Ordnance – Automatic – Receiver closures and/or breech block return means
Patent
1975-06-30
1976-08-31
Bentley, Stephen C.
Ordnance
Automatic
Receiver closures and/or breech block return means
F41D 1100
Patent
active
039772977
ABSTRACT:
A portable submachine gun having a support structure; firing and safety means attached to said structure; a retaining device for a magazine attached to said support structure; a stock attached to the rear end of the support structure and to said magazine retaining device; a barrel attached to said support structure and having a cartridge receiving chamber at one end; a bolt slidingly mounted on said barrel and having guide means removably attached to the rear end of said support structure; and sight means included in said sliding bolt and in said guide means; in which: said sliding bolt comprises a tubular piece partially longitudinally cut in its lower edge and closed at one of its end by a solid support member; a window is provided adjacent to the solid support member and to the longitudinal cut and integrally including a slot in the portion thereof registering with the solid support member; a stop is interiorly included in the open end of said tubular piece; said guide means comprises a rail included in the lower edge of said solid support member; a helical spring interiorly coupled in said tubular piece along same, which helical spring includes at one of its ends a bushing that registers with said stop of the open end of said tubular piece, said bushing having a diameter that occupies the clearance existing between the exterior diameter of said barrel and the interior diameter of said tubular piece; a guide removably attached to said support structure at its upper rear end portion; and coupling means for fixing said guide to said support structure; and said removable guide integrally includes runners having center openings.
REFERENCES:
patent: 2683948 (1954-07-01), Catron
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