E - Fixed Constructions – 02 – B
Patent
E - Fixed Constructions
02
B
254/132, 61/44
E02B 7/36 (2006.01) B66F 3/02 (2006.01)
Patent
CA 1042674
ABSTRACT OF THE DISCLOSURE A lifting apparatus wherein a cone rack mechanism having cone piece interlocked to driving gears is driven by such driving gears, which are connected and controlled by a special friction clutch mechanism, a latch mechanism, and a centrifugal brake, for continuing the lifting and lowering of a body, such as a water gate.
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