US291975A - Sulky-plow - Google Patents

Description

(N0 Model.) 2 Sheets-Sheet 1A B. S. BENSON.

SULKY PLOW.

No. 291,975. H Patented Jan. 15, 1884.-

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(No Model.)

' 2 sheets-sheet B. S. BENSON.

SULKY PLOW.

Patented Jan. 15,1884.

ATTORNEYS.

lltirrnn @rares ihr-rtra'r @ri-rca BENJAMIN S. BENSON, OF BALTIMORE, MARYLAND.

Suray-PLOW.

SPECIFICATION forming part of Letters Patent No. 291,975, dated January 15, 11284.

Application tiled May il, 1583. (No model.)

270 all whom, it may concern:

Be it known that I, BENJAMIN S. BEN-sox, of Baltimore city, and State of Maryland, have invented a new and useful Improvement in Sullry-Ilows; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- FigureI lis a perspective view from the front. Fig. 2 is a rear end elevation,partl y in section 5 and Fig. 3 is a fragmental side view.

My invention consists in certain improvenients in sulky-plows, designed to facilitate the guiding of the saine, and for controlling the width of the furrow-slice, and adjusting the various parts, as will be fully described hereinafter.

In the drawings, A represents the plowbcain, which is inade of metal, and at its rear en'd carries the mold-board r3, which has a point and shear, but no landside. At the front end this beam is bent first up and then down, and is provided with two bearings, c a, in which is journaled a vertical rock-shaft, C, which has a horizontal arm, C', projecting to the front, and provided with an eye or point of attachment for the dra-ft of the team, and which shaft C has at its lower end a horizontal arm, C, projecting at right angles to the sha-ft, and also at right angles to the arm C or line of draft. rihis arm CZ forms the axle for the front guide-wheel, D, and this wheel is always in a plane parallel with the line of draft, for when the strain on arin C in turning rocks the shaft C, the wheel D correspondingly turns, and can, if necessary, pass under the upward curve of the front end of the plow-beam. To each side of the plow-beam, above the point of the mold-board, is bolted an offsettingbracket, E E, Fig. 2, which are respectively fastened to the lower ends of two vertical tubes, F G, and which tubes at their upper ends are connected by a cross-bar, H, upon which is mounted the drivers seat. In one of these tubes, F, is contained an interiorly screwthreaded tube or standard, F', which at its lower end is provided with a horizontal arm that carries the running wheel F2, that runs in the previously-cut furrow. This standard is adjusted up or down in the tube by a screwrod, F, swiveled in the outer tube, and having a threaded portion that enters the tubular standard F and draws it up or forces it down when turned. The other tube, G, has in it a tubular standard, Gf, having an interior screwthread, and provided at its lower end with a right-angular arin, G2, which carries the colter-wheel G, that runs upon the unplowed ground and marks and cuts vertically the slice that is to be taken off in the next trip. The

tubular standard G is adjusted vertically by a screw-rod, G, swivcling in the inain tube. and turned by a hand-crank, G, alone. For preventing back motion of this hand-crank, a pivoted detect, b, Fig. 1, is made to engage against a teat or projection, b', and for lifting this detent over the projection, the spool or hand-hold bt is made to bear against aspring, b, and lift the detent by simply pressing down with the hand upon said spool. A crank and locking device of a similar characterl is arranged to be used on the other screw-rod for the other wheel. By these means these two rear running wheels can be vertically7 adjusted to suit the depth of furrow-slice. rlhe colterwheel G:S is attached to a long tubular hub, and it is in the nature of a plain running wheel with a sharp edged ring, c, arranged in a plane at right angles to the axis and odset from the periphery of the wheel laterally by brackets, and also inade of greater diameter than the wheel, so that while the periphery of the latter is resting upon the ground its colter-ring c is cutting into the soil. The function of this colter-wheel is twofold-first, it'inarks and cuts the vertical incision for the following furrowslice, and, secondly, it resists the lateral thrust of the incid-board, which, having no landside, has atendency to run obliquely into the unplowed ground.

rIhe object in having the colter-ring offset from its running wheel, with a space between, is to permit the mud and dirt to crowd up between the same without clogging and throwing the colter out.

I is a platform for the drivers feet, which platform is sustained upon brace-bars J J fastened at one end to the plow-beam and at the other end tothe cross-bar H. K is a step-bar by which the driver mounts the platform.

To hold the outer ends of the axle-arms of IOO the two rear wheels, drag-bars L L are secured thereto, and at their forward ends are adjust ably connected together by a link, d. To the front ends of these drag-bars is attached a downwardlyprojecting arm, M, bearing a wheel, M', which runs in a horizontal plane, and bears against the wall of the preceding furrow and holds the front end of the plow against the side thrust of the mold-board, and serves to steady and guide the plow straight. To lift this wheel out of action, it, with the drag-bars L, is raised by a forked lever, N, which, at its rear end, is operated by a Verti. cal bar, O, provided with teeth for holding it either up or down. These drag-bars L also have a fiexible connection, e, with an arm, I), projecting upwardly from the plow-beam.

Q is a long lever mounted upon the outer end of the colter-wheel axle. This lever carries at its lower end a wheel, R. To this lever is fastened a push-bar, S, connected loosely by link below, and connected at its upper end to the cranked handle h. This push-rod is normally held up by a spring, T. I W'hen, however, the handle-crank h is grasped, the pushbar is shoved down and its lower end is made to enter the ground, and the draft ofthe team then turns thc lever Q and throws the colterwheel out of the ground, raising that side of the plow out of the ground. The brake t on the push-bar, by binding on the wheel R, re-

tards its motion and helps to retard the plow,

when needed, to stop the team.

Vith respect to the construction and arrangement of the forward end of the beam and its double-crank arms, I would state that I do not claim the wheel D in connection with the double-crank arms, as this is shownv in my prior Patent, No. 264,434, but only the curved end of the beam in that connection, which gives two bearings for the rock-shaft and still allows the wheel to pass entirely under the beam in turning, thus enabling the plow to be turned with a shorter curve. I would also state that a downwardly-proiccting arm, M, has been provided with a sliding bearing or landside for guiding the plow in connection with a single bar, L, as shown in my prior patent referred to, and in this connection I claim only the wheel or rotating bearing and the duplication of the bars L L, which give a riner support or resistance to the thrust of the plow and an easier friction.

Having thus described my invention, what I claim as new isl. The plow-beam having its front end bent iirst up and then down, in combination with the vertical shaft C, arranged in bearings on the beam, and having a horizontal draft-arm, G, and an arm, C2, at right angles to both the shaft C and its draft-arm, and provided with the wheel D, as and for the purpose described.

2. The combination of the plow-beam, the

Aoffsetting brackets E E, the vertical tubes F G, cross-bar H, the screw-threaded wheelstandards I1V and G, thc adjusting screw-rods Fs G", the said standards and screw-rods being contained in the tubes F and G, as and for the purpose described.

3. The combination, with the adjusting-rod GAl and ofthe crank G, pivoted detent b, locking-projection b', the hand-hold Ir', and spring b3, as and for the purpose described.

4. The combination, with the rear` crankaxles and the plow-beam, of the drag-bars L L, having a downwardly-projecting arm, M, bearing a horizontal rotating wheel adapted to bear against the wall of the preceding furrow, and made vertically adjustable, substantially as shown and described.

5. The combination of the platform, the adjusting-bar O, the lever N, the drag-bars L L', and the arm and wheel M IWI', substantially as shown and described.

6. The combination, with the colter-wheel axle, ofthe lever Q, bearing-wheel R, and the puslrbar S, adapted to be projected into the earth, to cause the draft of the team to throw the plow and colter out of the ground, substanti ally as described.

BENJAMIN S. BENSON.

Vitnesses:

EDwD. NV. BYRN, Grills. A. Pnr'rrr.

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