Pin-back button machine

Details Pin-back button machine Pin-back button machine

1981-01-21

1982-08-31

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

Overedge assembling means

B23P 1100

Patent

active

043465072

ABSTRACT:
A die assembly for making a pin-back button is taught. The die assembly comprises a base die part, a crimping die part, a ring die part and a top die part. Each die part is mountable on the next in the order given to form the die assembly. Cooperating means are provided on the base die part and crimping die part and on the ring die part and top die part to determine the depth to which the base die part enters the crimping die part and the top die part enters the ring die part. Each die part is rotatable with respect to that die part on which it is mounted to bring selected ones of the cooperating means into and out of registry to enable each die part to perform its functions in proper sequence to assemble a pin-back button.

REFERENCES:
patent: 4299019 (1981-11-01), Roebuck
patent: 4795036 (1974-03-01), Roebuck

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