Self adjusting hoist brake

Details Self adjusting hoist brake Self adjusting hoist brake

1977-11-14

1979-03-06

Halvosa, George E. A.

Brakes

Wheel

Axially movable brake element or housing therefor

188171, 188196BA, 192 7026, 192 7027, 192 90, 192111A, 310 77, F16D 6556

Patent

active

041426100

ABSTRACT:
A hoist brake with an incremental self adjusting feature. The brake has interdigitated plates which will stop a driven shaft when engaged and allow the shaft to rotate when not engaged. The brake is normally biased into an engaged position and an electromagnet is provided to disengage the brake. A sensing apparatus is provided which measures the gap traversed by a portion of the brake when the brake is activated, the traverse indicating the amount of wear which has taken place since the last adjustment. When the amount of wear is greater than a predetermined amount, the distance between the electromagnet and associated plate on which it acts is incrementally reduced the next time the brake is activated to adjust the gap and insure continued proper performance.

REFERENCES:
patent: 2966240 (1960-12-01), Aude et al.
patent: 3289797 (1966-12-01), Brzezinski et al.
patent: 3613849 (1971-10-01), Pape
patent: 3783984 (1974-01-01), Knapp et al.

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