RISING BLOCK RIFLE AND FEED MECHANISM THEREFOR

• US 3,667,147 A
• Filed: 01/22/1970
• Issued: 06/06/1972
• Est. Priority Date: 01/22/1970
• Status: Expired due to Term

• Current Assignee: Leonard W. Price, Morris Goldin
• Original Assignee: Leonard W. Price, Morris Goldin
• Inventors: Goldin, Morris, Price, Leonard W.
• Primary Examiner(s): Borchelt, Benjamin A.
• Assistant Examiner(s): Jordan, C. T.
• Application Number:
  US05/005,002
• Time in Patent Office: 866 Days
• Field of Search: 42/15,27,39.5 89/17,24,33MC,33A
• US Class Current: 42/15
• CPC Class Codes: F41A 15/00 Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun F41A9/54, F41C9/08 take precedence; Means for removing duds or misfires in rocket throwers F41F3/058
• CPC Class Codes: F41A 15/08 for block-action guns
• CPC Class Codes: F41A 15/20 specially adapted for caseless-ammunition duds
• CPC Class Codes: F41A 9/45 the cartridge chamber or the barrel as a whole being tiltable or transversely slidable between a loading and a firing position F41A9/25 and F41A9/27 take precedence

Abstract

A rifle for use in either full automatic or semiautomatic mode in which a cam system is reciprocated in a direction parallel to the rifle axis either manually or by a gas driven system. The cam system cocks the firing hammer and vertically reciprocates a rifle breech block containing the firing chamber. In the uppermost position, the firing chamber is aligned with a firing pin, which detonates the primer charge in a cartridge, actuated by the hammer when a sear is released by the rifle trigger. When the breech block is in a lowered position the firing chamber is aligned with apertures in a magazine through which a rammer is driven by the cam system for movement of cartridges into the chamber. A spring-biased gate closes the rear end of the firing chamber when the block is in the lowered position, but opens to allow ejection of a round which has not been fired when the next cartridge is driven into or an ejector tube is driven through, the chamber.

Claims

1. A rifle comprising a barrel having a bore extending therethrough, a firing pin coaxially aligned with said bore, a breech block having a firing chamber therein, means mounted on said rifle, and movable relative thereto, including cam means for moving said breech block between a first position for injection of cartridges into said firing chamber and a second position for firing of cartridges in said firing chamber, receiver means mounted thereon for holding a cartridge magazine on said rifle, and means mounted on said movable means for injecting a cartridge from a magazine in said receiver means into said firing chamber when said breech block is in said first position.

2. The rifle of claim 1 including means for properly axially positioning an injected cartridge in said firing chamber if said injecting means improperly axially positions a cartridge therein.

3. A rifle comprising a barrel having a bore extending therethrough, a firing pin coaxially aligned with said bore, a breech block having a firing chamber therein, means mounted on said rifle, and movable relative thereto, including cam means for moving said breech block between a first position for injection of cartridges into said firing chamber and a second position for firing of cartridges in said firing chamber, and means mounted on said movable means for ejecting a cartridge from said firing chamber, when said breech block is in said first position, by exerting an axially directed pushing force through said firing chamber.

4. A rifle comprising a barrel having a bore extending therethrough, a firing pin coaxially aligned with said bore, a breech block having a firing chamber therein, means mounted on said rifle, and movable relative thereto, including cam means for moving said breech block between a first position for injection of cartridges into said firing chamber and a second position for firing of cartridges in said firing chamber, receiver means mounted thereon for holding a cartridge magazine on said rifle, and means mounted on said movable means for passage through said receiver means comprising first means for injecting a cartridge from a magazine into said firing chamber when said breech block is in said first position and second means for clearing said firing chamber when said breech block is in said first position.

5. The rifle of claim 4 wherein said second means includes obstruction means for preventing passage of said second means through said receiver means when a cartridge magazine is mounted in said receiver means.

6. The rifle of claim 4 wherein said second means includes means mounted coaXially with said first means and in abutment therewith and biasing means acting between said first and second means to tend to maintain them in abutment.

7. A rifle comprising a barrel having a bore extending therethrough, a firing pin coaxially aligned with said bore, a breach block having a firing chamber therein, means mounted on said rifle, and movable relative thereto, including cam means for moving said breech block between a first position for injection of cartridges into said firing chamber and a second position for firing of cartridges in said firing chamber, and gate means on said rifle for substantially closing one end of said firing chamber when said breech block is in said first position.

8. The rifle of claim 7 including biasing means acting upon said gate means to maintain it in said firing chamber closing position, and means mounted on said movable means for clearing said firing chamber, when said breech block is in said second position, and for moving any matter therein past said gate means against the force of said biasing means.

9. A rifle comprising a barrel having a bore extending therethrough a breech block mounted for movement in a direction perpendicular to the axis of said bore adjacent the rear end of said barrel, including a firing chamber therein having an axis which is parallel to the axis of said bore, and a cam follower thereon, a firing pin adjacent said breech block on the opposite side thereof from said barrel, a movable cam plate mounted on said rifle having cam means thereon cooperating with said cam follower to produce movement of said breech block between a first position in which said firing chamber may receive cartridges and be cleared and a second position in which said firing chamber is coaxially aligned with said bore and said firing pin, a pathway extending radially from the axes of said bore and said firing pin for guiding the movement of said breach block, a magazine receiver adjacent said pathway including a guidepath therethrough having an axis which is parallel to the axis of said bore, and cartridge moving means fixed to said cam plate for movement therewith through said guide path.

10. The rifle of claim 9 wherein said cartridge moving means comprises means for injecting a cartridge into said firing chamber and ejecting any other matter therefrom when said breech block is in said first position and a magazine is in said receiver, and means for ejecting all matter from said firing chamber when said breech block is in said first position and a magazine is not in said receiver.

11. The rifle of claim 10 including a magazine in said receiver means including a first aperture in a side thereof adjacent said pathway, said first aperture having a first diameter which is great enough to permit passage of a cartridge therethrough and a second aperture in the opposite side of said magazine, said second aperture having a second diameter which is smaller than said first diameter to prevent passage of said ejecting means therethrough while permitting passage of said injecting means therethrough, said first and second apertures being coaxial with one another and with a cartridge in said magazine.