Actuator mechanism

Details Actuator mechanism Actuator mechanism

1991-10-15

1993-07-13

Huppert, Michael S.

Railway switches and signals

Electric actuation

Control circuits

246415A, 323234, 337140, 60528, B61L 506, H01H 7118

Patent

active

052266192

ABSTRACT:
An electrically-controlled actuating mechanism comprises a length of shape memory wire. A source of electrical current passes electricity through the shape memory wire and a voltage regulator controls the voltage applied to the wire. The actuating mechanism is particularly advantageous as an actuator for a model railway track switch.

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