US2016646A - Automatic firearm - Google Patents

Automatic firearm Download PDF

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Publication number
US2016646A
US2016646A US643624A US64362432A US2016646A US 2016646 A US2016646 A US 2016646A US 643624 A US643624 A US 643624A US 64362432 A US64362432 A US 64362432A US 2016646 A US2016646 A US 2016646A
Authority
US
United States
Prior art keywords
tooth
breech
lever
block
barrel
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
US643624A
Other languages
English (en)
Inventor
Mancini Niccolo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2016646A publication Critical patent/US2016646A/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
    • 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
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/64—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers
    • F41A17/66—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers automatically operated, i.e. operated by breech opening or closing movement
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/31—Sear arrangements therefor

Definitions

  • the present invention has for its object a firing or safety mechanism, especiallyv intended for machine guns with a recoil barrel and double-armed block lever, of safe and simple constructionand functioning.
  • one of the main characteristics of the invention residesin the special structure of the trigger which, in combination with the peculiar conformation of the fire-pin, is designed to prevent the casual discharge of the arm when unguarded.
  • Another characteristic feature of said trigger consists in holding the breech block open o'n the cessation of firing and thus preventing the cartridge from remaining within the barrel, with a view of hindering its ignition'on the barrel be-l 'y coming heated to excess.
  • Figs. 6, 7, 8 represent various cross sections of.
  • the movable breech 2 also carries the trigger 9 with Its spring 9' and with the lrest of its movable parts which willy/be particularly described in the. sequel, while to the frame or support is ixed the inclined plane 8 and the actuating knob 9".
  • the latter also serves to holdthe breech block open on ilrlng being suspended, thus ensuring,r
  • the breech block must preferably remain open during the cessation of ring or between two rounds of shots, so that no cartridge remain in the barrel when the'barrel is hot. This will avoid involuntary lfiring.
  • In its course passing vbeyond the tooth 20 (see Fig. 9), the tooth 2
  • Fig. 9 shows the detent in perspective and in Figs. 6-7 the detent is shown in front view within the nre-arm, and in side elevation, partly in secfchannels I6 leading to those tion, in Figs. l, 2 and 3.
  • This detent may be moved up and down by means of the stud I" (see Figs. 1-3) which is connected with it through a bell .crank and a'centrally plvoted lever (Figs. 1-3).
  • the stud 9" isactuated by finger pressure.
  • the detent will be moved also in response tothe return movement of the obturator l.
  • the obturaf tor 3 slides with its projection 2
  • movable obturator a double armed lever at the 30 'end of said barrel for connecting the latter with said obturator, a tooth on the free end of said lever, means including an inclined surface for rocking said lever to disconnect the barrel from the obturator, a percussive device carrying a tooth which during the advance of the percussion device encounters the tooth on the free end of the, lever in its rocked position until the obturator reaches the endv of its movement,l and a sprlng opposing the roc'kingof said lever and returning it to normal when said obturator reaches the end of its movement.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Toys (AREA)
US643624A 1932-06-03 1932-11-21 Automatic firearm Expired - Lifetime US2016646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT415757X 1932-06-03

Publications (1)

Publication Number Publication Date
US2016646A true US2016646A (en) 1935-10-08

Family

ID=11251422

Family Applications (1)

Application Number Title Priority Date Filing Date
US643624A Expired - Lifetime US2016646A (en) 1932-06-03 1932-11-21 Automatic firearm

Country Status (5)

Country Link
US (1) US2016646A (fr)
CH (1) CH175058A (fr)
DE (1) DE626574C (fr)
FR (1) FR766053A (fr)
GB (1) GB415757A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427304A (en) * 1942-09-30 1947-09-09 Robbins Charles William Automatic sear release for firearms
US2549162A (en) * 1943-06-18 1951-04-17 Blacker Latham Valenti Stewart Recoil operated firearm
US2557134A (en) * 1940-10-23 1951-06-19 Oerlikon Buehrle Ag Breechblock return mechanism
US2715857A (en) * 1953-01-19 1955-08-23 Darsie Burns Bolt detent for a firearm
US20060266209A1 (en) * 2005-02-09 2006-11-30 Piotr Grabowski Reactive mechanism for firearms
US11022386B2 (en) 2019-08-15 2021-06-01 Smith & Wesson Inc. Firearm breech cover interlock
US11035636B2 (en) 2019-07-26 2021-06-15 Smith & Wesson Inc. Shotgun ammunition feeding system
US11306995B2 (en) 2019-08-06 2022-04-19 Smith & Wesson Inc. Shotgun configuration
US11326845B2 (en) 2019-08-13 2022-05-10 Smith & Wesson Inc. Firearm having reciprocable breech cover

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2557134A (en) * 1940-10-23 1951-06-19 Oerlikon Buehrle Ag Breechblock return mechanism
US2427304A (en) * 1942-09-30 1947-09-09 Robbins Charles William Automatic sear release for firearms
US2549162A (en) * 1943-06-18 1951-04-17 Blacker Latham Valenti Stewart Recoil operated firearm
US2715857A (en) * 1953-01-19 1955-08-23 Darsie Burns Bolt detent for a firearm
US20060266209A1 (en) * 2005-02-09 2006-11-30 Piotr Grabowski Reactive mechanism for firearms
US11035636B2 (en) 2019-07-26 2021-06-15 Smith & Wesson Inc. Shotgun ammunition feeding system
US11306995B2 (en) 2019-08-06 2022-04-19 Smith & Wesson Inc. Shotgun configuration
US11326845B2 (en) 2019-08-13 2022-05-10 Smith & Wesson Inc. Firearm having reciprocable breech cover
US11022386B2 (en) 2019-08-15 2021-06-01 Smith & Wesson Inc. Firearm breech cover interlock

Also Published As

Publication number Publication date
GB415757A (en) 1934-09-03
FR766053A (fr) 1934-06-21
DE626574C (de) 1936-02-28
CH175058A (fr) 1935-02-15

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