Chucks or sockets – With fluid-pressure actuator – Socket type
Patent
1988-05-16
1991-01-15
Bilinsky, Z. R.
Chucks or sockets
With fluid-pressure actuator
Socket type
81 16, 81436, 81 60, 408241R, B25B 1344
Patent
active
049848445
ABSTRACT:
A safety key for a toolroom lathe chuck having (1) a housing having a top end, a bottom end and an internal bore opening on the bottom end and extending towards the top end, (2) a sleeve concentrically surrounding said housing and axially slidable thereon between a first position and a second position, (3) a handle connected to and extending transversely to the top end of the housing, (4) a key member sized to be movably received in the internal bore of the housing at the bottom end thereof, (5) securing apparatus for securing the key member to the sleeve, (6) a spring for biasing the sleeve into its first position when no axially downward pressure is applied to the sleeve, whereby the key member will be completely withdrawn into the internal bore of the housing, and (7) a lever attached to the handle for applying axially downward pressure to said sleeve, the lever being adapted to provide such downward pressure to the sleeve when the lever is moved towards the handle, whereby the sleeve may be moved axially downward along the housing from its first position towards its second extended position so that the bottom end of the key member will protrude from the housing.
REFERENCES:
patent: 1506331 (1924-08-01), Benko
patent: 2690690 (1954-10-01), Garton
patent: 3424212 (1969-01-01), Kemper
patent: 4706415 (1987-11-01), Okada et al.
patent: 4781083 (1988-11-01), Cummings
Bilinsky Z. R.
Schultz Robert
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