Ordnance – Automatic – Combined movable barrel and gas operated
Patent
1975-02-20
1976-10-12
Brown, David H.
Ordnance
Automatic
Combined movable barrel and gas operated
89179, F41D 1504
Patent
active
039850625
ABSTRACT:
A firearm, particularly a short firearm for firing caseless ammunition, comprises a housing having a sleeve fixed therein with first and second spring members which are biased against a projection on the gun barrel in order to hold it against axial displacement in each direction. The barrel includes a breech portion with a magazine chamber, and cartridges are moved out of the magazine chamber into a cartridge chamber by a gas piston which is displaceable in a lock member which, together with the gas piston, seals the space in the cartridge chamber behind the cartridge during firing. The lock member includes projections which are engaged behind recesses of the rear breech portion of the barrel. The firing pin gas piston is moved rearwardly during firing, and it has a pin connection to a lock slider so that it and the lock member are rotated to move the projection on the lock member out of alignment with the projections of the breech portion of the barrel so that the lock member and the firing pin may be tracked against the force of a return spring. In a subsequent forward movement of the firing pin and the lock member, the next cartridge in the magazine is positioned in the cartridge chamber with the projectile portion located in the barrel for firing.
REFERENCES:
patent: 1132044 (1915-03-01), Stamm
patent: 2537443 (1951-01-01), Cerrella
patent: 2941449 (1960-06-01), Reed
patent: 3641692 (1972-02-01), Wells
patent: 3713363 (1973-01-01), Hurlemann
patent: 3855900 (1974-12-01), Barr et al.
Hupp Gerhard
Mader Helmut
Brown David H.
Industriewerke Karlsruhe-Augsburg Aktiengesellschaft
LandOfFree
Firearm construction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Firearm construction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Firearm construction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-935239