US152567A - Improvement in railway-chairs - Google Patents

Description

-2 Sheets--Sheet 1. W. MANSFIELD. Railway Chairs. No.152567, n Patentedlun$30,1874.

2Sheets-Sheet2- W. MANSFIELD. A

Railway Chairs.

Patented June 30,1874.

UNITED STATES PATENT OFFICE.

TILLIS MAN SFIELD, OF NEV HAVEN, CONNECTICUT, ASSIGNOR TO HIM SELF AND JOSEPH I?. BRONSON, OF SAME PLACE.

IMPROVEMENT IN RAILWAY-CHAIRS.

Specification forming part of Letters Patent No. 152,567, dated June 30, 1874; application filed April 10, 1874.

To alt whom it may concern:

Be it known that I, WILLIS MANsFinLD, of New Haven, in the county of New I-Iaven and State of Connecticut, have invented a new Improvement in Railway-Chairs; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon,to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in t Figure l, a top view of the chair as holding the rail; Fig; 2, a transverse section through the chair on line a; m; Fig. 3, a top view as applied to a frog; Fig. 4, a transverse section through one of the bolts.

This invention relates toan improvement in chairs and like devices for. securing railroadrails, the object being to firmly hold the rail, and yet give to it a semi-elastic bearing; and it consists in constructing the chair in two parts, combined with a wood bearing, or bearing of similar material, for the rail, and a key, by which the said bearing is forced up against the rail, as more fully hereinafter described.

A is the one part of the chair, and B the other part, the two parts meeting at the center beneath the rail, as seen in Fig. 4, each part formed, respectively,with an ear, a b, between which the rail sits. These two parts are secured together by bolts C, extending through from side to side, as seen in Fig. l. Between the parts A B a recess is formed, into which is set a block, D, of wood or similar materia-l, and beneath, transversely through the chair, a mortise, E, is formed, into which is driven a key, F, to force the block D upward. Each side of the rail is placed a wood cheekpiece, f. The two parts ofthe chair are placed on the rail, as seen in Fig. 2, and, by means of bolts, drawn hard down upon the cheek-pieces f. Then the key F is introduced, and driven to force the block D hard up against and so as to take the entire bearing of the rail G. This prevents the rail from coming in actual contact with the metal of the chair. This chair may be used directly on every tie, or only used as a means of connecting the two ends of the rail. Incase the cheek-pieces j' are not required, the ears c b should be formed so as to grasp the rail; but I prefer the use of the wood cheek-pieces. This construction of chair is peculiarly adapted to the construction ot' frogs, it only being required to divide the chair at each rail H H, Fig. 3, and centrally beneath the point I. The same blocks D are used beneath each rail, and preferably the same cheek-pieces f, thus enabling me to construct an elastic frog in an extremely cheap and durable manner. Thus I make every chair or bearing elastic, and materially take away from the wear of the rail.

This chair is peculiarly adapted to the construction of street-railways, in that a greater depth is given to the chairs than in those usually employed, and they may be placed directly on the ties, and give sufficient depth for paving above the ties, and dispense with the Stringer.

An elastic material, as india-rubber, maybe introduced between the rail and key; but in such case the seat D should be divided, and the india-rubber inserted between the two parts.

I claim as my invention- A railwaychair formed from the two parts A B, secured together by transverse bolts C,

Veach part provided, respectively, with an ear,`

a b, combined with the seat D and the key F beneath the said seat, substantially as set forth.`

YVILLIS M'ANSFIELD.

Vitiiesses:

A. J. TIBBITs, J. H. SHUMWAY.

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