US3418741A - Firearm - Google Patents

Firearm Download PDF

Info

Publication number
US3418741A
US3418741A US575325A US57532566A US3418741A US 3418741 A US3418741 A US 3418741A US 575325 A US575325 A US 575325A US 57532566 A US57532566 A US 57532566A US 3418741 A US3418741 A US 3418741A
Authority
US
United States
Prior art keywords
firearm
barrel
firing
automatic
bullet
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
US575325A
Other languages
English (en)
Inventor
Tschoepe Bruno
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Application granted granted Critical
Publication of US3418741A publication Critical patent/US3418741A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F41A33/00—Adaptations for training; Gun simulators
    • 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
    • F41A11/02—Modular concepts, e.g. weapon-family concepts
    • 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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • 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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/10—Insert barrels, i.e. barrels for firing reduced calibre ammunition and being mounted within the normal barrels
    • 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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/26—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means specially adapted for recoil reinforcement, e.g. for training purposes

Definitions

  • thermoplastic materials may be elastically defromed Within certain limits by the application of pressure, and more particularly maybe deformed the more the higher the applied pressure.
  • a plastic body of predetermined cross section can be pressed or forced through an aperture correspondingly smaller in cross section by the application of a correspondingly high pressure and under elastic deformation.
  • the pressure necessary for the forcing of the plastic body through the aperture can be determined at the desired magnitude.
  • the present invention makes use of this fact in that there is provided for the firearm an interchangeable barrel for the firing of the practice ammunition, interchangeable for the barrel of normal caliber ⁇ for the firing of the live ammunition, whose bore is constructed of undersized caliber for achieving the pressing-through resistance of the bullet necessary for the automatic function of the arm or gun.
  • provision may additionally be made to slightly increase the charge of the cartridge.
  • an inlluence may ybe exercised in a limited manner on the cross-sectional ratio between bullet and bore of the practice barrel necessary for the requisite pressing-through resistance.
  • the cross-sectional ratio which differs from case to case and which inter alia, is influenced by or depends from the bullet caliber, from the type of thermoplastic material utilized for the practice ammunition, from the intended bullet range and in connection therewith from the bullet weight, from the weight and the breech closing spring force of the .breech mechanism, etc. may be determined relatively easily, possibly experimentally, for the existing conditions existing in a given case. For example, it was possible to determine experimentally that with the aforementioned plastic bullet having a weight of 0.42 gram, a completely satisfactory automatic functioning of the firearm could be achieved lif the barrel caliber was reduced from 9 mm. to 7.5 mm. and the charge was slightly increased. The cases were ejected in every instance completely satisfactory and a latching of the breech mechanism was realized during single shot firing.
  • the undersized caliber barrel may also be rigidly installed into a firearm that is provided exclusively for firing practice ammunition,
  • the measures according to the present invention entail, in addition to safeguarding the automatic function of the arm, additionally the advantage that all of the remaining parts of the rearm or gun can be constructed identical with a corresponding firearm or gun for the firing of live ammunition whereby the manufacture of the practice arm is considerably simplified and the cost thereof reduced.
  • Another object of the present invention resides in a fully automatic or semi-automatic firearm which can be utilized for firing practice ammunition without endangering the fully automatic or semi-automatic operation thereof even when utilizing the firearm for single shot firing.
  • a further object of the present invention resides in a firearm that is relatively inexpensive in manufacture and assembly yet permits the use of practice ammunition consisting of thermoplastic material bullets of relatively light weight without jeopardizing the correct automatic or semi-automatic functioning of the firearm.
  • a further object of the present invention resides in a firearm for use with practice ammunition consisting of bullets made of thermoplastic material in which the basic parts of the firearm including the semi-automatic or fully automatic firing and breech mechanisms are identical with those used in the same firearm for firing live ammunition yet can be manufactured in a simple manner and without excessive cost.
  • FIGURE l illustrates schematically a firearm provided with an interchangeable barrel for live ammunition
  • FIGURE 2 illustrates schematically a firearm provided with an interchangeable barrel for practice ammunition.
  • reference numeral 10 generally designates therein a conventional semi-automatic or fully automatic gun or firearm of conventional construction including a conventional feed, ejection and breech mechanisms, etc. and a barrel 11 for the firing of normal live ammunition detachably secured in a co-nventional manner.
  • the barrel 1l has a bore with a diameter d corresponding to the caliber of the live ammunition 12.
  • a substitute barrel 1l for the firing of practice ammunition is shown in FIGURE 2 as having a
  • the barrel l1 thereby has a bore with a diameter d-x, whereby the reduction x is so selected as to produce the necessary resistance to a forcing or pressing through of the thermoplastic bullet as is required for producing the necessary pressure to actuate the semi-automatic or automatic means of the gun. Since all parts of the gun are of conventional construction, known per se in the art, a detailed description thereof is dispensed with herein.
  • a firearm having automatic gas actuated recoil mechanisms and a barrel having a cartridge chamber for receiving and detonating a cartridge having a projectile of the same fixed caliber, in combination with the improvement comprising the barrel having a projectile guiding bore with a cartridge chamber end of substantially less than said fixed caliber.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Toys (AREA)
US575325A 1965-09-08 1966-08-26 Firearm Expired - Lifetime US3418741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0048145 1965-09-08

Publications (1)

Publication Number Publication Date
US3418741A true US3418741A (en) 1968-12-31

Family

ID=7050931

Family Applications (1)

Application Number Title Priority Date Filing Date
US575325A Expired - Lifetime US3418741A (en) 1965-09-08 1966-08-26 Firearm

Country Status (6)

Country Link
US (1) US3418741A (enEXAMPLES)
BE (1) BE686447A (enEXAMPLES)
DE (1) DE1553856A1 (enEXAMPLES)
GB (1) GB1124729A (enEXAMPLES)
LU (1) LU51889A1 (enEXAMPLES)
NL (1) NL6610154A (enEXAMPLES)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040244254A1 (en) * 2003-06-09 2004-12-09 Barfield Christopher A.. Firearm safety device
US20090199455A1 (en) * 2008-02-12 2009-08-13 Hillhouse Darrell R Rod trigger grip/hook holder
US10883786B2 (en) * 2015-10-18 2021-01-05 William D. Reilly Sub-mass projectile for a firearm
US20210262753A1 (en) * 2018-06-29 2021-08-26 Utm Limited Conversion kit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495305A1 (fr) * 1980-11-28 1982-06-04 Poudres & Explosifs Ste Nale Systeme d'arme comportant un fusil polyvalent
GB2136935B (en) * 1983-03-26 1986-11-19 Hilton Gun Co Firearms
DE19529483C1 (de) * 1995-08-10 1997-01-02 Heckler & Koch Gmbh Selbstladegewehr mit Schwenklauf

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US660496A (en) * 1899-07-15 1900-10-23 William S Evans Gun-barrel.
FR756432A (fr) * 1932-06-08 1933-12-08 Arme à feu automatique et procédé pour la rendre capable de tirer des cartouches de calibre réduit
US2742821A (en) * 1945-04-17 1956-04-24 Leroy R Sweetman Vent for tapered bore gun
US3326133A (en) * 1963-09-07 1967-06-20 Dynamit Nobel Ag Practice ammunition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US660496A (en) * 1899-07-15 1900-10-23 William S Evans Gun-barrel.
FR756432A (fr) * 1932-06-08 1933-12-08 Arme à feu automatique et procédé pour la rendre capable de tirer des cartouches de calibre réduit
US2742821A (en) * 1945-04-17 1956-04-24 Leroy R Sweetman Vent for tapered bore gun
US3326133A (en) * 1963-09-07 1967-06-20 Dynamit Nobel Ag Practice ammunition

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040244254A1 (en) * 2003-06-09 2004-12-09 Barfield Christopher A.. Firearm safety device
US20050188581A1 (en) * 2003-06-09 2005-09-01 Barfield Christopher A. Firearm safety device
US20050188586A1 (en) * 2003-06-09 2005-09-01 Barfield Christopher A. Firearm safety device
US6968770B2 (en) 2003-06-09 2005-11-29 Barfield Christopher A Firearm safety device
US6994011B2 (en) 2003-06-09 2006-02-07 Barfield Christopher A Firearm safety device
US8046952B2 (en) * 2008-02-12 2011-11-01 Hillhouse Darrell R Rod trigger grip/hook holder
US20090199455A1 (en) * 2008-02-12 2009-08-13 Hillhouse Darrell R Rod trigger grip/hook holder
US10883786B2 (en) * 2015-10-18 2021-01-05 William D. Reilly Sub-mass projectile for a firearm
AU2015412218B2 (en) * 2015-10-18 2022-02-10 William Reilly Sub-mass projectile for auto loading firearm and methods
US11828555B2 (en) 2015-10-18 2023-11-28 William D. Reilly Sub-mass projectile for a firearm
US20240060741A1 (en) * 2015-10-18 2024-02-22 William D. Reilly Sub-mass projectile for a firearm
US12313358B2 (en) * 2015-10-18 2025-05-27 William D. Reilly Sub-mass projectile for a firearm
US20210262753A1 (en) * 2018-06-29 2021-08-26 Utm Limited Conversion kit
US12228362B2 (en) * 2018-06-29 2025-02-18 Utm Limited Conversion kit

Also Published As

Publication number Publication date
BE686447A (enEXAMPLES) 1967-02-15
GB1124729A (en) 1968-08-21
NL6610154A (enEXAMPLES) 1967-03-09
DE1553856A1 (de) 1970-07-30
LU51889A1 (enEXAMPLES) 1966-11-07

Similar Documents

Publication Publication Date Title
US6931978B1 (en) Rebound attenuation device for automatic firearms
US7467581B2 (en) Semi-automatic rifle
US9121614B2 (en) Cartridges and modifications for M16/AR15 rifle
US3988964A (en) Gas operated firearm with metering adjustment
US3491650A (en) Firearm
UA74570C2 (en) Weapon for missile shooting and recoil control mechanism for weapon
US3261264A (en) Gas operated firearm
US3667147A (en) Rising block rifle and feed mechanism therefor
US20180112945A1 (en) Firearm having a removalbe striker housing
US5710389A (en) Breech bolt and lock assembly
US20240288236A1 (en) Firearm
US3345770A (en) Automatic rifle for firing caseless ammunition
US4131052A (en) Drum cam with anti hang-fire feature
US2093169A (en) Automatic firearm, in particular machine gun
US5581926A (en) Manually actuated rifle
US3418741A (en) Firearm
US5299373A (en) Hand-gun with moving cartridge chamber magazine
US7617758B2 (en) Firing device
US5924230A (en) Resilient breech firearm
US3225657A (en) Closed breech gun
US3483648A (en) Anti-recoil firearm
US4278008A (en) Separate loading ammunition automatic cannon
US2883911A (en) Machine gun
US10890392B1 (en) Guide rod for auto reloading firearm
RU2080539C1 (ru) Автомат