US98621A - Improved railway-car brake - Google Patents

Description

PEASE & SKINNER.

Car Brake.

No. 98,621; I Patented Jan-4, H870.

F I y MP ETERS. FHOTO-LITHDGRAPHER. WASHINGTON. D, c.

idnitmi sca I strut Gtiiiiiw.

o, s. PEASE, or XENIA, AND L. n. sKINN n'or CINCINNATI, oII o.

Letters Patent No. 98,621, dated J unitary 4, 1870; antedcted December 24, 1869.

IMPROVED RAILWAY-CAR BRAKE.

The Schedule referred to in these Letters Patent and making partof the same.

To all whom it may concern;

Be it known that we 0. S. PnAsn, of Xenia, in the county of Greene, and State of Ohio, and L. E. SKIN4 NER, of Cincinnati, in the countyof Hamilton, and

. State of Ohio,-have invented certain new and useful Improvements in Railroad-Oar Brakes; andwe do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon, making part of this specification, in which- Figure l is a side view.

Figure 2 is a bottom view.

' Figure 3 is a horizontal sectional view, showing a portion of the operating-mechanism.

Figure 4 is a horizontal sectional view, showing the arrangement of endless chain and pressure-pulleys.

Figure 5 is an end view, showing arrangement of lever and chain that operates the pressure-pulley. Figure 6 is a plan.view, showing the position of lever, roller, and chains, when the brake is on. v

The nature of our invention consists in securing, on a suitable bearing bolt or pin, on the under side of the central timber of the car, a horizontal lever. This lever has attached to its outer ends, chains running in different directions, and through rods these chains are connected with the brake-bars at the opposite ends of the cars. There is also secured to this lever another chain, which is attached to a roller resting in suitable bearings immediately above the inner of the rear axles. This roller is connected bymcans of endless chains and pulleys with said axle. The endless chain, by a roller, is rendered taut at any moment, which imparts motion to the roller, which in turn winds the chain that is attached to the horizontal lever, and thus operates the entire mechanism.

Our invention also consists in securing on the roller to which the chain is attached which works the lever, and the chains and rods that operate the brake-bars, an adjustable spring, whereby the pulleys over which the endless chain passes can always be kept in line, no matter to how great a degree the metal may be afl'ected by expansion or contraction produced by atmospheric action or other causes.

To enable others skilled in the art to make and use our invention, we will now proceed to describe its.

construction and operation.

A is the frame-work of the body'of the car, and is constructed in the usual manner.

It is secured on two trucks, B B, by means of kingbolts, or other equivalent device. I

On the under surface of these trucks, at proper distances, and in suitable bearings, are secured axles b b and l) 1), two in each. On the axlel), which is the forward one of the rear truck, we secure apulley, b

Immediately above this aXle,-and parallel thereto, we secure, in suitable bearings, a shaft, 0.

On this shaft, and at a position exactly above the pulley b we secure a pulley, 0.

Over these pulleys, b and c, we pass an endless chain, band, or;other equivalent device, 0. The length of this endless chain is such that the axle, except when the brake is desired to be applied, revolves freely without imparting motion to either the shaft 0 or pulpheric action or other cause.

Immediately in the rear of the shaft O, and on the face of the central cross-piece of the truck, is secured a rod, D.

From this rod D descend two bearing-plates d (7, between which is secured a pressure-pulley or roller, cl.

To this rod D is also secured an upright arm, (1 which, by mcansof a chain, D, is connected with a lever, D", by which it is worked, said lever being socured. on the platform of the car.

There is also secured on the platform or other portion of the car, and on a line with the upright arm cl, a grooved shoulder or pin, (1, around which the chain D passes before reaching the lever D and around which the chain is drawn when the pressure is applied.

To the shaft 0 there is attached one end of a chain, e.

The other end of this chain is attached to a horizontal bar or lever, E, which works on a suitable bearing-bolt, secured on the under side of the central horizontal timber of the car.

To, this lever E are also secured two chains 0 c, as is clearly shown in detail in fig. 6. These chains are secured at such points on the lever, one chain being secured on each side of its bearing-bolt, that they are efl'ected by its opposite draught.

These chains 6' e are attached to upright levers F F, which are fulcrated in bent bearings, secured on the ends of the rods F F.

These rods F'Fare secured by means of screw and nut, or other equivalent device, to brake-bars G G.

Each of these brake-bars G G is provided with two brake-shoes H H.

The operation is as follows:

The brake-lever D is in they position shown in fig. 5, the brakes being all up. To apply the brake, you simply have to move the lever D in the direction indicated by the arrow, and this will cause the chain D through the upright arm d, to revolve the rod a suflioientdistance to throw, with immense pressure, the

pulley or roller (1 against the endless chain c, which will become immediately locked. So soon as it is locked,

the momentum of the car will revolve the shaft 0.

This revolution of the shaft 0 will wind the chain c,

which, in turn, drawing, on the lever E, causes the chains 4; e to work the upright arms or levers F F,"

\Vhat we claim therein as new, and desire to secure by Letters Patent of the United States, is-- 1. The shaft 0, when the same is provided with an adjustable spring, 0', pulleys c b, endless chain c, and

pulley or roller 41, when the same are so combined and arranged as to operate substantially as described, as and for the purpose specified.

2. The shaft 0, chain 6, lever E, chains-e e, upright levers F F, rods or arms F F, when the same are so combined and arranged as to impart simultaneous mo-' tion to the brake-bars and shoes, substantially as described, as and for the purpose specified.

In testimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

O. S. PEASE. L. E. SKINNER.

Witnesses:

EDWIN JAMES, EDM. I Bnowx.

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