US1825904A - Automatic firearm - Google Patents

Automatic firearm Download PDF

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Publication number
US1825904A
US1825904A US416572A US41657229A US1825904A US 1825904 A US1825904 A US 1825904A US 416572 A US416572 A US 416572A US 41657229 A US41657229 A US 41657229A US 1825904 A US1825904 A US 1825904A
Authority
US
United States
Prior art keywords
spring
breech
flap
plate
nose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US416572A
Other languages
English (en)
Inventor
Heinemann Karl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinische Metallwaaren and Maschinenfabrik AG
Original Assignee
Rheinische Metallwaaren and Maschinenfabrik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheinische Metallwaaren and Maschinenfabrik AG filed Critical Rheinische Metallwaaren and Maschinenfabrik AG
Application granted granted Critical
Publication of US1825904A publication Critical patent/US1825904A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A11/00—Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/50—Toggle-joint locks, e.g. crank-operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/82—Coil spring buffers

Definitions

  • This invention relates to an automatic tirearm.
  • the removal of the breech is rendered diiii- 5 cult by the pressure exerted on it by the previously compressed closing spring.
  • the pressure of said spring interferes with the removal of the breech parts and, after the breech is released, the eXpansion of the spring is liable to injure the gun parts or endanger their protection.
  • the invention obviates this by the provision of a movable latch which, in its inner position, forms an abutment for the end of the 5 spring pressing on the breech, preventing its outward pressure and relieving the breech from the same, so that the latter can be removed easily and without danger.
  • a movable latch which, in its inner position, forms an abutment for the end of the 5 spring pressing on the breech, preventing its outward pressure and relieving the breech from the same, so that the latter can be removed easily and without danger.
  • latches when appliedto existing o iirearms, are so connected by suitable means with parts which open when the breech is opened that they are automatically thrown into latching posit-ion when the gun is opened.
  • Figure l is a side elevation of the rear part of the casing
  • Fig. 2 is a plan with the breech closed
  • Fig. 3 is a plan with the toggle open during the opening of the breech.
  • the compression spring c acts through plate c in the direction to close the toggle and close the breech, not shown.
  • the casing a is open on the toggle-link side and is closed at the rear by a iap (l, pivoted at d.
  • a flat spring e, fastened to the casing, extends with its rear nose-shaped end e over the upper edge of the flap l when closed, and is raised and put under tension by said flap.
  • a nose e2 on the lower side of the spring e and projecting towards the casing, enters, when the flap d is opened, a recess a in the upper spring housing wall and comes into the path of movement of the spring plate c, but, after the spring e is raised by the closing of the flap, the nose e2 is withdrawn from recess a.
  • the flap CZ When the breech is to be removed, the flap CZ is first swung open, whereupon the rear end of the spring e is lowered and its nose e2 automatically comes into the path of the plate c. Then the closing spring is placed under partial compression by a partial opening of the toggle-links, until the plate c has slid past the nose e2 and is retained by the same. Now the closing spring is locked and no longer presses on pin ZJ, which can, therefore, easily be taken out, whereupon the toggle and the breech can be removed from the gun without any danger. After the breech and pin b are replaced, the closing of flap l retracts the nose e2 of flat spring e and releases plate c', so that the closing spring c is again operative upon the breech.
  • the spring latch can also be so controlled that the described partial opening otl the breech to lock the closing spring is unnecessary.
  • the latch nose may be formed directly on a forwardly projecting arm of the flap d, in which case it passes behind the spring plate c when the flap is opened and holds it off the link part b2 while holding the spring e compressed.
  • a compression spring tending to close the breech, a plate at one end of said spring through which the latter acts, a spring latch for said plate to hold said spring compressed, a pivoted flap for the rear end of the casing, and a nose on the end of said latch in position to be engaged by said ap when the latter is in closed position and thereby unlatch said plate and spring.
  • a compression spring tending to close the breech, a plate at one end of said spring through which the latter acts, a spring latch for said plate to hold said spring compressed, a pivoted flap Jfor the rear end of the casing, and means on the end of said latch in position to be engaged by said flap when the latter is in closed position and thereby unlatch said plate and spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Dry Shavers And Clippers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US416572A 1929-04-29 1929-12-26 Automatic firearm Expired - Lifetime US1825904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE143056X 1929-04-29

Publications (1)

Publication Number Publication Date
US1825904A true US1825904A (en) 1931-10-06

Family

ID=5669520

Family Applications (1)

Application Number Title Priority Date Filing Date
US416572A Expired - Lifetime US1825904A (en) 1929-04-29 1929-12-26 Automatic firearm

Country Status (6)

Country Link
US (1) US1825904A (enrdf_load_stackoverflow)
BE (1) BE365288A (enrdf_load_stackoverflow)
CH (1) CH143056A (enrdf_load_stackoverflow)
ES (1) ES115543A1 (enrdf_load_stackoverflow)
FR (1) FR684826A (enrdf_load_stackoverflow)
GB (1) GB346384A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR684826A (fr) 1930-07-01
BE365288A (enrdf_load_stackoverflow)
GB346384A (en) 1931-04-10
CH143056A (de) 1930-10-31
ES115543A1 (es) 1930-02-01

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