US99424A - Improved railway-car brake - Google Patents

Description

W. G. FOSTER.

Car Brake.

' Patented Feb. 1,1870.

m-m e 5 dished sate WILLIAM FOSTER, OF'APALAOHIN, NEW YORK.

Letters Patent N0.'Sl9,424, dated February 1, 1870.

IMPROVED RAILWAY-CAR BRAKE.

The Schedule referred toin these Letters Patent and making part of the same.

-To all whom it may concern l Be it known that I, WILLIAM G. Fos'rnn, of Apalachin, in the county of Tioga, and State of New York, have invented new and useful Improvements in Car- Brakes; and I do hereby declare that the following is a full, clea-r, and exact description thereof, which will enable others' skilled in the art to make and use the same, reference being bad to the accompanying drawings, forming part of this specification.

Figure l is auend view of thecar D.

Figure 2 is a bottom view of the car 1), showing the ii'iction portions, and vibrating bevel-pinion.

Figure 3 is an end View of the car D.

Figure 4 is a section of the two cars coupled, the section being taken through the line x x of fig. 5.

Figure 5 is a bottom 'view of the cars D D.

. Similar-letters of reference indicate corresponding parts. f g

The nature of this invention relates to the braking of a train of cars, by the application of power upon one car of the train.

It consists in certain devices for operating the braking-mechanism of each car, consisting of a spring and chain,in combination with another spring, and in connection with a shaft, upon which said chain is'wound,

and a lever, whiclris operated by said springs; also,

in the arrangement of two bevel-pinions, one of which works in a semicircular frame attached to the truckframe, and the other is secured to a longitudinal shaft under the centre of the car.

In the drawings D I) are platform cars, taken to represent an two cars of a train.

A A, 860., are the trucks, and E E, &c the wheels thereof, keyed on axles F F, &c., all of the usual construction.

The brakes G are connected, by brake-bars H, in the usual manner.

Each pair of brakes of the same car are connected with each other, by means of rods d d, and a brakelever, c, the said rods being attached to the brake-bars H, and the brake-lever, as shown at fig. 4.

The upper end of the brake-lever is connected with shown, the'pinion I) being secured to the shaft B, by set-screws, for the purpose of more readily adjusting the brakes to their bearings, as shown.

The connecting-l'leads J O, of the shafts B'B'of each car, are selicoupling, operating on the principle of an universal-joint, as that shown at J and C, so that the shaft 13 of the car D will actnatethc brakes of all the other cars of the train, by means of the bevel-pinions a and I), the shaft 1, chain g, springs h 7t, and brakelever e of each car, which said mechanism is operated by theshaft B, as aforesaid.

The bevel-gearing of the car D differs from thatof the other cars, by the movable character of the shaft of the pinion,'and the arrangement of the axes of both pinions, the said axes both being horizontal.

These pinions are lettered a l). The pinion I) is keyed on the shaft B, but the pinion a, with whichit engages, is provided with reduced 'ends, one of which has a bearing in the vertical end of the'plate K, aiiixcd to the truck, as shown.-

The other end of the pinion has a bearing "in the lower-end of the hand-lever 1, shown dot-ted, whereby the said pinion may be moved, on its inner bearing, as a centre, thus bringing the friction-pinion m, which is affixed to or forms part of the bevel-pinion a, as shown, in contact with the'fiiction-piuion n, on the axle F of the truck, as shown.

A slotted plate, 0, having a slot, '0', (see fig. 2,) serves as a guide for the reduced end of the pinion a, for the said reduced end passes through this slot before entering the bearing in the lever l. The plate 0 is afiixed to the truck, as shown. v

The pinion a has suflicicnt lateral vibration in its inner bearing, in the plate K, to allow it to be brought in or from contact with the friction-pinion it, without any special formation of the said inner hearing; but,

in practice, a spherical hearing may be substituted for the one shownfin order to obtain a more'correct mechanical operation, if desired.

The brakes are held in contact with the wheel by means of the ratchet and pawl-device, shown at 1, q, and 1'. g

In operating these brakes, the lever Z is thrown forward, which brings the friction-pinions m n in contact, and motion is thus communicated to the shafting B B of the train; and the'pinions a being rcvolverh'the chains g are wound, which actnatcs the brakelevers B to bring the brake-blocks G upon the wheels, therebystopping the train.

In practicc, tho hand-lever, and the pinious a b, and fl'lCtlUll-PllllOl'l, may be placcdnndcr the tender.

These improvements can be applied to the cars already in use, without altering the construction of them.

1 claim as new, and desire to secure by Letters each of said parts is constructed, and all are arranged Patentto operate as and for the purpose set forth.

1. The spring 72 and chain g, in combination with The above specification of my invention signed by the spring 71, when constructed substantially as deme, this 11th day of January, 1868. scribed, and operating, in connection with the shaft f \VILLIAM G. FOSTER. and lever E, as and for the purpose set forth.

2. The bevel-pinion a, working in the semicircular frames attached to the truck-frame, and the bevelpinion 11, secured to the longitudinal shaft B, when Witnesses:

J AMES HOLMES, J OHN HoLMns.

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