B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
187/19
B66B 1/06 (2006.01) B60P 1/44 (2006.01) B66F 17/00 (2006.01)
Patent
CA 1187423
ABSTRACT An elevator mechanism device having first and second platforms mounted in a frame for movement relative to one another wherein a nip is formed between a lower edge of the first platform and an upper edge of the second platform as they move toward one another and wherein an electrically operated control circuit is provided for controlling the movement of the platforms relative to one another, the improvement of a flexible skirt extending below said lower edge of said first platform across the width of said nip whereby during movement of the platform to close the nip, the trip means will be engaged by an deflected by any object which may project into said nip, a circuit breaker means operable to de-activate said control circuit, trip means communicating between each end of the flexible skirt and said circuit breaker means to activate the circuit breaker means to de-activate said control circuit when said trip means is deflected to an extent less than that required to permit said object to be clamped between said first and second platforms.
421050
Canadian Liftgates Inc. / Les Hayons Canadiens Inc.
Fetherstonhaugh & Co.
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