Railroad signal with remote light source

Details Railroad signal with remote light source Railroad signal with remote light source

1996-05-10

1997-06-17

Morano, S. Joseph

Railway switches and signals

Signals

Light beam projecting

362 32, B61L 2300, B61L 2924

Patent

active

056390475

ABSTRACT:
An apparatus for providing a light signal to a signal unit at an overhead location along a railway signal structure, particularly a cantilever signal structure having a vertical mast and an arm assembly extending therefrom. Signal units may be located along the mast and/or the arm assembly. A light source is provided at or near ground level so as to be readily accessible by a maintainer and is connected by fiber optic cable to the signal units. Thus, light produced by the light source travels through the optical fiber to the signal units.

REFERENCES:
patent: 3576563 (1971-04-01), Scott
patent: 4283716 (1981-08-01), Pasquali
patent: 4636036 (1987-01-01), Pasquali
patent: 5438485 (1995-08-01), Li et al.
Electronics Engineers' Handbook 3rd Ed. 1989, Donald G. Fink, Donald Christiansen, Editors, McGraw Hill, Inc.--ISBN-0-07-020982-0, pp. 22-30 to 22-34.
Railway Signal Equipment Catalog by Union Switch & Signal Division of American Standard, Inc., Swissvale, Pa, Chapter 10A4, Rev. 8/80, pp. 1, 4, 5.

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