US2613577A - Automatic sear for automatic firearms - Google Patents

Automatic sear for automatic firearms Download PDF

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Publication number
US2613577A
US2613577A US117155A US11715549A US2613577A US 2613577 A US2613577 A US 2613577A US 117155 A US117155 A US 117155A US 11715549 A US11715549 A US 11715549A US 2613577 A US2613577 A US 2613577A
Authority
US
United States
Prior art keywords
striker
bolt
breech
automatic
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
US117155A
Other languages
English (en)
Inventor
Kiraly Paul De
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.)
HISPANIOLA Corp
Original Assignee
HISPANIOLA CORP
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 HISPANIOLA CORP filed Critical HISPANIOLA CORP
Application granted granted Critical
Publication of US2613577A publication Critical patent/US2613577A/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
    • 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
    • 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 drawing shows by way of example, one form of execution of the object of the invention.
  • the ligure is an axial sectional view of the breechmechanism.
  • I designates the barrel which is rigidly secured to a barrel extension 2 and which can perform a slight recoil movement about 0.15 inch in the frame 3.
  • 4 designates the breechbolt slidably arranged in the barrel extension 2
  • 5 designates the striker which is slidably mounted within the breech-bolt.
  • the breechbolt II is a hollow cylinder in which slides the front part of the striker which is likewise cylindrical.
  • ⁇ IS designates the recoil spring the front end of which bears directly on the breech-bolt.
  • 'I is the firing spring the front end of which bears on thefront wall of a boring provided in the striker.
  • the rear portion of the breech-bolt 4 is guided during the second phase of the recoil in the longitudinal inner straight wall of a rear casing ID3 fastened to the frame 3, substantially in the prolongation of the straight guiding wall of the barrel extension 2.
  • the breech-bolt 4, as well as the barrel I and barrel extension 2 are adapted to be locked before firing, by a crank-lever like locking member Ill-I3 pivoted at II to the frame and linked by a bolt I2 to the barrel extension 2.
  • the hookshaped end I3 of this locking member engages a corresponding lower shoulder I4 of the breech bolt.
  • a toothed sear I8 is pivoted about the pin II 1 Claim. (Cl. 89-149) and carries a rearmost .tooth I'I, a second tooth I6 ⁇ and an upper protrusion I5.
  • the ⁇ spring 2H tends to lift thesear I8 linto engagement eitherA inner rib IUI adapted to tilt the' catch 411-42 as will be hereinafter explained.
  • the striker 5 is provided atits rear end with a retaining shoulder 30 1having' ,al-vertical Wall 2
  • the barrel extension 2 has a camshaped rear edge 28 on the path of which is located the protrusion I5.
  • the sear I8 is adapted to catch, in ,their near rearmost positions, in single fire the breech-bolt and the Striker, in automatic nre, the striker alone. It is this latter case in which the new disposition of weight and movement of firing of the striker proves useful.
  • the catch 40,' 42 reestablishes the connection between striker 5 and breech-bolt 4 shortly beis hereby not affected, not influenced.
  • the weight of the striker 5 is here of about 1.3 times greater than the weight of the breech-bolt ,1, 4,.but in other alms, it could be up to twice as great masses between the vstriker andthe breech-bolt,
  • the striker can be made of, ⁇ an especially heavy In order to increase the ratio offthe metallic Aalloy and/ or the breech-bolt cany be made 'of'avlight alloy.
  • Whatlclaims 1 ⁇ In a light automaticire arm comprising a frame; a .breech-bolt and striker mechanism, 1the recolof *whichfis controlled bythe pressure of.
  • vsaid barrel extension comprisins ⁇ a lonsitudinn straight l guiding wall'and a cam-,shaped rear edge; a rear casing .fastened tothe frame and having a longitudinal inner straight wall substantially in the prolongation of said guiding, wall of the barrel extension; an elongated recessed straight breechboltv slidably located within said vbarrelfextension; a striker in the kform of an elongated straight body carrying a firing pin, vthe fore part of said striker being adapted to slide in said recessed breech-bolt and the rear part adapted to slide along said inner straight wall of the rear casing, said strikerl being provided vwitkna retaining shoulder; lmeansffor connecting *said breech-bolt 'and v,

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Piles And Underground Anchors (AREA)
US117155A 1948-09-30 1949-09-22 Automatic sear for automatic firearms Expired - Lifetime US2613577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH685765X 1948-09-30

Publications (1)

Publication Number Publication Date
US2613577A true US2613577A (en) 1952-10-14

Family

ID=4528842

Family Applications (1)

Application Number Title Priority Date Filing Date
US117155A Expired - Lifetime US2613577A (en) 1948-09-30 1949-09-22 Automatic sear for automatic firearms

Country Status (5)

Country Link
US (1) US2613577A (enrdf_load_stackoverflow)
BE (1) BE491224A (enrdf_load_stackoverflow)
CH (1) CH278024A (enrdf_load_stackoverflow)
FR (1) FR996328A (enrdf_load_stackoverflow)
GB (1) GB685765A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9927200B2 (en) * 2015-05-25 2018-03-27 Grand Power, S.R.O. Trigger mechanics for auto-loading firearm without trigger motion bar with direct control of firing pin catch through one-arm trigger lever
US20190107353A1 (en) * 2017-10-10 2019-04-11 Sig Sauer, Inc. Handgun sear with multiple engagement surfaces

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134494B (en) * 1983-01-31 1987-08-19 Elevator Free Bloc Company Lim Feeding particulate material from a container
US5373775A (en) * 1992-04-16 1994-12-20 Remington Arms Company, Inc. Firearm having disconnector and dual sears

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1021381A (en) * 1911-05-26 1912-03-26 Svenska Vapen Och Ammunitionsfabriken Ab Firearm.
US1323025A (en) * 1919-11-25 Regis darne abtd pierre darwe
GB314320A (en) * 1928-03-23 1929-06-24 Aimo Johannes Lahti Improvements in or relating to automatic fire arms
US2021305A (en) * 1934-05-03 1935-11-19 Herman H Harr Method of and apparatus for dispensing beverages
US2052287A (en) * 1933-02-10 1936-08-25 Sig Schweiz Industrieges Automatic firearm

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1323025A (en) * 1919-11-25 Regis darne abtd pierre darwe
US1021381A (en) * 1911-05-26 1912-03-26 Svenska Vapen Och Ammunitionsfabriken Ab Firearm.
GB314320A (en) * 1928-03-23 1929-06-24 Aimo Johannes Lahti Improvements in or relating to automatic fire arms
US2052287A (en) * 1933-02-10 1936-08-25 Sig Schweiz Industrieges Automatic firearm
US2021305A (en) * 1934-05-03 1935-11-19 Herman H Harr Method of and apparatus for dispensing beverages

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9927200B2 (en) * 2015-05-25 2018-03-27 Grand Power, S.R.O. Trigger mechanics for auto-loading firearm without trigger motion bar with direct control of firing pin catch through one-arm trigger lever
US20190107353A1 (en) * 2017-10-10 2019-04-11 Sig Sauer, Inc. Handgun sear with multiple engagement surfaces
US10684087B2 (en) * 2017-10-10 2020-06-16 Sig Sauer, Inc. Handgun sear with multiple engagement surfaces

Also Published As

Publication number Publication date
BE491224A (enrdf_load_stackoverflow)
CH278024A (de) 1951-09-30
FR996328A (fr) 1951-12-18
GB685765A (en) 1953-01-14

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