B - Operations – Transporting – 61 – L
Patent
B - Operations, Transporting
61
L
B61L 29/04 (2006.01)
Patent
CA 2316562
A railroad crossing gate mechanism is provided that includes a gate arm adapter which is pivotally mowed to allow a lowered gate arm to rotate away from a generally perpendicular force in a generally horizontal plane. The gate arm mechanism further includes multiple interchangeable spring assemblies that generate a retain force to bring a displaced gate arm back to its normal operating position, and a latch hook assembly for selectively latching the gate arm in its normal position and controlling the rate of return of the gate arm from a displaced position through application of a pivotally leveraged force to a braking surface.
Smart & Biggar
Western-Cullen-Hayes Inc.
LandOfFree
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