Title: Work holder mechanism for automatic machine tool

Abstract: A work holder including a pusher or feed tube for an automatic machine tool, such as an automatic screw machine, with the work holder including a stock aligning and/or supporting bushing or collar member having a stock receiving opening therethrough with wedge block means coacting with the collar for selectively locking the collar in predetermined rotational position at the stock entry end of the feed tube. The locking arrangement provides for effective and rapid locking and unlocking of the collar to the feed tube, and permits ready changing or replacement of the collar member, thereby providing for rapid interchange for different sizes and/or cross sectional configurations of stock material to be fed into the feed tube.

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Inventors: Zajac, Chester S. (Parma, OH, US)
Cockram, Frederick T. (Lyndhurst, OH, US)
Thompson, Scott B. (Westlake, OH, US)

Application Number: 687358
Filing Date: 1976-05-17
Publication_date: 1978-12-19
Assignee: Zamco Manufacturing Co. (Valley View, OH)
Primary Class(es): 279/145 226/158, 285/421, 403/358
Other Classes:
US Patent Ref:

783762	Feb, 1905	Stahl	403/358.
1885224	Nov, 1932	Brinkman et al.	226/149.
2676063	Apr, 1954	Whitt	403/358.
3148902	Sep, 1964	Gardner	285/421.
3853413	Oct, 1974	Parran	403/326.
3910476	Oct, 1975	Zajac	226/158.

Other Refs:
Primary Examiner: Simpson, Othell M.
Assistant Examiner: Wer, C. U.
Attorney: Baldwin, Egan, Walling & Fetzer