B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
364/9
B66B 1/40 (2006.01)
Patent
CA 1059664
ABSTRACT OF THE DISCLOSURE A halt selector system for a vehicle movable along a defined path, such as an elevator, comprises at least one bistable unit associated with each halt position and adapted to assume one state when the vehicle is located at one side of the halt position and its other state when the vehicle is located at the other side of said halt position, and a switch-over device for switching the state of said bistable unit when the vehicle is moving along the path and is at a predetermined distance from the halt position such that the vehicle can be stopped at said halt position. A transmitter, associated with a control circuit which includes the bistable device, is adapted to send one of three distinguishable signals to a receiver and associated operating unit for the drive machinery of the vehicle. The transmitter emits a first signal when the vehicle is at one side of the halt posi- tion to indicate that the vehicle is to be driven in one direction, emits a second signal when the vehicle is on the other side of the halt position to indicate that the vehicle is to be driven in the opposite direction, and emits a third signal in response to the switching of state of the bistable device to stop the vehicle at the nearest halt position in the travel direction of the vehicle.
263707
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