Railway switches and signals – Electric automatic highway signals – mine doors – and gates
Patent
1975-07-28
1976-11-30
Kunin, Stephen G.
Railway switches and signals
Electric automatic highway signals, mine doors, and gates
49 93, B61L 2904
Patent
active
039944573
ABSTRACT:
A railway pivotal crossing gate is made with a modular construction to facilitate repair of the gate. The gate modules are preferably of alternating colors along the length of the gate and have exposed parallelogram configurations so the gate has slash markings. Each module includes an elongated body that is preferably injection molded from a translucent plastic with a hollow construction. Male and female ends of each module interfit with ends of adjacent modules to permit self-threading fasteners to interconnect the modules in a detachable manner. Lights are mounted within certain modules so these modules glow and thereby light the gate. Interconnected wire harnesses of the modules are utilized to energize the lights. The unlighted modules preferably mount light reflectors. The gate modules may have hollow rectangular or trapezoidal cross-sections, the latter being useful in conserving the material from which the modules are molded. A mounting module at the end of the gate which is pivotally supported has a lower impact strength than the other modules so that the gate breakage normally occurs at this mounting module.
Kunin Stephen G.
National Foundry Sand Company
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