Cutting by use of rotating axially moving tool – Tool or tool with support – Having inversely angled cutting edge
Patent
1977-02-09
1978-10-31
Weidenfeld, Gil
Cutting by use of rotating axially moving tool
Tool or tool with support
Having inversely angled cutting edge
90 11D, 408238, 408239A, B23C 526
Patent
active
041227557
ABSTRACT:
A tool holding assembly wherein a self-locking chuck or tool holder is releasably secured in a rotary spindle by a draw bar and collet type tool holder gripping means. The self-locking chuck is provided with a spring-biased, ball locking means that functions as a safety retainer means for holding the chuck or tool holder in the spindle in case of a breakage of the collet type tool holder gripping means. The spindle is provided with a tapered seat against which the balls of the ball locking means are normally urged by a spring biased plunger that is movable to a ball unlocking position by the draw bar.
REFERENCES:
patent: 2037307 (1936-04-01), Bowman
patent: 3558147 (1971-01-01), Johansson
patent: 4031810 (1977-06-01), Nattefort
Black Paul G.
Clark John S.
Forlow John K.
Johnson Charles R.
Mitchell William A.
Bower James H.
Ex-Cell-O Corporation
Hill Mitchell J.
Weidenfeld Gil
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