US425855A - Car-pusher or pinch-bar - Google Patents

Description

(No Model.)

B BOWMAN GAR PUSHER 0R PINGH BAR.

N0. 425,855. Patented Apr. 15 1.890.

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UNITED STATES PATENT OFFICE.

EZRA BOIVMAN, OF REMINGTON, INDIANA.

CAR-PUSHER OR PlNCH-BAR.

SPECIFICATION forming part of Letters Patent No. 425,855, dated April 15, 1890.

Application filed March 1, 1890. Serial No. 342,310. (N model.)

To all whom it may concern.-

Be it known that I, EZRA BOWMAN, a oitizen of the United States of America, residing at Remington, in the county of Jasper and State of Indiana, have invented certain new and useful Improvements in Car-Pushers or Pinch'Bars; and I do hereby declare the following to be a .full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon,which form a part of this specification.

This invention relates to certain new and useful improvements in pinch-bars or carpushers.

The object of the invention is to provide a cheap, simple, and effective device for moving cars along a track; and it consists in a lever having a fulcrum with downwardly-diverging legs, which are adapted to hold the lever upon the track, anda spring secured to the lever so as to extend beyond the fulcrum, the end of said spring being turned upwardly, as will be hereinafter fully set-forth, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is'a perspective View of a pinch-bar or carpusher constructed in accordance with my invention; and Fig. 2 is a side view, partly in section, showing the application of the same to a rail and car-wheel.

A refers to the lever, which may be of a single piece, or, where lightness is required, of two pieces, the handle portion being made up of tubing which can be Welded or suitably secured to the lower section of the lever.

The short arm of the lever 0. beyond the fulcrum is curved slightly upwardly, while the lower portion is inclined toward the fulcrum, and at the juncture of the long and short arms the fulcrum b is formed, whichconsists in the present instance of a transverse projecting portion, to'which are rigidly secured arms or feet B B, which extend downwardly from said fulcrum and diverge slightly. A short distance below the fulcrum these legs B have straight inner edges, below which are formed knife-edges c, which are of such a distance apart that they will impinge against the sides of a standard track and prevent the lever slipping when pressure is brought thereon. These legs B are formed integral with the lever and fulcrum thereof, as will be understood by reference to, the drawings. To the long end of the lever is secured in any suitable manner a spring-plate D, which extends downwardly beneath the fulcrum and beyond the same, where its end is bent slightly upwardly.

In operation, when it is desired to move a car, the pinch-bar is placed upon one of the rails of the track so that the legs 13 B will straddle the same, and the pusher or pinchbar can then be moved beneath the wheel, and when the short end of the lever contacts with the periphery of said wheel the spring will be depressed, and the knife-edges of the legs will contact with the sides of the rail and prevent the implement slipping, and by a further downward movement of the lever the car-wheel will be turned to propel the car forwardly. This operation is continued until the car is moved the desired distance upon the track.

It will be observed that the spring entirely prevents the pusher beinglocked upon the track until quite a heavy pressure is brought upon the short end of the lever.

Having thus described my invention, I claim-- 1. The improved pinch-barherein described, consisting of the bar or lever ,proper having a raised fulcrum on the under side thereof, depending portions or legs adjacent to said fulcrum, and a spring secured to the under side of the lever to extend beneath and beyond the fulcrum, substantially as set forth.

2. In a pinch-bar or car-pusher, the combination of a lever, a fulcrum, and depending diverging legs with knife-edges formed integral therewith, and a spring-plate secured to the long arm of the lever, so as to extend beneath and beyond the fulcrum, the end of said spring plate being turned upwardly toward the short arm of the lever, substantially as set forth. I

3. The combination, in a pinch-bar, of a lever A, diverging legs or arms B, formed in- 5 tegral therewith, a transverse portion forming a fulcrum, and a spring-plate secured to the long arm of the lever, the end of said springplate extending beyond the fulcrum, and the upper face of the short arm of the lever being curved, substantially as set forth.

In testimony whereof I afiix my signature in presence of two Witnesses.

EZRA BOWMAN.

' Witnesses:

W. F. BUNNELL, R0131. PARKER.

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