US2202201A - Automatic gun - Google Patents

Automatic gun Download PDF

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Publication number
US2202201A
US2202201A US181433A US18143337A US2202201A US 2202201 A US2202201 A US 2202201A US 181433 A US181433 A US 181433A US 18143337 A US18143337 A US 18143337A US 2202201 A US2202201 A US 2202201A
Authority
US
United States
Prior art keywords
barrel
bolt
latch
breech bolt
breech
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
US181433A
Other languages
English (en)
Inventor
Henning Hermann
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.)
Rheinmetall AG
Original Assignee
Rheinmetall Borsig 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 Rheinmetall Borsig AG filed Critical Rheinmetall Borsig AG
Application granted granted Critical
Publication of US2202201A publication Critical patent/US2202201A/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
    • F41A3/12—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
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes

Definitions

  • the invention relates to an automatic gun having a sliding barrel and a locked breech, having a'locking member associated with a retaining device which holds the locking member firmly in a position in which it does not hinder the movements of the breech bolt, after the breech has been released from the barrel.
  • the retaining device is controlled by the relative movement between these parts.
  • movable members are provided on the breech bolt or on the locking member which lengthen the mutual abutment surfaces of the bolt and the locking member, according to the present invention.
  • the looking member in its swinging out movement from the position in which it locks the bolt and barrel together, is in this manner constrained from performing an additional movement, after unlocking has been effected, which allows the slide enough time to he thrust over the locking member and thereby to hold the barrel firmly in its rear end position, this being necessary for the correct return of the breech bolt into the barrel.
  • Fig. 2 shows in a fragmentary longitudinal section a gun in which the mechanism has attained a position wherein loading is prevented, and in which the breech bolt cannot run out properly into the forward end position of the barrel
  • Figs. 3 and 4 showone typical embodiment of the invention having a device which prevents this faulty position at the moment of unlocking and the beginning of the locking of the bolt
  • Figs. 5 and 6 show a modification of construction according to the invention with the gun in the same positions.
  • a barrel b mounted to slide axially in the housing a, while a breach bolt 0 is carried coaxially at the rear end of the barrel b and containing the firing pin ca adapted for a short back and forth movement therein.
  • Beneath the breech bolt 0 is located in the barrel b a stop slide e, actuated by a spring er and having a limited motion governed by a pin b2 fixed in the barrel.
  • a magazine as for the cartridges as, stacked upon a shelf a, which is pushed upwards by a spring as, so as to feed a cartridge at a time into the space formed between the barrel end and the forward end of the breech bolt 0, when the latter has recoiled after firing the gun.
  • the barrel b has a lug b3 hanging down into a chamber formed at the bottom of the housing a, between .which lug b3 and the .rear wall of the housing a is inserted a spring in urging the barrel b forward.
  • a rocking latch' 11 carried on the same lug bzis mounted to oscillate on a pin d1 and the rocking lever d at its frame end carries the hammer or striker (is.
  • a breech bolt actuating spring a compressed between the rear wall of the chamber and the rear end of a spring retainer as which has a lug G9 permanently engaging a recess in the breech bolt 0 to lock them together, so that the recoil of the bolt 0 always compresses the spring 02.
  • a spring actuated trigger a7 engaging in a notch of the barrel b to retain it in its rearmost position.
  • the'front end surface dz of the latch d enters behind the surface on of the breech bolt 0.
  • the breech bolt c will now be pushed .still further back against the action of the bolt actuating spring or and locked by the rear aw in position of rest with the trigger released, while the barrel b with the barrel returning spring in compressed, is held back by means of the slide e set free from the breech bolt 0,- and is pushed over the forward end of the breech latch d actuated by the spring e1.
  • the compressed spring ca sends the breech bolt c forward, which brings a round of ammunition from the magazine ax to the barrel. Shortly before meeting the barrel it hits the projection ez'of the slide e and pushes it forward, so that the forward end of the breech latch d, on account of the cooperation of the surfaces d2, d4, swings upwardsthe combined action of the springs in and or,
  • the hammer d5 being hit by the inclined surface a: of the housing a. swings forward on its pivot pin carried by the latch d and strikes the rear end ca of the firing pin, thereby firing the gun.
  • the projection or on the bolt thrusts the shoulder e: of the slide, located in the path of the projection 01, against the influence of the spring biasing the slide, out of the position of engagement of the slide over the projection do of the latch.
  • the breech bolt '0 then moves forward into its front end position in the barrel and is now moved together with the latter into the firing position, the latch d with its inclined shoulder d4 being swung up by the housing guide a: into the position in which it bears behind the tongue ,f.
  • a spring-urged slide I2 is mounted in the head (is of the latch d.
  • Fig. 5 shows the position. at the moment of unlocking the bolt and barrel and the additional movement f1 rendered possible by the springurged slide ,fz,'and Fig. 6 the moment shortly before the beginning of the locking of the bolt and barrel.
  • An automatic gun having a sliding barrel arid a breech bolt longitudinally movable therein, comprising a latch between the barrel and the breech bolt, a slide provided with a spring to hold the'latch in position releasing the breech bolt and which is releasableagainst the action of said spring by the forward movement of the breech relatively to the barrel, and a resilient member associated with the breech bolt and the latch extending the period of contact between the breech bolt and the latch in order to secure the latch in position out of the path of the breech bolt movement.
  • the resilient member is in the form of a tongue mounted on the breech bolt to increase the length of contact with the breech bolt, said tongue being movable toward the latch by a spring;
  • the resilient member is in the form of a spring-urged member mounted in the front end of the latch to increase the period of contact of the latch and being movable by its spring in the direction toward the breech bolt.
  • An automatic gun having a sliding barrel and a breech bolt longitudinally movable therein, comprising a latch between the barrel and the breech bolt, means to hold the latch in position releasing the breech bolt and which.is releasable by the forward movement of the breech relamovement.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US181433A 1929-05-01 1937-12-23 Automatic gun Expired - Lifetime US2202201A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE145479X 1929-05-01
DE489752X 1937-01-05

Publications (1)

Publication Number Publication Date
US2202201A true US2202201A (en) 1940-05-28

Family

ID=25752128

Family Applications (1)

Application Number Title Priority Date Filing Date
US181433A Expired - Lifetime US2202201A (en) 1929-05-01 1937-12-23 Automatic gun

Country Status (3)

Country Link
US (1) US2202201A (ko)
GB (1) GB489752A (ko)
NL (1) NL27886C (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536997A (en) * 1945-12-06 1951-01-02 Oerlikon Buehrle Ag Pivoted lock mechanism for breech bolts of automatic firearms

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL72471C (ko) * 1945-04-21
BE896682A (fr) * 1982-05-08 1991-12-11 Heckler & Koch Gmbh Arme legere munie d'un chien et d'un percuteur.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536997A (en) * 1945-12-06 1951-01-02 Oerlikon Buehrle Ag Pivoted lock mechanism for breech bolts of automatic firearms

Also Published As

Publication number Publication date
GB489752A (en) 1938-08-03
NL27886C (ko)

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