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Publication of FR862944ApublicationCriticalpatent/FR862944A/fr
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
B23B31/02—Chucks
B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
B23B31/16004—Jaws movement actuated by one or more spiral grooves
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Mechanical Engineering
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Gripping On Spindles
(AREA)
FR862944D1939-01-311940-01-17Mandrin pour machines-outils et similaires, avec dispositif de serrage manoeuvrable pendant le fonctionnement
ExpiredFR862944A
(fr)