Spring-loaded brake cylinder for an air brake system of a railwa

Details Spring-loaded brake cylinder for an air brake system of a railwa Spring-loaded brake cylinder for an air brake system of a railwa

1974-09-25

1976-05-11

Maslousky, Paul E.

Expansible chamber devices

With separate biasing means for working member

188170, 303 6M, F01B 3100

Patent

active

039554805

ABSTRACT:
A spring-loaded brake cylinder has a piston therein one side of which is loaded by a spring and the other side of which is subjected to compressed air introduced into the cylinder. The cylinder is provided with an auxiliary release device comprising a screw coupling having a first coupling member which is rotatable and supported axially on a portion of the cylinder and a second coupling member threadedly engaged with the first coupling member and acting upon the brake cylinder through an abutment coupling against the force of the load spring. A coupling comprising mutually engaged toothed radial surfaces is provided between a collar attached to the first coupling member and a selectively rotatable worm wheel mounted adjacent the first coupling member. This coupling is engaged only when the pressure acting against the piston is below a predetermined value.

REFERENCES:
patent: 3101219 (1963-08-01), Herrera
patent: 3136227 (1964-06-01), Williams
patent: 3282169 (1966-11-01), Leighton
patent: 3462986 (1969-08-01), Cox, Jr. et al.

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