US478426A

US478426A - Silas harris

Info

Publication number: US478426A
Authority: US
Publication date: 1892-07-05
Anticipated expiration: 1909-07-05

Description

(No Model.)

S. HARRIS.

RAILWAY CHAIR.

No. 478,426. Patented July 5, 1892.

mine-wes:

UNITED STATES PATENT OFFICE.

SILAS HARRIS, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO THE PACIFIC ROLLING MILLS COMPANY, OF SAME PLACE.

RAILWAY-CHAIR.

SPECIFICATION forming part of Letters Patent No. 478,426, dated July 5, 1892. Application led October 16, 1891. Serial No. 408,921. (No model.)

To a/ZZ whom it may concern.-

Be it known that I, SILAS HARRIS, a citizen of the United States, residing in the city and county of San Francisco, State of California,

have invented certain new and useful Improvements in Railway-Chairs; and I hereby declare the following specication and drawings accompanying the same'to be afull, clear,

Y and exact description of my invention.

ro My invention. relates to what are known as railway-chairs, employed for supporting railway-bars and attaching them to the sleepers or ties; and it consists in forming such chairs of two members or parts joined by rivets and having aA uniform section bent to such form as to give' flat foot-plates at each side, angular diagonal and braced vertical webs in contact with each other near the upper fianges, and a flat bearing area on the zo top, on whichthe rails are held by clamphead boltsat each side.

The object of my invention is to secure a simple and inexpensive manufacture of such chairs and avoid the more expensive processes and implements required with turnover flanges when the whole chair is formed in one piece.

Referring to the drawings, Figure 'l is a perspective elevation of one of my improved 3o railway -chairs with a section of the rail mounted therein and the chair attached to a sleeper or tie in the usual manner. Fig. 2 is an end View of one of my improved chairs, showing` its transverse section and with a rail fastened thereon. Fig. 3 is a plan view of the same chair.

Similar letters of reference on the dierent figures indicate corresponding parts.

The base-flanges A A2 are made to fit on a sleeper or tie and with a bearing area suffi- 'cient to prevent crushing the wood beneath and perforated to receive the. holding-down spikes B, driven down into the sleeper or tie H in the usual manner.

The vertical members or webs C C2 are set at an angle, as shown, so as to give greater lateral stability to the chair, especially on 'curves,'and to enable the two members t-o be joined by the rivets D at the top, as shown in 5o the drawings.

The top iianges E E2 are formed parallel to the base-flanges A A2 and of a sufficient width to receive the rail F and alsothe clampbolts G G2, which nip the bottom flanges of ythe rail F and hold it firmly against strains in all directions.

AIt will be observed that either of the main members forming the chair is by itself a very simple form that can be produced by common implements in a rapid manner and that 6o when joined by riveting, as shown, the stability and strength of the chair as a whole is not impaired by this method of construction.

Having thus explained the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a railway-chair, the combination of the two duplicate members having parallel top and bottom horizontal iianges and diagonal webs between said flanges, said webs being in 7o contact with each other at a point near the upper anges and being considerably distant from each other at the point where the bottom flanges rest upon the tie, the rivets D for securing the webs together, as shown, and the clamping-bolts G and G2, which nip the bottom iianges of the rail and hold it firmly against strains, substantially as described.

2. In a railway-chair, the combination of the two duplicate 1nembers,one of which has 8o the base-flange A', fitting upon the sleeper, the upper parallel iiange E', on which the rail rests, and the intermediate inclined web C', and the other of which has the bottom horizontal flange A2, resting on the sleeper, the upper parallel flange E2, which supports the rail, and the intermediate inclined web C2 between the upper and lower iianges, the rivets D for fastening the two webs securely together at the top, the clamping-bolts G and 9o G2, hold in the Iianges E and E2 and nipping the bottom iianges of the rail, and the spikes B, which secure the flanges A and A2 to the sleeper or tie, substantially as described.

Intestimony whereof I have hereunto affixed my signature in the presence of two witnesses.

SILAS HARRIS.

Witnesses:

ALFRED A. ENQUIST, WILSON D. BENT, Jr.