B - Operations – Transporting – 61 – L
Patent
B - Operations, Transporting
61
L
B61L 5/18 (2006.01)
Patent
CA 2180612
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 maintained 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.
Boget Paul J.
Chew James P.
Macrae & Co.
Union Switch & Signal Inc.
LandOfFree
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