Foods and beverages: apparatus – Cooking – Intercontrol or safety control
Patent
1976-10-01
1978-06-20
Hornsby, Harvey C.
Foods and beverages: apparatus
Cooking
Intercontrol or safety control
99443C, 137 68R, 198856, A23B 400, A23L 302, B65G 4306
Patent
active
040955150
ABSTRACT:
An overload indicator particularly adapted for use with driving and driven components of a meat processing system conveyor to indicate when an overload condition takes place. A frangible member of the indicator is preferably embodied as a shear pin that normally connects the driving and driven components and includes an internal gas chamber which is communicated with the environment as the pin fractures in shear due to overloading. Pressurized gas supplied to the gas chamber of the shear pin decreases in pressure as the pin fractures and this pressure decrease is sensed to indicate the occurrence of an overload condition. A conduit for supplying the pressurized gas to the gas chamber of the shear pin preferably includes a restricted orifice through which the gas is fed by a compressor, and a pressure sensitive valve downstream from the restricted orifice senses the pressure decrease due to an overloading pin fracture. The driving and driven components of a meat processing system conveyor incorporating the indicator are preferably a driven reciprocating beam and a drive cylinder that reciprocates the beam. A flexible hose is connected to the shear pin within a housing of the system and feeds the pressurized gas to the shear pin which moves along with the reciprocating beam. The overload indicator is preferably interconnected with the drive cylinder operation so as to terminate its operation when an overload condition occurs.
REFERENCES:
patent: 1414075 (1922-04-01), Dodds
patent: 2325213 (1943-07-01), Allbright
patent: 3070109 (1962-12-01), Crandall
patent: 3241402 (1966-03-01), Crowell
patent: 3747510 (1973-07-01), Gladd
Gladd Industries, Inc.
Hornsby Harvey C.
Pous Robert
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