Lift

Details Lift Lift

1988-06-15

1990-05-29

Huppert, Michael S.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187108, B66B 516

Patent

active

049287966

ABSTRACT:
A lift is provided with a detector for sensing when the brakes are engaged and the motor is disengaged. A tachometer detects movement of the lift, the lift slipping despite the engagement of the brakes, and causes the sensing means to activate a wire clamp, which clamps an endless wire. The stopping of the endless wire causes clamps within safety gears on the lift to grip guide rails alongside the lift and so stop the descent of the lift.

REFERENCES:
patent: 1132770 (1915-03-01), Gale, Sr.
patent: 1924320 (1933-08-01), James
patent: 1924321 (1933-08-01), James
patent: 1977452 (1934-10-01), Neuschotz
patent: 2716467 (1955-08-01), Callaway
patent: 2792080 (1957-05-01), Dunlop

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