Western Pacific Industries Inc.

Allen Manufacturing Company

Paul J Molinari

A method and apparatus is provided for stamping or printing identification indicia on a circular segment such as the flat portion of the head of a cap screw, bearing race, or stud end. The adjustable diameter stamp uses a plurality of segments which, when fitted together, form a cylinder or other polygonal shape which is held securely in a matching collet during the stamping operation. Variable diameter stamping is accomplished by using different sized stamping segments. Also, shims may be used to provide marking diameter adjustment. The preferred embodiment uses four wedge-shaped stamping segments.

Adjustable diameter stamp

A socket bit holder formed with a circumferential groove in a bit holder opening of the socket, the holder arranged to receive a tool bit having peripheral notch means, and a split ring in the circumferential groove arranged to engage the notch means of the tool bit whereby the bit will be maintained in the holder.

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Manchester, CT, United States of America

Paul J Molinari