Device for securing dies on threading machines

Details Device for securing dies on threading machines Device for securing dies on threading machines

1992-03-24

1993-04-20

Larson, Lowell A.

Threaded, headed fastener, or washer making: process and apparat

Apparatus for making externally threaded fastener or...

Screw fastener making

470207, 470 83, 279138, B21H 302

Patent

active

052038742

ABSTRACT:
The device uses a diaphragm cover between the adapter and the die to lock the die into the adapter. The cover is rotatably mounted onto the adapter and has a polygonal bore that matches the polygonal bore of the adapter. The mandrel of the die has a throat in which the cover sits when the cover is in the locked position. The cover is biased with a spring into the locked position. Stops are provided to limit the movement of the cover between the open and closed positions.

REFERENCES:
patent: 1050802 (1913-01-01), Bryant et al.
patent: 2087084 (1937-07-01), Cote
patent: 2762629 (1956-09-01), Dalby
patent: 3579688 (1971-05-01), Keltz et al.
patent: 4025210 (1977-05-01), Johnson

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