US115537A - Improvement in sulky attachments to plows - Google Patents

Description

GEQRGE M. sMxT'H. Improvemen in Sulky Attac'ments to Plovfs.

N0. 115,537. Pffatenied May 3G, 187i.,

GEORGE M. SMITH, OF PITTSBURG, INDIANA.

IMPRGVEMENT IN SULKVATTACHMENTS T0 FLOWS.

. Specification forming part of Letters Patent No. ll5,537, dated May 30, 1871.

To all 'whom it 'may concer-n:

Be it known that I, GEORGE M. SMITH, of Pittsburg, in the county iof Carroll and State of Indiana, have invented a new and valuable Improvement in Sulky Attachment to Plows and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this speciticat-ion, and to the letters and iigures of reference marked thereon.

Figure l of the drawing is atop view ot' my invention. Fig. 2 is a central vertical longitudinal section thereof. Fig. 3 is a partial cross-section. Figs. 4, 5, and 6 are details.

My invention has relation to certain iinprovements in sulky attachments for plows; and it consists in the construction and novel arrangement of' devices for keeping the wheels vertical, whether a lright-hand or left-hand plow be used; for changing the draft to correspond with the change of direction of the pole i in obliquin g to the right or left; forkeepin g the draft on the center between the spindle; and for changing the direction of the pole, as hereinafter set forth.

The letter A of the drawing designates the plow-beam. .B represents a transverse axlebar provided with the broad ends C C, cleft vertically at d d, and the slotted center E, through which the plow-beam passes. The plow-beam is attached to the bar B by means of the plate-arms e e, pivoted at their forward ends to the lateral walls of the slot E, and at their rear ends to the sides of the plow-beam in rear of the bar B. The right-hand plate e is extended forward to form a lever, f, whereby the driver may with the pressure of his foot regulate the height of the plow-beata. F F represent the spindles on which the wheels revolve. These spindles are usually made of steel, and have the forward and downward gather which is usual when (lished wheels are employed. The cast-iron slides to which the spindles are attached are lettered G. Each slide is provided with a square-mortise or socket, into which the square end g of the spindle is inserted, and fastened by means of a key, h, or other suitable device. Each slide consists of aface-plate, i, and T-shaped I tongue lc. The face-plate is made the full width of the bar B, and slides up and down on its end, being secured and guided by the tongue 7c, which engages with the vertical grooves l lin the lateral walls of the cleft d.. The tongue 7c is provided with a ratchet, m, which engages with the teeth of a quadrantlever, H, pivoted in the cleft d, and arranged to vibrate in the vertical plane passing through the axes of the wheels. The handle a ot' the lever H is bent at a', and perforated for the passage of a pin or stop, which serves to tix the position of the lever at any point, being also inserted into corresponding holes in the circular shoulder c of the broad end C oi' the bar B. It will be observed that the spindle, at one end of the bar B, is placed at the lower end of its block Gr, while that at the other end of the bar is situated at the upper end of the block, thereby requiring less breadth vertically across the end of the bar B than would be the case it' the spindles were in the centers of the blocks, by one-half, for the requisite movement of the spindle-blocks in changing the height of the wheels.` lVhen the right wheel is in the furrow the block G on the right has its spindle at its lower end, and the block on the left has its spindle at the upper end. But if the furrow is to be thrown to the left the left-hand wheel will be the lowest, and this is accomplished as follows: The blocks G G are slipped out of the grooves, reversed, and replaced. At the same time the spindles are removed, and without rotation, in order that in their sockets, the latter being now reversed so that the socket of the left-hand block will be at its lower end, and that oi the righthand block at its upper end. K represents the pole of the sulky, which is secured to the bar B by the brace L. The pole is slotted transversely at p for the passage of the semicircular ratchet M, having its teeth, preferably, on the inside. N represents a foot-wheel, whose shaft passes vertically through the pole, bearing a pinion, g, which rotates horizontally in the slot p, and operates by engaging with the toothed arc M to move the pole from one side to the other on its pivot i' at the rear end of the brace L. The draft-hook is attached to the ring s, which is attached to the pole by the same gather may be preserved, replaced an arm or loop, t, and is therefore carried to the right or left with the pole in moving. The draft is, however, communicated to the horizontal circular elevis u, which is securely pivoted to the forward end' of the plow-beam through the ring s, which encircles the clevis. V represents a spring-lever, which is designed to act in connection with the perforations o in the plate of the foot-lever j', as a stop, to

fix the plow-beam at any desired elevation.

Vhen the plow-beam is at its lowest position the force of the draft is sustained by the stops y y, which abut against the bar B at its center, in line between the spindles. When the beam is at its highest position the rin g s and pivots b c Will be in line, so that the draft Will be on the center ofthe bar B in this position. At the same time the top oi' the plow-beam will abut against the upper end of the slot E, and the spring-hook v will enter one ot' the perforations o in the plate of the leverf, so that the beam will be kept steady. The arrangement of the semieircular-toothed are M and the quadrant-levers H is such that the ends of the are serve as the pivots on which the quadrants turn. With the exception of the pole and plow-beam, the entire attachment above described is preferably formed of metal.

Having thus fully described my invention, What I claim as new, and desire to secure by Letters Patent, is-

The reversible slides G, adjustable spindle F, and transverse bar B, cleft at each end and provided with the adjusting-sectors II, constructed, combined, and arranged sub stantially as and for the purpose specified.

In testimony that I claim the above I have hereunto snbseribed my name in the presence ot two witnesses.

GEORGE M. SMITH.

IVitnesses:

I). I). KANE, FRANK B. CURTIS.

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