter-blade prongs thus provided with boxes are prevented from spreading apart by a rod or bolt arranged to pass centrally and longitudinally through journals and bearing at its ends in the outer ends, 24, of the boxes. To permit such arrangement of the bolt 29, the axle is provided with an axial bore corresponding to the size of bolt. The bolt 29 is at its ends pro'- vided with suitable shoulders,which bear against the outer sides of the ends or end caps, 24, of the boxes, a simple way being to provide an ordinary bolthaving at one end a head and at the other end a nut, or to provide the bolt with a nut at each end.l -Any tendency therefore of the lower ends of said sides, together with the boxes F, to spread apart during operation will be eectively resisted by the bolt 29. The journals G can, however, revolve freely about the rod 29, which, while preventing the boxes from being forced away from the colter, need not revolve with the journals.

The prongs or sides 3 of the yoke are formed so that their inner opposing faces, 30, incline with a divergence from their upper to their lower longitudinal edges, as illustrated in Figs. 3, 5, and l2.

In Fig. 5 the inclination of the inner face of each side 3 of the yoke is indicated by a comparison of the upper edge, 31, of such inv ner face with the lower edge of the face, the

said lower edge being indicated byv dotted line 32, which further indicates that the face slopes toward a somewhat outwardly-curved edge. This feature prevents the accumulation of dirt and trash in the yoke, since any matter thrown forward from the plow into the4 space between the sides of the yoke will obviously drop and clear itself from the yoke by reason of the downward divergence or expansion of such space between the yoke sides.

l/Vhat I claim as my invention is- 1. The combination, substantially as hereinbefore set forth, lof the rotary hub E, provided with oppositely-arranged toothed faces, the vertical pivot l, arranged as a stationary portion of a bracket and providing an axis about which the hub is arranged to turn, and

the colter-yoke carrying a colter-blade and having toothed portions which engage with the toothed faces of the hub, for the purpose described.

2. The combination, substantially as hereinbefore set forth, of the rotary hub E, iitted to turn upon a vertical pivot and provided with oppositelyarranged toothed faces, thecolter-yoke carrying a colter-blade and having toothed portions which engage with the toothed faces of the hub, and one or more bolts, 7, engaging the colter-yoke and extending through one 0r more curved slots, 9, that are formed through opposite sides of the hub, for the purpose described.

3. The combination, substantially as hereinbefore set forth, of the colter-yoke carrying a colter-blade and having toothed portions, as described, and the rotary head E, tted to turn about a vertical pivot and having at opposite sides the circular toothed face portions 4, and projecting journals 2, arranged centrally with relation to said circular toothed portions, the colter-yoke being hung upon said journals and held with its teeth in engagement with the teeth of the hub, for the purpose described. A

4. The combination, substantially as vhereinbefore set forth7 of the bracket C, adapted to fit against a plow-beam and having a vertical pivot, l, rigid therewith and extending from the lower end of its arm 14 to its top portion, 13, the hub E, fitted to turn about said pivot and provided with oppositely-arranged toothed faces, and the colter-yoke carrying a colter-blade and having toothed portions engaging the toothed faces of the hub, said bracket being directly attached to a plow-beam, for the purpose described.

5. The colter-yoke having the inner opposing faces of its two sides or division formed to diverge from their upper toward their lower edges, substantially as and for the purpose described.

WILLIAM J. EDWARDS.

Vitnesses:

L. S. LOGAN, CHAs. G. PAGE.

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