US463296A - Stephen h - Google Patents

Description

(No Model.)

s. H. SPRINGER. BUFFER FOR RAILWAY CARS.

N0.463',Z96. Patented Nov. 17,1891.

UNITED STATES PATENT OFFICE.

STEPHEN H. SPRINGER, OF DES MOINES, IOWA, ASSIGN OR TO THE SPRINGER AUTOMATIC OAR COUPLER COMPANY, OF SAME PLACE.

BUFFER FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent N 0. 463,296, dated November 17, 1891. Application filed December 5, 1890. Serial No. 873,652. (No model.)

To aZZ whom it may concern: is also extended through a coinciding open- Be it known that I, STEPHEN H. SPRINGER, ing in the bar or abutment O. acitizen of the United States of America, and G is a head on the rear end of the'bar G. a resident of Des Moines, in the county of H are enlargements on the edges and in- 55 5 Polk and State of Iowa, have invented a new sides of the metal bearings, that restrict the and useful Buffer for Railway-Oars, of which inward motions of the sliding crossheads F the following is a specification. and the compression of the coil-springs J, My invention consists in the construction placed on the reciprocating bar Grand between of a bufier composed of fixed metal bearings, the cross-heads F and abutment O. 60 a reciprocating bar, sliding cross-heads, a re- K are the parallel side pieces of the wooden movable abutment, and coilsprings, and in frame, adapted to be fixed to a car, as shown combining the same with a car and drawbar, in Fig. 3, by means of bolts or in any suitas hereinafter set forth, pointed out in my able way. The metal cross-bar at the front claims, and illustrated in the accompanying end of the frame is bent upward at right an- 5 I 5 drawings, in whichgles, so that its end portions-can be fixed to Figure 1 is a perspective View of a metal a car to aid in securing the complete buifer bearingadapted to be fixed toawooden frame. to the car, and also to serve as a support for Fig. 2 is a bottom View of a Wooden frame to the draw-bar L, that isdetachably connected which a pair of the metal bearings is fixed as with the front end of the reciprocating bar G 70 required to support the sliding cross-heads, by extending the end of the bar G into a corthe abutment, and a reciprocating bar and responding bore in the rear end of the drawcoilsprings on the bar to produce a buffer bar L, and then passing a key through coinadapted to be combined with a caranda drawciding openings in the two parts, or in any bar. Fig. 3 is a longitudinal sectional view other suitable way as required to connect the 75 of the buffer attached to a section of the bottwo bars so that they will move jointly in tom and end portion of a car and connected their reciprocating longitudinal motions. with a draw-bar as required for practical use. When two cars that are equipped with my A represents one of my metal bearings cast buffers come together and the force of their complete in one piece, and A a mating piece. impact is transmitted to the draw-bars L and 8c 3 B is a transverse enlargement at the back the reciprocating bar G, the rear ends of the and center, adapted to fit into a correspond draw-bars L will press the sliding cross-heads ing cavity or transverse groove formed in F rearward, the coil-springs in front of the the wooden frame to which the metal bearing central abutment will resist the force, and is to be fixed. This enlargement produces a the abutinents will support the springs as 85 chamber B on the inside, adapted to admit they are thus compressed to prevent jarring Y and retain a removable metal block or plate and concussion, and when the pressure is re- O, adapted to serve as an abutment for the laxed the springs will resume their normal springs that are designed to prevent the jarposition, and in so doing move the cross-head ring and concussions incident to the pushing F, the draw-bar L, and the reciprocating bar G 90 and pulling of draw-bars in operating a train. to their former positions, and when the cars are D are ribs across the end portions of the moved in opposite directions, or one is moved backs of the bearings A and A adapted to away from the other, so as to pull outward on enter corresponding grooves in the wood to oneof the draw-bars L, such force willbe transaid in securely fastening the metal bearings mitted to the reciprocating bar G, connected 5 tothe Wooden frame. The ends of the beartherewith, and the head G will press the ings are perforated to admit the passage of sliding cross-head F forward and compress bolts, and D near the ends are flanges that the spring interposed between the said crossproduce chambers D adapted to retain and head and the central abutment O, as required guide the ends of sliding cross-heads F and to prevent jarring and concussion by a jerk I00 5 0 F, that have central openings through which ing or pulling motion to which the draw-bar a reciprocating bar G is extended. Said bar may be subjected, and when the pulling force is relaxed the power stored in the spring will replace the cross-head F and also the drawbarL and reciprocating bar G to their former positions. It is therefore obvious that when two carsare coupled together and the drawbar of one car is subjected to a pushing force and the draw-bar of the other car to a pullin g force the rearward motion of the one drawbar Will be met by the spring in the rear of the said abutment and the separate buffers.

0n the two distinct cars reciprocally operated to overcome any strain or jerk in the movements of the cars that might otherwise cause jarring, concussion, or damage to the couplings, cars, and train.

I claim as my invention- 1. A metal bearing for car-butters, consisting of an elongated plate having a transverse projection on its back and center, forming an open chamber adapted to receive and retain .the end of a cross-bar or plate, flanges at the end portion of its front or inside face to produce chambers adapted to receive ends of sliding cross-heads, and perforations in its ends to admit the passage of bolts, for the purposes stated.

2. A metal bearing for a car-buffer, consisting of an oblong metal plate havingan. extension B on its back and central portion,

producing a chamber B ribs D at its back and end portions, enlargements H on its edges, and perforations in its ends, substantially as shown and described, for the purposes stated.

A car-buffer comprising mating metal bearings fixed to the inside faces of parallel bars, each of said bearings having an elongated chamber extending across its central portion, a chamber at each end adapted to receive the ends of sliding cross-heads, and enlargements or shoulders to restrict the inward motions of said cross-heads, having central openings and their ends extended into said end chambers, a plate or abutment having a central opening and its ends in the central chambers of the mating metal plates or bearings, a bar having a head at its rear end extended through the central openings in the sliding cross-heads and the abutment, and coil-springs placed upon the said bar and between the said cross-h'eads and abutment, in combination with a car and draw-bar, to operate in the manner set forth, for the purposes stated.

STEPHEN H. SPRINGER.

lVitnesses:

R. H. ORWIG, THOMAS G. ORWIG.

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