US77119A - Improved raileoad-sill and ohaie - Google Patents

Description

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Letters .Patent No. 77,119, lated April 21, 1,868..

IMFROVED RAILROAD-BILL AND CHAIR.

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TO ALL WHOM *IT MAY CONCERN:

Beit known that I, JASPER SNELL, o t Pottsvillc, in the county of Schuylkill, and State oi' Pennsylvania,

have invented a new and improved Railroad-Sill and Chair; and I do hereby declare that the following is a full,

clear, and exact description thereof', which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention 'relates to an improved railroad-sill and chair, and consists of a sill of suitable material; and I prefer making it of iron, composed of a base-plate having inclinedwalls set upon it, forming a ti'ough, in the bottom and near cach end whereof is a mortise, in which is laid a spring. l

A plate, provided with twolugs on its under side, dove-tails into the trough; the lugs setting into the mortises and resting on the springs. l' v A T-shaped chair, having jaws at one end to t the shape of the base of the rail, "dove-tails into the trough, and sits upon one-half of the plate. One side of the base of the rail is then inserted between the jaws of." the chair, anda-corresponding chair is'then dove-tailed into the trough, and embraces the other side of the basel ot the rail with its jaws. A sliding plate is then insertcdin grooves in the' wallsof the trough, locking the wholei" A- mortse in the s ides of the trough enables the rail' to riseand fall, by the operation ofthe springs and weight of the cars, and assists to hold the rail'in place.

By the use of this sill and chair, the raill is held far more securely than by any means now used, and the elasticity given, by the use of the springs, will materially diminish the joltiug of the cars; and the wear and tear of rails,chairs, sills, permanent way, and rolling-stock willb'e greatly reduced In the accompanying 4drawings-l 'l Figure 1 is a vertical longitudinal; section of my improved sill-and chair, and

Figure 2 is a transverse section thereof at line :v x. y

Similar letters-ot' reference indicate corresponding parts. A A is the base-plate of sill, 'having walls B B set upon it, inclined toward eachother, as shown in iig. 2,

but at suiiieient distance apart to admit of the plate C and chairs D dove-tailing between them, as hereinafter described.

One end of the sill is closed by the wall E, and the other by the sliding plate F sliding in groovesfvin the walls B and base-plate A. e

The walls AB are strengthened by trusses b, as shown in g. 2.

In themortises ain the base-plate A are placed the springs G, on which rests the lng d attached to the' bottom of the plate C. I l

The plate C being dove-tailed between the walls B, and i-t's lugs resting on the springs, the yTshaped chair D is then dove-tailed between them, and driven up' against the wall E, with its jaws d d directed outward, the' chair D resting on the plate C. The rail H' is then placed upon the sill, its base, t, being inserted, across the walls B B, in mortises in the upper part of said,l walls fitted to receive it; one side of the'base beipg inserted in the `iaws del of the chair D. The-other chair D is then dove-tailed between the walls B,and embraces the other side of the base ofthe rail A with its jaws, and the sliding plate F is then inserted in the groovesf, locking the' whole arrangement.l

The chairs'D are provided with a neck, cl, having a rectangular vertical section, to allow the chair to move up andidown between the walls B, according as the springs G are acted upon or released by the weight of the cars, and keep the neck ofthe chair home to the walls B B in every position. Y

I claim as new, and desire to secure by Letters Patenti 1. The baseplate A, walls B, and springs G, all substantially as and for the purpose set forth and described.

2. The plate C, dove-tailing between the-walls B, and provided with the lugs c, substantially as -above set forth and described.

3. The chairs D, dove-talng'betwee tho walls B, on'dprovded withV the jaws del, in manner substatally 4. The railroad-si1l-and chair, consisting of a bose-plate, A, walls B, `and plot@ C, restixng on' springs G, in combination with chairs D, furnished with the jaws d d, in manner an'd for 'the purposes substantially as above Y' set forth and described.

JASPER SNELL. Witnesss:

Gr. W. SGHUERR, Cms. FRAILEY,

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