A New System of Hoist Brake Control

This paper describes the use of the Free Piston Valve, and a simple hoist brake control system, which has been developed over the last two year s, greatly improving the performance of low-pressure brake engines. The basic control system is outlined, with sections devoted to emergency trips and differential braking, and the application of the system to deep shaft hoisting is discussed.
Keywords: Air, brake fluid, hoist, solenoid, torque, Valve, Brakes, Braking, Control, Controls, Emergency, Engines, Hoists, Pressure
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