Silencer shell forming apparatus

Details Silencer shell forming apparatus Silencer shell forming apparatus

1997-11-24

1999-08-31

Hail, III, Joseph J.

Metal deforming

By tool-couple pressing together adjacent surface portions...

To form longitudinally-seamed tube

72393, B21D 3902, E05B 1900

Patent

active

059438916

ABSTRACT:
In a silencer shell forming apparatus, a mandrel is divided into an upper segment and a lower segment as well as both the segments are permitted to move in a vertical direction to dispense with a setup job when a different type of a shell is formed. Further, a drive mechanism is provided to cause both the segments to move in a direction where they become nearer to each other and in a direction where they are separated from each other.

REFERENCES:
patent: 1777316 (1930-10-01), Kuffner
patent: 2226078 (1940-12-01), Spahn
patent: 3077916 (1963-02-01), Vaughn
patent: 3986383 (1976-10-01), Petteys
patent: 4207453 (1980-06-01), Astill
patent: 4513596 (1985-04-01), Usher
"Shell Lockseaming And Flanging Silencer Manufacturing Machines", Eagle Catalogue 920-80, 1984.

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