Crossing gate counterweight adjustment

Details Crossing gate counterweight adjustment Crossing gate counterweight adjustment

1998-10-15

2000-11-07

Le, Mark T.

Railway switches and signals

Electric automatic highway signals, mine doors, and gates

246261, 49 49, 74 8915, 16400, B61L 2900

Patent

active

061424269

ABSTRACT:
A screw-threaded counterweight adjustment apparatus is journaled in end journals provided with brackets for attachment to the interior of a railroad crossing gate arm casing preferably by jam-type threaded fittings. A traveler is threaded over an elongated helically threaded rod rotatably mounted in the journals. A guide on one side of the traveler fits in an adjustment slot in the casing and a counterweight supporting rod or pin extends from the guide for attachment and support of the counterweights. The helically threaded rod is manually rotated by a wrench or by a motor to move the traveler and guide longitudinally on the counterweight section of the gate when it is desired to adjust the position of the counterweights.

REFERENCES:
patent: 4067523 (1978-01-01), Kenny et al.
patent: 4090685 (1978-05-01), Pappas
patent: 4512208 (1985-04-01), Lipinski et al.
patent: 5910192 (1999-06-01), Pulford et al.

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