US159862A - Improvement in car-couplings - Google Patents

Description

Patented Feb. 16. 1875.

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INVENTOR MM WiTN ESSES ATTORNEYS il TATES PATENT FIOE.

IMPROVEMENT IN CAR-COUPLINGS.

Specification forming part of Letters Patent No. 159,862, dated February 16, 1875; application filed October 28, 1874.

To all whomit may concern Be it known that I, GEORGE M. THOMPSON, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and Valuable Improvement in Pole Attachments to Horse-Gars; 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 dra-wings making a part of this specification, and to the letters and figures of reference marked thereon.

Figures l and 2 or" the drawings are representations of sectional views of my pole attachment. Fig. 3 is a plan view of the same, and Fig. et is a detail View.

My invention has relation to means for attachin g draft-poles to horse-cars; and it consists mainly in attaching the coupling to a vertical pull-rod rising from the upper edge of the dash-fender, and held down by a spring, in combination with a spring-slide in the coupling-box, which will hold up the coupling-pin when the draft-pole is removed from the coupling-box, and allow this pin to automatically drop and effect a coupling when the pole is introduced into the said box, as will be more fully explained in the following description:

In the annexed drawings, A represents the platform of a street or horse car, and B the dash-fender thereof, which parts may be constructed in the usual well-known manner. O designates a bar, which is rigidly secured to the platform A, and which has a ilaring coupling-head, G', formed on one end, which head ares laterally, and has a floor and top parallel to each other. The throat of this coupling-head terminates in a long rectangular chamber, in which is applied a sliding block, D, behind which a spring, S, is arranged for moving the block forward beneath a couplingpin, E, when this pin is raised to allow the removal ofthe draft-pole F. The sliding block D has a pin, g, inserted into its upper side,

which plays in a slot, h, made longitudinally in the bar O, and checks this block when it has moved sufficiently far beneath the pin E. (Shown in Fig. 2.) G designates a pull-rod, the lower end of which passes through the head of the pin E, and the vertical portion of which passes up through suitable guides applied to the dashfender B, and has a spring, n, applied to it, which operates to hold the pin E down at all times. On the upper end of the vertical portion of the rod G a loop-shaped handle, j, is applied, by means of which the driver can conveniently raise said rod when he desires to uncouple the draft-pole E.

It will be seen from the above description th at when the coupling-pin E is raised far enough to allow the withdrawal of the draftpole E, the block D will be shot forward beneath the said pin by the spring S, and will hold this pin up. The spring a will then press the lower end of the pin E down upon the block D with sufficient force to prevent a casual dropping of the pin. Then the rear end of the draft-pole E is forcibly thrust into the coupling-head C', it forces the block D back, and allows the spring n to shoot the piu E through the eye of the pole, thus effecting a coupling.

WVhat I claim as new, and desire to secure by Letters Patent, is-

The vertical pull-rod G, work-ing in guides on the dash-fender B, and held down by a spring, n, the flaring coupling-head C', the coupling-pin E, the sliding block D, pin g, slot h, and spring S, in combination with the draft-pole of a horse-car, substantially as described.

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

GEO. M. THOMPSON.

Witnesses:

A. G. CARR, C. H. WILLIAMS.

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