B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
364/35
B66B 3/02 (2006.01) B66B 1/30 (2006.01) B66B 1/50 (2006.01) B66B 5/02 (2006.01)
Patent
CA 1107416
47,086 ABSTRACT OF THE DISCLOSURE An elevator system including an elevator car and counterweight mounted for guided vertical movement in the hoistway of a building. A magnetically operated detector mounted on the elevator car cooperates with a magnetic shield disposed in the hoistway to noiselessly provide signals which indicate when the elevator car and counterweight are in a predetermined collision zone where collision is possible should the counterweight deviate from its normal travel path. The detector also provides signals when the elevator car and counterweight are outside the collision zone, which signals indicate the relative positions of the elevator car and counterweight.
299492
Husson Alan L.
Koob Robert W.
Mcconnell And Fox
Westinghouse Electric Corporation
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