Title: Hydraulic punch press with ram orienting mechanism

Abstract: The punch is surrounded by a tubular housing carrying a stripper plate and having a hinged door which is latched closed unless the punch is retracted to a tool change position. In addition, means sense the position of the door and prevent automatic cycling of the punch if the door is not closed. To adjust the stripper plate vertically, provision is made of compactly nested threaded rings and, to orient the punch angularly, provision is made of an adjusting mechanism which acts on a rod projecting from the upper end of a hydraulic cylinder and connected to a downwardly projecting ram for reciprocating the punch.

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Inventors: Scott, William B. (Steward, IL, US)
Sawvell, Roger V. (New Milford, IL, US)

Application Number: 442090
Filing Date: 1974-02-13
Publication_date: 1976-02-24
Assignee: W. A. Whitney Corporation (Rockford, IL)
Primary Class(es): 83/639.1 83/640, 83/699.31
Other Classes:
US Patent Ref:

539573	May, 1895	Cartwright	83/639.
2612951	Oct, 1952	Palmleaf	83/639.
3064514	Nov, 1962	Wilson	83/639.

Other Refs:
Primary Examiner: Yost, Frank T.
Assistant Examiner:
Attorney: Wolfe, Hubbard, Leydig, Voit & Osann, Ltd.