Method for threading closures

Details Method for threading closures Method for threading closures

1982-05-23

1984-07-31

Gilden, Leon

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72113, 72115, B21H 304

Patent

active

044622350

ABSTRACT:
A method for threading a closure having cylindrical walls which includes securing the closure in a stationary nest, inserting a threading tool having indentions on the outside thereof into the interior of the closure, moving the closure into a ring having projecting threads on the inside thereof around the outside walls of said closure, moving the threading tool into contact with the interior portion of the closure upon which threads are to be formed, and moving the threading tool around the interior portion of the stationary closure in an orbital path to form threads in the closure without rotating the threading tool about the threading tool axis.

REFERENCES:
patent: 2019493 (1935-11-01), Hothersall
patent: 2215845 (1940-09-01), Williams

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