Accession Number : ADD000938
Title : Obturated Firearm Breech Safety Device.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C
Personal Author(s) : Post,John S ; Reed,Frederick P
Report Date : 12 Jun 1973
Pagination or Media Count : 4
Abstract : The patent relates to a device whereby in a firearm comprising a reciprocating bolt, the pin for retaining the extractor against rotation in the nose thereof is adapted to be blown radially from the firearm through a cooperating passage responsive to excessive gas pressure in the barrel for release thereof. In an alternate embodiment the tubular body of the extractor is thinned down where coincident with the inner mouth of the passageway so as to be rupturable by excessive gas pressure for release thereof through the passageway.
Descriptors : *Rifles, *Safety equipment, *Patents, Breech mechanisms, Gun components, Obturation(Ballistics), Gun barrels
Subject Categories : Ballistics
Distribution Statement : APPROVED FOR PUBLIC RELEASE