Chucks or sockets – With fluid-pressure actuator – Socket type
Patent
1974-08-13
1976-08-17
Meister, J. M.
Chucks or sockets
With fluid-pressure actuator
Socket type
279 1SG, 279106, B23B 3114
Patent
active
039750299
ABSTRACT:
A pair of eccentrically pivotally mounted vise arms on a base plate element disposed concentrically on a rotatably driven drillhead are urged by centrifugal force during rotation into lockable gripping contact with a drill steel element held in the drillhead.
REFERENCES:
patent: 2450970 (1948-10-01), Lance et al.
patent: 2729038 (1956-01-01), Hutchins
Meister J. M.
Ryan Maurice W.
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