Revolver crane barrel extender and alignment tool

Firearms – With adjustable head space – By reaming

Patent

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Details

42 59, 42 90, F41C 2700

Patent

active

043442455

ABSTRACT:
A tool for extending the barrel of a revolver crane and for checking the alignment of the crane barrel and cylinder locking aperture in a revolver frame. The crane barrel is inserted over an alignment stud and an adjustable stylus is threaded into contact with the crane barrel near its end. Rotation of the crane barrel causes a groove to be worn on the outer surface of the crane barrel and thus cause the barrel to elongate to its desired length. Additionally, the alignment stud may be used to align the crane barrel to the revolver cylinder locking aperture.

REFERENCES:
patent: 517172 (1894-03-01), Wesson
patent: 1256556 (1918-02-01), Hedges

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