US392613A

US392613A - keith

Info

Publication number: US392613A
Authority: US
Publication date: 1888-11-13
Anticipated expiration: 1905-11-13

Description

(No Model.) 2 Sheets-Sheet 1..

H. N. KEITH.

WHEEL PLOW.

Patented Nov. 13, 1888.

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v v M 2 Sheets-Sheet 2. H. N. KEITH.

WHEEL PLOW.

(No Model.)

No. 392,613. Patented Nov. 13, 1888.

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UNITED STATES PATENT OFFICE.

HENRY N. KEITH, OF SHELDON, MISSQURI.

WHEEL-PLOW.

SPECIFICATION forming part of Letters Patent No. 392,613, dated November 13, 1888.

Application filed February 28, 1888. Serial No. 265,565. (No model.)

To all whom. it may concern.-

' Be it known that I, HENRY N. KEITH, a citizen of the United States, residing at She1- don, in the county of Vernon, State of Missouri, have invented certain new and useful Improvements in Wheeled Plows, of which the following is a specification, reference be ing had therein to the accompanying drawings.

This invention-has relation to wheeled plows, and the objects and advantages thereof will hereinafter appear, and the novel features be particularly pointed out in the claims.

Referring to the drawings, Figure 1 represents a perspective of a plow constructed in accordance with my invention; Fig. 2, an enlarged rear perspective of a portion of a plow-frame, parts being broken away. Fig. 3 is a detail in perspective of the pivotal plowsharebrace, and Fig. 4 is a detail in perspective of one of the bearings for the furrow-wheel.

Like letters of reference indicate like parts in all the figures of the drawings.

A represents the plow -beam, which composes one side of the frame, and bolted thereto, as at A is a laterally-bent rectangular side frame, A',which, in connection with the beam, forms an open frame in which the plow-controlling mechanisms are mounted, said beam and frame to be composed of bar or strap iron. To the forward end of the beam A is secured the usual clevis, A, andat the side of said beam and near its rear end is bolted a strap or bar, A which by suitable space-blocks forms a recess, A, through which passes vertically the plow-standard B, said standard being pivotallymounted upon a transverse rockshaft, 0, which is journaled in opposite lugs, G, projecting upwardly from each side of the frame A A. Mounted rigidly upon the rockshaft 0 at one side thereof, and projecting vertically therefrom, is a rock-arm, 0 having a longitudinal sl0t,,C said rock-arm being ar ranged inclose proximity to the inner face of the plow-standard and a pin, B, in the latter taking into the slot G of the former, by which said plow may be swung to the front or rear when the rock-shaft C is oscillated or partly rotated by means hereinafter described. At the opposite end of the rock-shaft Ois mounted a rock shaft-operating lever, O, which is provided with a locking-pawl, 0 adapted to take into a segmental rack, O, which straddles the rock-shaft G and is secured to the frame A.

At the forward part of the frame A A and passing transversely therethrough is a journaled shaft, D, preferably bent, which carries theland-wheeloftheplow. Rigidlyconnected and extending from the shaft D is a springlever, D, to the upper end of which is pivoted a notched hand-bar, D which projects to the rear and is adapted to be held in a desired position by means of the notches thereof taking into pins 0, projecting from the lever C. At the opposite side of the shaft D, or it may be upon any convenient part thereof, is mounted an adjustable embracing-sleeve, Di, provided with a set-screw and outwardly-projecting perforated lugs or cars, in which is pivoted the colter-standard D, carrying at its lower end the colter D and embraced by the end bifurcations, D, of a lever, D which is likewise perforated and adj ustably pivoted to the standard D by means of a bolt passing therethrough. The rear end of this lever D is pivotally connected with a rock-arm, D depending from the rock-shaft O.

In rear of the shaft D of the land-wheel and journaled transversely in the frame A A' is the furrow-wheel shaft E, which may or may not be rigid,as desired. In order to give this shaft a sufficient length to bring the furrow wheel into the furrow preceding that being formed, I provide an extended bearing, E. This bearing E is bolted to the beam A, is a cast, flanged, and longitudinally-bored plate forming the upper half of the bearing, and bolted to the same, as at E", is a lower plate, E forming the lower half of said bearings. If desired, as upplemental frame may be bolted to the outer side of the beam A to form this extended bearing.

Bolted to the rear end of the beam A is a bearing-block, F, in which is vertically swiveled a castenframe, F, carrying a caster, F and provided with a scraper, F, projecting from the frame, said caster being free to move in any desired direction determined by the plow.

From the frame A A, or, it may be, as shown in Fig. 1, from the inclined brace B, there extends a chain, G, to the opposite end of which is connected a spring-shoe, G, which is adapted IOU to be inserted under the caster F when moving from one field to another, and serves as a runner for said caster, and also as a brake for the plow, and it also serves to aid in elevat- 5 ing the plow-point from contact with the ground. This spring-shoe G is simply a plate of metal bent upon itself, the lower portion serving as a runner and the upper portion, G

being flanged and adapted to embrace the rim of lo the wheel and also perforated,as at G through which a chain may be passed to chain the same in position upon the wheel, or the flanges may be relied upon, if desired.

B represents the plow standard; 13", the

15 plow-point; B, the mold'board, and 13 the blade. Transversely interposed between the mold-board B" and the standard B is the crossbrace 13'', (see Fig. 3,) which is provided with perforated ears B, between which are pivoted the lower ends of the diagonal brace B the upper end of said brace being bolted to the bearing F, as at B or it may be to the rear end of the plow-beam A. A supplemental brace, B extends from the brace Bhwhich is 2 5 pivoted to the upper portion of the standard B and serves as an additional brace to said standard. By means of these braces all inordinate strain is removed from the plow-stand ard proper.

The operation of my invention is as follows: To increase the depth of a furrow, the oper ator, who is seated upon the usual drivers seat, H, grasps the lever G and disengages the ratchet thereof with the segmental rack 0 and 5 throws said lever to the front the required distance. This operation causes the rock-shaft C to turn, and through the medium of a slotted rock-arm, G", and the pin B the plow-standard B is caused to swing to the front, so as to 0 lower the point ofthe plow. At thesame time the notched bar Dflwhich has-been previously adjusted for the purpose, is caused to move to the front the same relative distance, and this movement causes the spring-lever D to move 5 to the front and turn the axle D, carrying the land-wheel to the rear. The spring-lever D is of sufficient rigidity to cause this operation of the axle D, and yet is of sufficient flexibility to permit the axle to yield and the Wheel to pass over such obstacles as stones, roots of trees, 850., thus preventing breakage of any of the parts. Simultaneous with the movement of the parts described the rock-shaft D is swung to the rear and causes the colterstandard D to swing upon its pivot, so as to throw the colter D to the front and into the ground, thus permitting the plow point to enter deeper and increase the depth of the furrow. This pivotal movement of the plow-point is permissible byreason of the pivotal connec tions of the brace B with the cross-bar B and the end of the plow-beam. By this arrangement of the parts it will be seen that the operator has a clear and unobstructed view of the plow and that the controlling devices are within easy grasp of his hand, and that the colter, the plow, and the land-wheel are all regulated by one and the same movement, and that each is so arranged that its adjustment may be made in properrelation to the other.

H represents the seat, which is of usual construction and mounted upon the spring-support H in rear of the plow, so that the same may be readily seen and its operation noted and regulated.

Having described my invention and its op eration, what I claim is- 1. In a plow of the class described, and in combination with the frame-Work thereof, a transverse rock-shaft mounted thereon having a rigid hand-lever at one end, and aplowstandard having an inwardly-projecting pin and a rock-arm mounted on said rock-shaft and slotted to receive said pin, substantially as specified.

2. In a plow of the class described, the combination, with the frame-work thereof having a transverse land-whcel-carrying axle, and a transverse rock-shaft mounted in rear of the same, provided with a hand-lever, of a springlever mounted rigidly upon said axle and a notched bar pivoted to said spring-lever and adapted to take over pins projecting from said hand-lever, substantially as specified.

3. In a plow of the class described, a plow- ,frame provided with a land-wheel-carrying axle having a rigid spring-lever and a looselyconnected colter standard, in combination with a rock-shaft mounted in the frame and carrying a plow-standard and means for swinging the same, an operating-lever, a rock-arm, and mechanism connecting said colter-standard and spring-lever with said roclrshaft and arm, substantially as specified.

4. In a plow of theclass described, a framework provided with a laud-wheel-carrying axle having a spring-lever and a loosely-connected colter-standard, and having a rockshaft carrying a plow-standard adapted to swing the same, and provided with a hand- -lever for simultaneously moving said axle colter-standard and plow-standard, substantially as specified.

5. In a plow of the class described, the com- I bination, with the frame thereof carryinga landwheel axle, of a rock-shaft carrying a handlever, a spring-lever, D, mounted on said axle, and a notched bar connecting said spring-lever and hand -lever, substantially as specified.

6. In a plow, the combination, with the frame thereof having a land-wheel-carrying axle, a pivoted colter-standard, and a rockshaft, of a plow-standard and operating-lever mounted on the rock-shaft, and mechanism connected to said lever and shaft for simultaneously operating the plow-point, landwheel, and colter, for the purpose specified.

7. In a plow of the class described, the combination, with its frame and the furrow-wheel axle, of the laterally-extending casting E, bolted to the frame, and the lower casting bolted to the upper casting, as at E, substantially as specified.

8. The frame A A, carrying the axles D and.

ICC

. E and rock-shaft O, in combination with the In testimony whereof I affix my signaturein spring-lever D and colter D, mounted on the presence of two witnesses. axle D, and the plow-standard 13, mounted on the rock-shaft O, the segmental rack O, the HENRY N. KEITH. 5 lever 0, having the pawl 0 the rock-arm D the notched lever D and the bifurcated lever Witnesses: D, all combined and arranged substantially as S. L. CLAYTON, specified. G. W. MoOLANoHoN.