US PATENT SUBCLASS 470 / 144
.~.~ And wedge closing dies

Current as of: June, 1999
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470 /   HD   THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS

110  DF  APPARATUS FOR MAKING HEADED FASTENER, E.G., NAIL, RIVET, ETC. {13}
141  DF  .~ Having reciprocating die and heading means {3}
144.~.~ And wedge closing dies {1}
145  DF  .~.~.~> Bolt blank making

DEFINITION

Classification: 470/144

And wedge closing dies:

(under subclass 141) Subject matter wherein the gripping-dies are opened and closed by the use of either a wedge structure or a diagonal cam slot both which are capable of engaging the dies and moving them to open and closed positions.