US2437548A - Telescopic firearm - Google Patents

Telescopic firearm Download PDF

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Publication number
US2437548A
US2437548A US540928A US54092844A US2437548A US 2437548 A US2437548 A US 2437548A US 540928 A US540928 A US 540928A US 54092844 A US54092844 A US 54092844A US 2437548 A US2437548 A US 2437548A
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Prior art keywords
butt
firearm
tubular member
section
tubular
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Expired - Lifetime
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US540928A
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English (en)
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Patchett George William
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C27/00—Accessories; Details or attachments not otherwise provided for
    • F41C27/16—Smallarms combined with thrusting or cutting weapons; Bayonets; Bayonet mounts
    • F41C27/18—Bayonets; Bayonet mounts
    • 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
    • F41A11/04—Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/04—Folding or telescopic stocks or stock parts

Definitions

  • This invention relates to improvements in firearms and has for its object the manufacture of a weapon carrying a butt and bayonet and wherein its overall length when required can be greatly reduced.
  • the arrangement proposed becomes possible by having the butt and bayonet fold and by forming the supporting members of the gun mechanism 'as tubular entities, one of which can telescope within the other.
  • the gain in space achieved in such arrangement is of a high order, since in one form of the device suitable for modern warfare the extended length of the firearm and accessories is 33 inches long, whilst in its telescoped andfolded condition the overall length is under 13 inches.
  • a further object of the invention is to maintain locked rigidity and alignment when the firearm is in its operative or. extended condition, as well as to lock the interengaging partswhen in its folded condition.
  • a further object is to provide means for an immediate release at will of the firearm from its telescoped state and have same in a condition for use, a recoil spring being inter alia employed for such purpose.
  • the invention consists in a new or improved telescopic firearm having in combination "two main tubular intertelescopic members of differing diameters and of completely circular cross section arranged coaxially, said tubularmembers carrying or supporting the entire operative components 'of the firearm, said members being capable or intentional release and of relative axial movement to telescope and be interlocked in either condition by a sear operatively conditioned by a fire selection lever, Release of said telesc'oped members is achieved by the manual movement of said fire selection member and extension to an operative condition under resilient means, said telescopic -members being temporarily held in said extended position bythe bolt recoil spring, and then interlocked by insertion of ammunition magazine.
  • the said tubular members comprise a main or outer member carrying the trigger gear hand stock and the barrel; and an inner tubular member carrying a support for the barrel breech and within the compass of longitudinal axial length of the firearm in a telescoped condition, and being secured and locked in position, both in their folded and operative condition.
  • Fig. l is alongitudinal part sectional elevation of the weapon in its extended and operational condition, v i
  • Fig. 2 is a plan of the device shown in Fig. 1,
  • Fig. 3 is a part sectional elevation of the weaponin its shortened condition and with the butt in its iolded'condition
  • Fig. 4 is a side elevation of Fig. 3,.showing the fire selector device in the safe position when the telescopic parts are interlocked bythe sear,
  • Fig. 5 is a detail of thefolding bayonet locking device
  • Fig. 6 is a detail of magazine mouth locking device for the outer and inner tubular members
  • Fig.7 is a top plan view and Fig. 8 is a transverse seotion, showing additional means of locking the firearm in the extended condition,
  • Fig. 9' is a detail side elevation, partly in section of the modification illustrated in Fig. 4, with the telescopic members extended
  • Fig. 10 is a detail plan view illustrating the modified slot.
  • main tubular element I being external to the the bolt with associated parts including the bolt inner, element 2. adapted on removal of the locking device to slide
  • the external tubular part I carries the hand grip stock A and trigger and trigger mechanism B, the forward barrel support C, and the bracket clip D fast with the forward end of tubular element 1 for bayonet F.
  • the forward part ofthe tubular element I is perf-oratedas at 3 to provide air cooling of the barrel 4, has a locking key slot 5 with an enlargement 6'towards the end of its rearward length, also the forward barrel supportC and bayonet bracket D thereon'carry and protect the forward sight 1.
  • the rear of the The barrel is tubular element I is cut obliquely as shown at 8, Fig. 2 and is provided with an axial slot 9 which is aligned with a like slot 9a of the inner tubular element 2, this said axial slot accommodating the bolt cocking handle l0.
  • These slots 9 and 9a in the two tubular elements remain in mutual axial alignment and become coincident at the overlap when the weapon is in its operative condition.
  • the inner tubular element 2 carries the endcap l l detachably secured in position in a known manner by a bayonet joint. Said:
  • the tubular element 2 also carries at its forward end a supporting collarldzfoh barrel breech, and which also limits. the axial.
  • the mouth of the magazine G when the latter is positioned within the coincident slots acts as a locking device keeping the tubular members in relative position in their extended and operative condition, and is further described hereafter.
  • the ejector slot 22- is of conventional and known design positioned adjacent'the breech. When, however, the weapon is in a telescoped condition and the magazine removed, both these openings otherwise coincident in the tubes l and 2 are closed, thus obscuring these apertures and preventing the admission of dust, dirt or sand.
  • the trigger mechanism B is similar to that described in application for Letters Patent Serial No. 512,004, filed Nov. 27, 1943, which has now matured into Patent No. 2,432,486, relating to trigger. gear for automatic firearms wherein. the
  • sear 23 is pivoted on pin 23a, between two plates 24 (only the rear. one of which is shown), the plate assembly being moved. about pin 23a. by the. trigger 25 when pulled engaging the roller 24a.
  • the tail 23b of sear 23 is slotted and a T-headed sear locking crank lever 28 engages the tail 23b under springloading of plunger 29.
  • the crank lever 28 is mounted on pivot pin 30, its lower arm 28a engaging or otherwise the firing selector arm 3
  • the trigger shoulder engages the roller 24a pivotthe-recoilv of thecartridge case is communicated to the bolt l6 which compresses the spring l8, the latter returning the bolt and striking in to act as an abutment and firing device respectively fora-succeeding round presented from the mouth of themagazine and fed into the breach 45 of the barrel' i in the known manner.
  • a further detent lfi is cut in the bolt IS, with whichthe" sear engages in the telescoped condition, see Fig. 3.
  • the bolt l6 engages the breech face of the barrel 4 and if then the selector lever 32 be set to safe, the sear which passes through-slot 40 in tubular element I, slot 42' in the tubular element 2; is locked in the bolt detent 46.
  • the inner tubular member 2 is provided at its forward extremity with a supporting collar 14, adapted when the firearm is extended'to engage upon a thickened part I5' at the breech" 45 of the barrel 4.
  • the said collar [4 is flanged at Ma, said flange engaging a corresponding flange I5a formed on the. thickened part ofthe barrel 4'.
  • the outer tubular member I is. provided with a rectangular mouth 2! intowhich the ammunition magazine .0: is positioned and locked. in the usuaLwaybycatch 4-9 v
  • the sides of the magazine G closely engage the magazine. opening. 2a.in the wall. of tubular: element 2v thereby lockingboth tubular elements I and 2- into a fixedrelative position.
  • the capv is. capable, under pressure, of axial movement due to a clearance 54" between the lockingcatch 55. and catch slot '56.
  • the tubular. strut member. 51.. of saidiolding built is hinged at itsend. near.v the; cap.
  • Slant/he strut terminal 58 being shaped to embrace a ber 5-1 is provided with a spring loaded plunger filljagainst which is adapted to press the bent over end GI of'a'pressed steel butt plate 62 said butt plate'BZ is hinged to the strut member 51 by pin 63; the plunger 60 being recessed to allow said pin to cross its path without interference. Said pin 63, however, acts as a limiting stop to movementof the plunger 50.
  • the butt plate hinging cumin-63 is adapted to engage the main butt leverarm, as shown in'Fig. 1 by flange E4 engaging thecross piece 5Ia of the compound sided lever-arm 5I.
  • a headed button 65 mounted upon spring 56, said button 65 being adapted when the butt is folded toaster the hole 6 in slot 5 of outertubular element I, see Fig. 2
  • the said butt is folded pulling back' -thebutt plate 62 and nesting the strut member 51 within the sides of the main lever arms 5I-. This disengages the strut terminal 58 from-the shoulder 59 of the cap II allowing said cap II to be then pressedin, thereby freeing the catch52- from the slot 53.
  • the arm BI is then given arcuate movement about the pivot I3 until the butt in its folded condition comes to rest as shown in Fig. 3, the button 65 entering the hole 6 and then being pushed to the forward end of the slot 5, in which position the butt assembly is securely locked against accidental release.
  • the spring I8 causes the tube 2 and the folded butt assembly to move *rearwards in relation to the tube I, the button 65 sliding in the slot 5.
  • the firearm is now fully extended and, when locked by the insertion of the magazine, is ready for use with-the butt still folded. If, however, the butt is required, the tubular members I and 2 are paitiallytelescoped with the magazine removed,
  • the bayonet F is mounted at thev forward end of the tube I upon the ear bracket D in a mannersimilar to that shown in my copending application; Ser. No. 540,693, filed June 16, 1944, the said bayonet being hinged upon a pin III supported insaid ears and formed with a haft II, within which is disposed a spring loaded plunger ll-having an external knurled headlli.
  • a spring loaded plunger ll-having an external knurled headlli To place the-bayonet in operative position it is hinged outwards and upwards about pivot Ill until the plunger engages the circular perforation I4 aligned as a vent-hole in thebarrel muzzlesupport or nose ring C. In this condition it is securely locked and has the shear resistance of the pivot pin I0 and the plunger 72.
  • the bayonet F is displaced for folding by disengaging the plunger I2- from hole 74, hinging the bayonet downward arcuate about its pivot pin I0 and placing same below theouter casing I and pressing its grooves I5 into the clip I6 mounted-0n said tubular element I and causing its pointed end to enter the protector sheath 1! adjacent the trigger guard 18, see Fig. 4.
  • the clip I6 locks the bayonet in its folded condition.
  • the ammunition magazine G is removed leaving the tubular elements I and 2 free to slide one within the other: after the trigger has been pulled to disengage the sear from tube 2 the butt assembly is collapsed and folded forward allowing the button 65 to enter the hole 6 in the key slot 5 in tubular element I.
  • the sear 23 is in engagement with the indent 46 of the bolt through the opening 4!) of tube I and 4
  • the trig er is 'depressed to withdraw the sear from opening 4
  • the trigger is released and the sear is riding on the under surface of'tube 2, towards the opening 42 in the said tube.
  • the selector lever 32 is now set at safe preventing further movement of the sear thereby locking the firearm in the telescoped condition.
  • the bayonet F is now folded and locked in position as previously described.
  • the selector lever is moved to position A releasing the sear when the recoil spring I8 moves theinner tubular member 2 rearward until the breech ring flange I Ia engages the breech flange I5a. of the barrel 4.
  • the butt and bayonet can then beunfolded and locked into position by operations respectively as above described, if desired; by insertion of the magazine the tubular members I and 2 are then interlocked and the firearm is ready for use after the bolt has been cocked.
  • the butt and bayonet can remain in a folded condition after the parts I and 2 are extended and the magazine inserted.
  • the :bayonet clip 16 may be brought nearer the'sheath 'II so that the operator with his thumb about the trigger guard 18 can open the clip 16, release the bayonet F and with an upward jerk cause the bayonet to pivot and align itself with the weapon, the plunger I2 automatically entering the aperture I I in the barrel nose ring 0.
  • the firearm made according to this invention is a complete entity without looseparts, or parts that can be unintentionally displaced or lost and its light weight and compactness are invaluable qualities for arming air borne troops or commandos.
  • a firearm of this class having an operative length of 33" with bayonet and butt extended its overall length with folded bayonet is 25 and 16 with the butt folded.
  • the firearm is telescoped and inoperative its length is only 13".
  • Rigidity of the weapon when operatively extended arises from the fact that there is a mean length of of bearing surface between the concentric tubular members, the length lost between the members I and 2 alone in the telescopic condition being 3%.
  • the enlargement 6, see Fig. 1, may be situated at the extreme rear end of the slot 5, as illustrated at Go in Figs. 9 and 10 so that when the firearm is in the extended condition the button 65 will be in alignment with the'enlargement.
  • the butt is held in in its folded condition when not required by a catch 85 (Fig. 4) mounted on -the outer tubular element I engaging a slot 85 formed in the flange 84 of the butt plate 62.
  • the butt plate When the butt is required the butt plate is gripped by the ends of the pivot pin 63 and lifted to impart arcuate movement to the butt assembly about pivot I3. Since the catch 85 engaging the slot 86 restrains the butt plate 62 at the end remote from pivot pin 63, relative angular movement also occurs between the butt plate 62 and the butt members 5
  • the end cap II on the inner tubular element 2 is secured by a bayonet catch held in position by pressure of the spring I8. To remove the cap it is pressed inwards and rotated and then released. The capability of being pressed is also used to enable the catch 5'2 of the butt assembly to engage the notch 53, after which the cap is locked by the terminal 58 of the strut 51 engaging the shoulder 59.
  • a telescopic firearm comprising a stock section carrying trigger mechanism, a tubular member fixed to the stock section, and a barrel carried by said tubular member and extending longitudinally thereof, a butt section including a tubular member forming a breech block race, and a breech block in said tubular member of the butt section, the tubular member of the butt section being related telescopically to the tubular member fixed to the stock section to enable said sections to be relatively telescoped to shorten the firearm or extended to place the parts thereof in operative position, said trigger mechanism including a sear operative to hold said butt section extended relatively to said stock section.
  • a telescopic firearm comprising a stock section carrying trigger mechanism, a tubular member fixed to the stock section, and a barrel carried by said tubular member and extending longitudinally thereof, a butt section including a tubular member forming a breech block race, a breech block in said tubular member of the butt section, the tubular'member of the butt section being related telescopically to the tubular member fixed to the stock section to enable said sections to be relatively telescoped to shorten the firearm or extended to place the parts in operative position, and a spring acting to extend said butt section relatively to said stock section, said trigger mechanism including a sear constituting means to hold said butt section in telescoped relation with said stock section.
  • a telescopic firearm comprising a stock section carrying trigger mechanism, a tubular member fixed to the stock section, and a barrel carried by said tubular member and extending longitudinally thereof, a butt sectionincluding a tubular member forming a breech block race, a breech block in said tubular member of the butt section, the tubular member of the butt section being related telescopically to the tubular member of the stock section to enable said sections to be relatively telescoped to shorten the-firearm or ex:-
  • said'triggermechanism including a sear operative to hold the butt section in telescoped relation with the stock section and to release the butt section to permit said spring to extend the butt section and to hold it extended relatively to the stock section.
  • a telescopic firearm comprising a stock 560! tion carrying trigger mechanism, a tubular member fixed to the stock section, and a barrel carried by said tubular member and extending longitudinally thereof, a butt section including a tubular member forming a breech block race, a breech block in said tubular member of the butt section, the tubular member of the butt section being related telescopically to the tubular member fixed to the stock section to enable said sections to be relatively telescoped to shorten the firearm or extended-to place the parts in operative position, said trigger mechanism including a sear and fireselection means for settingsaid sear for single shot firing and.
  • said sear being operative when set'for single shot firing condition to releasably hold said butt section extended relatively to said stock section and for releasing the breech block, and operative whenset for safe condition to lock said butt section in telescoped relation with said stock section and lock the breech block in closed position.
  • a telescopic firearm comprising a stock section carrying trigger mechanism, a tubular member fixed to the stock section, and a barrel carried by said tubular member and extendinglongitudinally thereof, a butt section including a tubular member forming a breech block race, a breech block in said tubular member of the butt section, the tubular member of the butt section being related telescopically to the tubular member fixed to the stock section to enable said sections to be relatively telescoped to shorten the firearm or extended to place the parts thereof in operative position, and said tubular members having telescoped portions provided with apertures which register when said butt section and stock section are relatively extended, and an ammunition magazine insertable into said registering apertures and operative to lock said sections in extended relation.
  • a telescopic firearm comprising a stock section carrying trigger mechanism, a tubular member fixed to the stock section, and a barrel carried by said tubular member and extending longitudinally thereof, a butt section including a tubular member forming a breech block race, a breech block in said tubular member of the butt section, the tubular member of the butt section being related telescopically to the tubular member fixed to the stock section to enable said sections to be relatively telescoped to shorten the firearm or extended to place the parts thereof in operative position, said tubular members having telescoped portions provided with apertures which register when said butt section and stock section are relatively extended, an ammunition magazine insertable into said registering apertures, and a detent cooperative with said tubular members to hold them in the relative position in which said apertures register.
  • a telescopic firearm comprising a stock section carrying trigger mechanism, a tubular member fixed to the stock section, and a barrel carried by said tubular member and extending longitudinally thereof, a butt section including a tubular member forming a breech block race,'a breech block in said tubular member of the butt section, the tubular member of the butt section being related telescopically to'the tubular member fixed to the stock section to enable said sections to be relatively telescoped to shorten the firearm or extended to place the parts thereof in operative position, a butt pivoted on said tubular member carried by the butt section to fold onto said tubular member fixed to the stock section, and means on the tubular member fixed to the stock section for holding said butt in folded position thereon while said butt section and stock section are in relatively telescoped and extended relations.
  • a telescopic firearm wherein said enlargement in said slot is located between the ends thereof, and said projection disengageable from said slot through said enlargement while the tubular members carried by said stock and butt sections are partially telescoped.
  • a telescopic firearm wherein said enlargement is located at the rear end of said slot, and said projection is disengageable from said slot through said enlargement while said butt section is in extended relation with said stock section.
  • a firearm comprising a casing having a breechblock mounted therein, a recoil spring for operatingsaid breechblock,--a cap mounted mova'barrel :surroundedby said tubularmember and supported therein remote irom the breech end, a-r-colla-r on the breech end of-the -,barr el,- and a tubular .member fixed to the stock section and enclosing the barrel, and a-butt section includedin 'a second tubular member mounted telescopically within the first-mentioned tubular member for movement relatively thereto ,into telescoped position to shorten the firearm-and into extended position to lengthen the firearm and place the parts thereof in operative position, said second tubular member having a breech block :reciprocable therein, and a :recoil spring interposed between the breech block and-said second tubular member and actingl'toextendthe.
  • a telescopic firearm comprising outer and inner telescopic sections, a barrel and trigger mechanism fixed to-said outer section, abreech block ,reciprocable in'saidinner section, and means associated with said trigger mechanism to latch said telescopic sections in telescopedrelation.
  • a telescopic firearm as set forth in claim 15 including a fire selection member .-assoc,iated with said sear and movable into a position to lock saidsear in engagement with said .detent in :the breech block,

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US540928A 1944-03-13 1944-06-19 Telescopic firearm Expired - Lifetime US2437548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4640/44A GB581820A (en) 1944-03-13 1944-03-13 A new or improved folding and telescoping firearm

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US2437548A true US2437548A (en) 1948-03-09

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BE (1) BE461808A (enrdf_load_stackoverflow)
FR (1) FR918172A (enrdf_load_stackoverflow)
GB (1) GB581820A (enrdf_load_stackoverflow)
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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683948A (en) * 1950-05-29 1954-07-20 Russell M Catron Collapsible stock for handguns
US3798819A (en) * 1972-03-09 1974-03-26 Remington Arms Co Inc Auxiliary gun stock
US4016800A (en) * 1973-12-28 1977-04-12 Sarmac S.A. Portable firearm with a retractable barrel
US4383384A (en) * 1980-12-03 1983-05-17 Dean Machine Products, Inc. Folding stock for firearms and firearms employing same
US4649800A (en) * 1985-05-24 1987-03-17 Shepherd Industries Limited Self-contained blowback-type firing unit
US4833970A (en) * 1987-08-31 1989-05-30 Gary Wilhelm Submachine gun
US5778588A (en) * 1997-01-30 1998-07-14 Allen, Iii; Charles Folding stock for a pistol
US6925743B1 (en) 2002-11-06 2005-08-09 Digiovanna Thomas Tactical duo stock
US7337573B1 (en) 2002-11-06 2008-03-04 Digiovanna Thomas Tactical duostock
US20090211140A1 (en) * 2008-02-27 2009-08-27 Bernard Hope Rolfe Center balanced gunstock with pistol grip and trigger actuator rod and folding front foregrip
US7584567B1 (en) * 2004-07-06 2009-09-08 Desomma Frank Hand guard assembly for firearms
US20100212206A1 (en) * 2005-04-28 2010-08-26 R/M Equipment, Inc. Collapsible firearm stock assembly
US20110023699A1 (en) * 2007-06-06 2011-02-03 Christopher Gene Barrett Firearm with gas system accessory latch
US20170010065A1 (en) * 2014-12-19 2017-01-12 Magpul Industries Corp. Folding stock
USD787005S1 (en) 2016-01-18 2017-05-16 Patriot Ordnance Factory, Inc. Firearm upper receiver
US9664478B2 (en) * 2012-10-13 2017-05-30 Rmdi, Llc Adjustable firearm stock
USD794153S1 (en) 2013-03-15 2017-08-08 Patriot Ordnance Factory, Inc. Firearm trigger
US9829272B2 (en) * 2016-01-15 2017-11-28 Ambimjb, Llc Foldable stock
USD818556S1 (en) 2016-03-01 2018-05-22 Skychase Holdings Corporation Folding stock for a firearm
US10012462B2 (en) 2015-01-20 2018-07-03 Patriot Ordnance Factory, Inc. Bolt carrier support system
US10036601B2 (en) 2013-10-29 2018-07-31 Patriot Ordnance Factory, Inc. Ambidextrous bolt hold open
US10054393B2 (en) 2016-03-03 2018-08-21 Skychase Holdings Corporation Folding stock for a pistol or other firearm
USD828476S1 (en) 2016-12-08 2018-09-11 Vista Outdoor Operations Llc Firearm stock
US10132587B2 (en) 2016-01-19 2018-11-20 Patriot Ordnance Factory, Inc. Reduced weight firearm
US10156421B2 (en) 2016-07-01 2018-12-18 Vista Outdoor Operations Llc Adjustable length bi-directional folding stock for firearm
US10197348B2 (en) 2015-01-20 2019-02-05 Patriot Ordnance Factory, Inc. Adjustable gas block system
US10578379B2 (en) 2015-11-04 2020-03-03 Patriot Ordinance Factory, Inc. Firearm bolt carrier assembly kit
US11162748B2 (en) * 2019-01-20 2021-11-02 Firearm Consulting Group, LLC Firearm
US12345489B2 (en) 2021-10-29 2025-07-01 Browning Trigger mechanism for a firearm

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816484A (en) * 1951-08-27 1957-12-17 Richard R Grages Automatic firearm of the blow back type
DE1035530B (de) * 1953-04-17 1958-07-31 Willi R Daugs Maschinenpistole

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US580925A (en) * 1897-04-20 Firearm
US1096861A (en) * 1913-01-28 1914-05-19 Edward E Redfield Gun-stock.
US1315215A (en) * 1919-04-14 1919-09-09 Jacob Alexander Davidson Rifle-stock.
US1759277A (en) * 1927-08-25 1930-05-20 Armamenti Militari S A Automatic firearm
US2072197A (en) * 1932-07-06 1937-03-02 Bergmann Theodor Emil Automatic firearm
US2330637A (en) * 1942-07-13 1943-09-28 Cosimo D Spagnolo Retractable bayonet

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US580925A (en) * 1897-04-20 Firearm
US1096861A (en) * 1913-01-28 1914-05-19 Edward E Redfield Gun-stock.
US1315215A (en) * 1919-04-14 1919-09-09 Jacob Alexander Davidson Rifle-stock.
US1759277A (en) * 1927-08-25 1930-05-20 Armamenti Militari S A Automatic firearm
US2072197A (en) * 1932-07-06 1937-03-02 Bergmann Theodor Emil Automatic firearm
US2330637A (en) * 1942-07-13 1943-09-28 Cosimo D Spagnolo Retractable bayonet

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683948A (en) * 1950-05-29 1954-07-20 Russell M Catron Collapsible stock for handguns
US3798819A (en) * 1972-03-09 1974-03-26 Remington Arms Co Inc Auxiliary gun stock
US4016800A (en) * 1973-12-28 1977-04-12 Sarmac S.A. Portable firearm with a retractable barrel
US4383384A (en) * 1980-12-03 1983-05-17 Dean Machine Products, Inc. Folding stock for firearms and firearms employing same
US4649800A (en) * 1985-05-24 1987-03-17 Shepherd Industries Limited Self-contained blowback-type firing unit
US4833970A (en) * 1987-08-31 1989-05-30 Gary Wilhelm Submachine gun
US5778588A (en) * 1997-01-30 1998-07-14 Allen, Iii; Charles Folding stock for a pistol
US7104001B1 (en) 2002-11-06 2006-09-12 Digiovanna Thomas Tactical duostock
US6925743B1 (en) 2002-11-06 2005-08-09 Digiovanna Thomas Tactical duo stock
US7337573B1 (en) 2002-11-06 2008-03-04 Digiovanna Thomas Tactical duostock
US7584567B1 (en) * 2004-07-06 2009-09-08 Desomma Frank Hand guard assembly for firearms
US20100212206A1 (en) * 2005-04-28 2010-08-26 R/M Equipment, Inc. Collapsible firearm stock assembly
US7827721B2 (en) * 2005-04-28 2010-11-09 R/M Equipment, Inc. Collapsible firearm stock assembly
US20110023699A1 (en) * 2007-06-06 2011-02-03 Christopher Gene Barrett Firearm with gas system accessory latch
US7891284B1 (en) * 2007-06-06 2011-02-22 Christopher Gene Barrett Firearm with gas system accessory latch
US20090211140A1 (en) * 2008-02-27 2009-08-27 Bernard Hope Rolfe Center balanced gunstock with pistol grip and trigger actuator rod and folding front foregrip
US9664478B2 (en) * 2012-10-13 2017-05-30 Rmdi, Llc Adjustable firearm stock
USD794153S1 (en) 2013-03-15 2017-08-08 Patriot Ordnance Factory, Inc. Firearm trigger
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GB581820A (en) 1946-10-25
BE461808A (enrdf_load_stackoverflow)
NL72887C (enrdf_load_stackoverflow)
FR918172A (fr) 1947-01-31

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