Overspeed safety braking device

Details Overspeed safety braking device Overspeed safety braking device

1983-11-09

1985-07-30

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

188187, 188 727, B66B 516

Patent

active

045316171

ABSTRACT:
An overspeed safety braking device comprising an input shaft, the speed of which is to be braked when it exceeds a limit value, a rotary friction brake having a fixed part and a rotary part, the input shaft being permanently coupled for rotation with the rotating part of the rotary friction brake, a control device for applying the brake, and centrifugal activated structure comprising a braking member which rotates with the input shaft when the speed is below the limit value, a weight pivotally mounted on the braking member and biasing spring coupled to the weight and arranged to bias the weight toward the axis of rotation of the shaft when the speed is below the limit value and away from the axis of rotation when the speed is above the limit value.

REFERENCES:
patent: 3327811 (1967-06-01), Mastrobirte

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