Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1983-07-11
1985-04-02
Schmidt, Frederick R.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29265, B23P 1904
Patent
active
045078378
ABSTRACT:
An extractor tool for removing a die button from an opening in a die block into which the button has been securedly pressed. The die button has an axial opening therethrough. The tool includes a hollow expandible extractor insertable into and through the opening in the button and having spaced legs at the engaging end thereof. The spaced legs of the extractor are forced outwardly into firm engagement with the die button upon movement into the hollow extractor of an expansion pin. Both the expandible extractor and the expansion pin are threaded to an extractor sleeve which is received through a central opening in a spacer. The spacer is of substantially hollow cup shape and is adapted to engage the top of the die block surrounding the die button and receive the die button upon its extraction from the die. A nut is threaded on the circumference of the expansion sleeve and engages the top of the spacer and upon tightening of the nut, the expansion sleeve moves away from the die block and pulls the extractor and the expansion pin therewith to thereby pull the die button from the die block.
REFERENCES:
patent: 736991 (1903-08-01), Matthews
patent: 1429567 (1922-09-01), Carlisle
patent: 1632720 (1927-06-01), Worster
patent: 1670574 (1928-05-01), Howell
patent: 1763331 (1930-06-01), Stephenson
patent: 2380068 (1945-07-01), Patton
patent: 2614318 (1952-10-01), McCord
patent: 3479722 (1969-11-01), Maness
patent: 3588983 (1971-06-01), Hoy
patent: 3611540 (1971-10-01), Gibu
Dana Corporation
Schad Steven P.
Schmidt Frederick R.
Shall Harold D.
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