William F Burr

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

1. In a railway-switch, one of the track-rails at the siding adjacent its junction with the main track provided with a roller rotatably mounted and having a portion of its periphery normally protruding above the rail-tread.

2. In arailway-switch, one of the track-rails at the siding adjacent its junction with the main track provided with a roller rotatably mounted, and spring-supported, and having a portion of its periphery normally protruding above the rail-tread.

3. In a railway-switch, one of the track-rails at the siding adjacent its junction with the main track provided with two rollers rotatably mounted one in advance of the other and having portions of their periphery protruding above the rail-tread so that both may simultaneously receive bearing thereon of the rim of the car-wheel, for the purpose set forth.

4. In a railway-switch, one of the trackrails at the siding adjacent its junction with the main track provided with a roller rotatably mounted and at a short distance therebeyond and with another roller, and springsupported, and having a portion of its periphery normally protruding above the railtread.

5. In a raihvay-switch, one of the trackrails at the siding adjacent its junction with the main track provided with an aperture, a roller having its upper peripheral portion normallyprotruding above the top of the rail through said aperture, a journal-support for said roller, located below the apertured portion of the rail, and a supporting-spring for said journal-support.

6. In a railway-switch, one of the trackrails at the siding adjacent its junction with the main track, provided with an aperture, a roller having its upper peripheral portion protruding above the top of the rail through said aperture, a journal-support for said roller, located below the apertured portion of the rail, a supporting-spring forsaid journal-support, and a casing or housing inclosing the spring.

7. In a railway-switch, one of the trackrails orportions comprising the rail-tread at the siding adjacent its junction with the main track provided with the aperture 1) and the upright d thereunder having the upwardlyopening recessfin its upper portion, theyoke or journal supporting frame (1 encircling the upright and having the roller D rotatably mounted therein with its upper peripheral portion protruding above the rail-tread, the spring G supporting the yoke, and the inclosing casing i, substantially as described.

8. In a railway-switch, the plate or frog comprising the tread portion a which is a continuation of one of the branch tracks ofthe railway, constructed with the aperture 12 and the socket m, the roller j rotatable in said socket m, and having aportion of its periphery protruding above the top of the plate, the upright (I mounted below the aperture 1), the yoke or frame g, the roller D journaled in said yoke, and having an upper edge portion thereof normally protruding above the tread of the rail, the spring G and the inclosing housing or casing i, all substantially asdescribed.

\VM. F. BURR.

Witnesses:

WM. S. BELLoWs, M. A. CAMPBELL.