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LEVER-TYPE SAFETY DEVICE FOR A LIFT

Abstract

Levers 2 and 3, turning about fixed axes A and B, have slots b into which pin e of member 6 enters. The lift cage is suspended from the wire rope on eye a of tie-rod 4. During normal operation of the lift, leaf spring 1 is held tightly against frame 5. If the rope breaks, spring 1 is released, pulling tie-rod 4 with eye a downward, and pin e of member 6, sliding along slots b of levers 2 and 3, turns these levers about axes A and B. This engages the interlocking device which stops the lift cage and keeps it from dropping. $493$SL,S$

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