US37668A - Improvement in railroad-chairs - Google Patents

Description

J. ARMITAGE. RAILROAD CHAIR.

No. 37,668. Patented Feb. 17, 1-863.

W724 s aw UNITED STATES PATENT OFFICE.

JOHN ARMITAGE, OF TROY, NEW YORK.

IMPROVEMENT IN RAILROAD-CHAIRS.

Specification forming part of Letters Patent No. 37,668, dated February 17, 1863.

To all whom it may concern Be it known that I, JOHN ARMITAGE, of Troy, in the county of Rensselaer and State of New York, have invented a new and useful Improvement in Chairs forItailroad-Rails; and Ido hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making apart of this specification, in which- Figure l is a longitudinal vertical section of my invention, taken in the line or m, Fig. 2. Fig. 2 is a plan or top "iew of the same.

Similar letters of reference indicate corresponding parts in the two figures.

.This invention consists in constructing the chair with an adjustable or hinged jaw, so ar ranged as to admit of a rail being removed from the chair, and also fitted or secured in it without detaching the chair from the sleeper, thereby effecting a saving in labor and expense, and also avoiding the injury hitherto done to the sleepers in consequence of the repeated driving in and withdrawing of spikes from the latter.

To enable those skilled in the artto fully understand and construct my invention, 1 will proceed to describe it.

A' represents the base-plate of the chair, which is bent over at one end and curved so as to form a fixed jaw, B, of such a shape as to fit snugly to thebase and neck of the rails 0, as shown clearly in Fig. 1. The base-plate at-the opposite end is bent over parallel with the main portion, and rests upon it, as shown at I).

E represents an adjustable or hinged jaw, the shape of which is precisely similar to the fixed jaw 13. The lower part of the jaw E is connected by a hinge, F, to the part D of the base-plate A, and this hinge may be formed by turning over the end of the part D in tubular form, as shown at a, so as to receive a pin, G, which also passes through a similar tube, 1), formed on the end of a shank, H, at the lower part of the jaw E, theztube b being fitted in a slot made transversely in the tube a. (See Fig. 2.) The two jaws B E are fitted snugly. to opposite sides of the necks of the rails G O, and are firmly secured thereto by screw-bolts I I, which pass through both jaws and transversely through both rails O U. The base-plate A is bolted to the sleeper, and is designed to be permanently attached thereto or never to be removed, unless a new sleeper or a new chair is required.

In order to remove a rail, the bolts I are removed and the hinged jaw E turned back or outward from the rails, as shown in red outline in Fig. 1. This admits of a rail being removed from the chair and replaced therein with the greatest facility, and the chair is strong and durable, as the hinge may be made sufficiently massive to insure a firm connection of thejaw E to the base-plate.

Thisinvention is applicable to either wrought or cast iron chairs.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination of the fixed'and hinged jaws B E and screw-bolts I with a base-plate, A, arranged substantially as and for the purpose'set forth.

JOHN ARMITAGE. Witnesses:

WILLIAM BRAGANELL, WILLIAM F. MAHER.

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