Improvements in or relating to safety devices for lift cages

Abstract

516,618. Locking and unlocking lift cages. POWNER, E. D., and POWNER, W. D. May 25, 1938, No. 15571. [Class 78 (iii)] The fastening for the cage gate of a lift is adapted to lock the starting gear when the gate is opened and release it when the gate is closed by providing a spring-loaded detent to engage a notched slide bar or rack connected to tne starting gear, disengagement being effected, in the closing position of the gate, by a cam actuated by a beak on the gate picket when the gate is closed. Fig. 3 shows the fastening with the catch lever 4 engaged by a beak 5 on the end picket 3 of the gate and with a spring-loaded detent 8 adapted to engage a notch in a slide bar 9 connected with the starting gear. In the closed position of the gate a second beak 11 on the picket 3 rocks a cam 12 which through an arm 13 withdraws the detent from the bar. If the lift gate should be opened with the lift in motion the detent 8 is released and engages the slide bar 9 which is thereby lifted to arrest the lift.

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Cited By (4)

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    CN-102372209-AMarch 14, 2012苏州富士电梯有限公司Safety device for elevator overhaul
    CN-102530667-AJuly 04, 2012希姆斯电梯(中国)有限公司Safety device for elevator maintenance
    CN-105775951-AJuly 20, 2016哈尔滨市三和佳美科技发展有限公司Lift safe operation automatic locking device
    EP-1213249-A1June 12, 2002Inventio AgDispositif de freinage pour ascenseur