US1152035A - Buffer device for railway-cars. - Google Patents

Description

W. H. MINER.

BUFFER DEVICE FOR RAILWAY CARS.

APPLICATION FILED DEC- I. I9I3.

Patented Aug. 31, 1915.

3 SHEETSSHEEI I.

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W. H. MINER.

BUFFER DEVICE FOR RAlLWAY GARS.

APPLICATION FILED DEC. l. 1913.

Patented Aug. 31, 1915.

3 SHEETSSHEET 2.

l/l (I WITNESSES: Q Q Jamil/WW W. H. MINER.

BUFFER DEVICE FOR RAILWAY CARS.

APPLICATION FILED DEC- 19|3. 1,152,035. Patented Aug. 31, 1915.

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WILLIAM H. MINER, OF CHICAGO, ILLINOIS.

BUFFER DEVICE FOR RAILWAY-CARS.

v Specification of Letters Patent. Patented Aug, 31, 1915.

Application filed December 1, 1913. Serial No. 803,903.

To all whom it may concern Be it known that 1, WILLIAM H. MINER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Buffer Devices for Railway- Cars, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in of thebuffin'g device; Fig. 3 is a side elevation partly in longitudinal vertical section of one'ofthe side members of the bufling device showing the side stem thereof; Flg. 4

is a cross section taken on line 4 4 of Fig. l; Fig. 5' is a perspective view' of one of the rolls showing the bearing axle assembled therewith; Fig. 6 is a perspective view of one of the 'bearings for the rolls; Fig. 7 is a perspective View of one ofv the rolls with its axle removed; Fig. 8 is a perspective '-;'view of a-modified form of bearing for the frolls.

Referring to the drawings the numeral 9 represents the-platform of a.-passenger car provided 'Withapocket 10 for recelvlng the ""central'eompression resisting members of. the

"bufling device' 11 The central compression .resisting member 13 consists of, a shel112 COHthlIllHgfIfifitiOIl mechanism 13; abufier 'cap 14 adapted to engagethe-wedge-stem 1 5 and the preliminary. spr ng- 16, which 1s seated around the said wed e stem.

The numeral 17 represents the central buiferstem engaging at its rear end the ecu tral buifing member and at its forward end the rear face 18 of the face plate .19, which.

in usual construction comprises" the rear member 20 and the front member 21.

The numeral 22 represents the front platform end sill or buffer beam.

In preferable construction the bufiing device is provided with side members 23, 23, there being one at either side of the central buliing member, each of substantially the same construction, which consists of. a side stem 24, the side stems 24, 24, and the center stem 17, each passing through the buffer beam or platform end sill 22 through suit able apertures 25, 25 and 26, 26 provided in the front and rear portions thereof respectively. The buffer beam 22 is provided with a plurality of hollow chambers 27, 27, 27, each of said chambers being adapted tore ceive a buffer stem therethrough. The side stems are each preferably rectangular or square in cross section in the forward portion thereof, the rearward portion thereof being preferably cylindrical in form or circular in cross section. -The rear portion of each side stem is provided at its rear end with a spring seat 28, a nut 29, and preferably with a cotter pin 30 to secure the nut against accidental displacement. Adjacent the rear face of the buffer beam each side stem is provided with a spring seat 31 against which is seated at its forward end the side stem spring 32, the said side stem spring engaging at its rear end the spring seat 28.

The side walls of each chamber 27 in the buffer beam are formed by plates 34, 34 extended transversely of the beam and preferably integral therewith. Each of said chambers is provided with bottom rollers 35,

' preferably two in number, each of said rollers being adapted to engage the buffer stem passers comprises a roll 36, referably cylindrical in form, with a trunnion 37 extended from either end thereof. The trunnion 37 preferably consists of the ends of an axle 38 passed through the opening 39 in the roller. One

desirable way of making the rollers is to provide the axle 38 and cast the roll 36 about the same. Each of the bottom rollers is 'journaled in abearing 40, the-said'bearing I being preferably va block-like member in shape withvertical end faces 41, 41, and provided witha lugi42 on its bottom surface, each'of said bearings being mounted upon a spring 43 seated at its lower end against the bottom wall 44 of a chamber 27, and at its upperend' about the lug 42.

A vertical way 45'is provided in each chamber for the bearing 40, and in preferable construction the ends 41 of the bearing 40 are adapted to engage against the sides 46, 46 ofthe way 45. Ihe chambers through Which the side stems are passed are provided with upper rollers, preferably one for each chamber. Each of the upper rollers preferably comprises a cylinder 47 having an axle 48 passing therethrough, and extending at either end through a perforation 49 provided in the adjacent plates 3 1. Each axle 48 has a head 50 at one end and a cotter pin 51 at its other end. to guard against accidental displacement. The forward end of each side stem-engages the face plate by means of an annular pin 52 with which the side stem is provided, the said pin being received Within a strap 53 secured to the face plate.

In the modification of bearing for the rollers shown in Fig. 8 of the drawings the numeral 55 represents a block-like bearing member provided with a plurality of recesses 56, 56, each to receive a trunnion of a roll, and also provided with a plurality of lugs 57 57 around each of which the ends of a spring may be seated. If this form of bearing is employed the same is disposed within a chamber 27 in the buffer beam, the ways 45 hereinbefore described may be dispensed with, and the bearing 55 mounted in the single way formed by the ends of a chamber 27.

It will be understood that the face plate 20 engages a similar face plate upon the next adjacent car in a train of cars. The face plate in usual car construction is required to support other heavy parts of the car vestibule including the heavy vestibule face plates. It is important that the face plates herein described and the vestibule face plates borne by the same upon one car he kept in constant contact with the face plates of the adjacent railroad car in a train to prevent injury to those passing from one car to another by obviating the danger of being caught between vestibule face plates, or the face plates 20 described herein, should nieaoae the same become separated. Heretofore upon wearing of the bufi'er stems and a consequent distortion in the shape thereof it has clearance of the buffer stems within the buffer beam at all times during the life of the car, and thus not only insures a ready. p

response of the parts in sudden relative movements of the carsof the trains, but also insures the constant engagement of the face and vestibule plates of one car withthe face and vestibule plates of another car, and further results in the prevention of the rattling in car vestibules that has heretofore been constant in the operation of trains when the buffer stems become even slightly worn.

I claim 7 1. In a buffer for railway cars, the combination with a buffer beam and buffer stem,

of anti-friction rollers between which said I stem is mounted, the rollers being placed above and below said stem and the lower rollers having extended trunnions; at the ends thereof, separate slidable bearings for said trunnions at each end of the rollers, and

springs beneath said bearings.

2. In a bufier for railway-cars, the combination with a buffer beam and buffer stem,

of anti-friction rollers between which said stem is mounted, some of said rollers having extended trunnions at the ends thereof, bear-' ings for said trunnions at the ends of the rollers, and springs supporting said bear ings, said buffer beambeing provided with integral guideways in which said bearings are mounted.

' WILLIAM H, MINER.

Witnesses: ELIZABETH Brur'r',

J osnrn HABRIs.

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