US65263A - Improvement in stump-exteaotoes - Google Patents

Description

@auch tstrs germi @ffice ISAAC PARDEE, OF VINELAND, NEW JERSEY, AND E. C. PARVIN, OF FOREST GROVE, NEW JERSEY, ASSIGN ORS TO R. C. PARVIN.

Letters Patent No. 65,263, dated Jll'ag/ 28,1867.

IMPROVEMENT IN STUMP-BXTRAGTORS.

TO ALL WHOM IT MAY OONCERN:

Be it known that we, ISA/rc PARDEE, of Vineland, in the county of Cumberland, and in the State of New Jersey, and R. C. PARVXN, of Forest Grove, in the county oi' Gloucester, and said State of' New Jersey, have invented a new and improved Stump-Extractor; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part of this specification.

y This invention relates to a new and improved machine for extracting stumps, elevating stone, and lifting or raising other heavy bodies.

The invention consists of two rack-bars, tted in a socket provided with pawls, and placed loosely upon a suitable framing, the rack-bars having a lever attached to their lower ends, and all arranged as hereinafter `fully shown and described, whereby a very simple, economical, and ellicientdeviee for the purpose specified is obtained-one not liable to get out of repair or have its working parts deranged by use. In lthe accompanying sheet of drawings- Figure 1 is a side view of our invention.

Figure 2, a vertical section ofthe same, taken in the line x x, fig. 1.

Similar letters of reference indicate like parts.

A represents a framing composed of a horizontal bed-piece, B, supported by inclined bars C, two at each side, the lower ends of said bars being attached to bases or sills D, or to a truckY when the raised articles are to be transported from the places where they were raised. E represents a socket, whih may be ci" cast iron. This socket has a rounded or semi-cylindrical bottom, which is fitted and works in a corresponding-shaped recess made in the upper surface of the bed-piece B, as shown clearly in fig. 2. F F represent two rack-bars, which pass up loosely through `the socket E, and have pawls Gr G engaging with them. These pawls rest on ledge, a, within the socket, and have their lower ends rounded, as shown at I), in fig. 2, which rounded edges give the upper ends of the pawls a tendency to keep engaged with the teetlrof the rack-bars. This will be fully understood by referring to fig. 2, in which it will bc seen that the lower ends of the pawls are rounded at their inner sides, and consequently deprived of a support which would havea tendency to keep them upright. By this arrangement springs which are usually employed in connection with pawls are avoided. In order to disengagc the pawls from the rack-bars, each pawl has a cord or small wire, c, attached, and these cords or wires pass through holes in the side ot' the socket so that they may be readily grasped when necessary. The lower ends of the rack-bars F F are connected by pivots d d to a metal lever, H, the ends of which have loops e attached to receive wooden handles I I. 'lhe handles, it will be seen, are simply an extension of the lever, and

, to the centre of the latter, at a point a trii'le below, but in a line midway between thc pivot-s del, which attach the rack-bars to the lever, there is secured a pendent bail, J, in which a ring, K, is placed. This ring K has two bars, L M, fitted or placed upon it, the bar L having an eye or holc,f, made in it near its lower end, and the other bar, M, having a rod, N, secured to it by a pivot, (g, sec iig. 1.)

The operation is'as follows: If a stump is to bc extracted the chain is adjusted around it, and the rod N of the bar M passed through a link, I1, thereof, and then through the eycf of thc bar L, (sec fig. 1.) The lever H is then operated, worked up and. down by a man at each handle I; and thc rack-bars F F raised alternately the distance of one tooth, the pivots cl d serving as fulcra alternately, and the pawls G serving to hohl the rack-bars.

It will be seen that by this simple arrangement a powerful leverage is obtained, andin consequence of the socket E being looscon the bed-piece B, and rounded atits bottom, the former is allowed to turn and adjust itself` to-conforrn to the line or position the chain will assumo under the pull of the rack-bars. The bars C may have handles O att-ached for the convenience of carrying the machine or adjusting it in' position, and the machine, in cases where it is desired to carry .or transport the elevated article from the pla-cc where it was clevated or raised, may be placed on a. truck.

Having thus described our invention, what we claim as new, and desire to secure by Letters latent, is-

The pawls G Gr, resting upon the ledge a of the socket E, withtheir lower inner corners rounded, as shown at b, so that their upper ends will fall by their own gravity against the ratchet-bars F, and engage therewith, when constructed and arranged as herein shown and described.

ISAAC lAltDEE, 1i.. PATH/IN.

Witnesses:

A. B. Hoven, WM. G. SMITH.

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