Cutlery – Cutting tools – Plural cooperating blades
Patent
1975-02-11
1976-11-02
Smith, Al Lawrence
Cutlery
Cutting tools
Plural cooperating blades
301233, B26B 1924, B26B 1934
Patent
active
039888282
ABSTRACT:
Apparatus for shearing sheep and other animals comprises a handpiece provided with a reciprocating fluid operated motor, the reciprocating element of which directly actuates a transversely oscillatable cutter operating member. The handpiece is connected by flexible tubing to power generating means by which successive pressure pulses are imparted to the fluid, preferably a hydraulic fluid, such pulses being transmitted through the tubing to the motor so that the cutter operating member of the handpiece is oscillated in unison therewith. The said power generating means preferably comprises a master cylinder which communicates with a hydraulic fluid reservoir which maintains the system full of fluid and said pressure pulses are produced by a plunger which is reciprocated in the master cylinder by power operated means. The master cylinder, also, preferably communicates with a transfer chamber, the volumetric capacity of which may be varied by operation of manual control means, whereby when its capacity is increased beyond its normal operating capacity, liquid passes thereinto from the master cylinder to interrupt the production of said pressure pulses in the master cylinder while said power operating means continues to operate.
REFERENCES:
patent: 1214430 (1917-01-01), Cook
patent: 1958912 (1934-05-01), Clark
Peters J. C.
Smith Al Lawrence
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