Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of IT580788ApublicationCriticalpatent/IT580788A/it
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
B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
B23B31/201—Characterized by features relating primarily to remote control of the gripping means
B23B31/204—Characterized by features relating primarily to remote control of the gripping means using fluid-pressure means to actuate the gripping means