Trolley braking method and apparatus for use with conveyors

Details Trolley braking method and apparatus for use with conveyors Trolley braking method and apparatus for use with conveyors

1988-04-15

1990-02-20

Basinger, Sherman D.

Railways

Car stops

Special track

188 62, B61H 1300

Patent

active

049016482

ABSTRACT:
A weight bearing trolley moves along a track having flanges between which a guide wheel of said trolley is positioned. The movement of the trolley is monitored to determine when braking is desired and, when desired, pressure is applied to said guide wheel, forcing it into contact with one of said flanges and producing frictional retarding force braking said trolley. A fail-safe actuator utilizes fluid pressure to keep a brake operating spring compressed when braking is not wanted.

REFERENCES:
patent: 1802109 (1931-04-01), Evans et al.
patent: 3285195 (1966-11-01), Babson
patent: 3301413 (1967-01-01), Coursey
patent: 3705554 (1972-12-01), Aksamit
patent: 3929079 (1975-12-01), Eliassen
patent: 3948187 (1976-04-01), Moore
patent: 4603639 (1986-08-01), Sleep
patent: 4790247 (1988-12-01), Summa

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