System for supporting overhead trolley rail

Details System for supporting overhead trolley rail System for supporting overhead trolley rail

1979-09-12

1981-09-01

Bertsch, Richard A.

Railways

Trolley rails

Hangers

104 93, 105150, E01B 2524

Patent

active

042865239

ABSTRACT:
A system for supporting an overhead trolley rail which requires a minimum of simple parts and wherein the trolley rail is supported from washer-like elements each having a centrally-disposed opening therein and at least one curved portion depending downwardly from the element. A bolt extends across the curved portion and supports two L-shaped keepers each having one leg through which its associated bolt extends and a second leg which underlies a flange on a trolley rail, which in most cases comprises an I-beam. A single roof bolt extends through the centrally-disposed opening of the washer-like element and into a mine roof or the like, the single roof bolt comprising the sole support for the washer-like element.

REFERENCES:
patent: 1128909 (1915-02-01), Sheridan
patent: 1592814 (1926-07-01), Harris
patent: 1846178 (1932-02-01), Berfren
patent: 3219199 (1965-11-01), Lagerstrom
patent: 3837609 (1974-09-01), Weiss et al.
patent: 4116134 (1978-09-01), Troth

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