US1864374A - Firearm - Google Patents

Firearm Download PDF

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Publication number
US1864374A
US1864374A US584855A US58485532A US1864374A US 1864374 A US1864374 A US 1864374A US 584855 A US584855 A US 584855A US 58485532 A US58485532 A US 58485532A US 1864374 A US1864374 A US 1864374A
Authority
US
United States
Prior art keywords
barrel
cartridge chamber
projectile
space
gases
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
US584855A
Other languages
English (en)
Inventor
Romberg Heinrich
Schuler 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.)
Rheinische Metallwaaren and Maschinenfabrik AG
Original Assignee
Rheinische Metallwaaren and Maschinenfabrik 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 Rheinische Metallwaaren and Maschinenfabrik AG filed Critical Rheinische Metallwaaren and Maschinenfabrik AG
Application granted granted Critical
Publication of US1864374A publication Critical patent/US1864374A/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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/28—Gas-expansion chambers; Barrels provided with gas-relieving ports
    • 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
    • F41A1/00—Missile propulsion characterised by the use of explosive or combustible propellant charges
    • F41A1/06—Adjusting the range without varying elevation angle or propellant charge data, e.g. by venting a part of the propulsive charge gases, or by adjusting the capacity of the cartridge or combustion chamber

Definitions

  • the part ot the barrel having turrows or grooves is provided with lateral holes ⁇ which may be more or less throttled by means of a control member to conduct away a smaller orI greater portion of the.
  • the driving ⁇ gases are drawn 0E by means of an annular space or radial clearance in the cartridge chamber which space surrounds the projec- 584,B55, and in Germany January ⁇ 9, 1931.
  • the projectile extending now already before the firing partially over the drawing ofi portion in the barrel, slides, at the beginning ⁇ of its movement completely over the holes, without forming chips and a sufficient amount of the driving gases escapes, as these gases are developed only after the drawing oit holes have been uncovered and therefore'have still a very small forward velocity.
  • the gases passing through the annular space may be conducted into a closed additional space which, acting as an en largement of the combustion space, reduces themaximum gas pressure and therefore the medium gas pressure also.
  • the driving gases may also directly be conducted into the atmosphere by way ot an intermediate chamber and in this way they are absolutely prevented from acting upon the projectile.
  • the barrel is composed of two parts, a hind or rear part a, containing the cartridge chamber and a'fterwardscalled cartridge chamber, and a front portion b in which the furrows or grooves b1 are cut.
  • the part b is screwed into a female thread al of the cartridge chamber ⁇ an and may be, by means of a locking device di, d2, adjusted and fixed therein from a position in which the front face b2 of the outer conical hind end b3 of the barrel part b is in contact with a corresponding counter face a2 of the cartridge chamber to positions in which a space of different width is formed between these two surfaces.
  • the mouth piece a3 of the cartridge chamber is hollow, so that a free annular space e remains surrounding the hind or rear vend b3 of the portion Z2 providedV with the furrows or grooves 1.v r)This space e forms the continuation of the space c.
  • the portion of the barrel provided with the furrows or grooves 51' is screwed into the cartridge chamber a until its hind or rear face b2 contacts with the counter face a2 of the cartridge chamber a in which position the part b is locked against rotation by means of the locking device d1, d2. Then all the gases developed by the driving charge of the cartridge will be active to propel the projectile.
  • the portion o of the barrel, having the f'urrowsfor grooves 1 is, by Yscrewing out, shifted to the front in the cartridge chamber a, so that between'the surface b2, a2 of these two parts an annular space c or radial clear-V ance fof determined Width is formed through Which, according to the width adjusted, a smaller or greater portion of the driving gases developed behind the projectile is, partially used only or n-ot usedat all, passed into the space e and from there,by way of the holes (Z4, into the atmosphere.
  • a fire arm having a device for altering the starting velocity of the projectile'by conducting a portion of the driving gases out o f the barrel, a cartridge chamber, a female thread at the front end of said chamber, a
  • barrel portion having furrows orV grooves, a thread at the hind or rear end of said barrel portion fitting said female thread, said barrel portion having a conical rear end extending into a correspondingly shaped portion of said cartridge chamber in such a manner, that an annular space is formed between said parts which communicates with an additional space formed between the inclined surfaces Vof both saidrpar'ts and whichin turn communicates withsaid bores provided in said cartridge thread at the hind or rear end of said barrel' portion fitting said female thread, said barrel portion having a conical rear end extending into a correspondingly shaped portion of said cartridge chamber, a locking member carried by said cartridge chamber and a plurality ef locking members provided at said barrel portion and cooperating with said first mentioned locking member toA fix the two parts screwed together in the adjusted position against relative rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Toys (AREA)
US584855A 1931-01-09 1932-01-05 Firearm Expired - Lifetime US1864374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE158863X 1931-01-09

Publications (1)

Publication Number Publication Date
US1864374A true US1864374A (en) 1932-06-21

Family

ID=5679928

Family Applications (1)

Application Number Title Priority Date Filing Date
US584855A Expired - Lifetime US1864374A (en) 1931-01-09 1932-01-05 Firearm

Country Status (5)

Country Link
US (1) US1864374A (en, 2012)
BE (1) BE447475A (en, 2012)
CH (1) CH158863A (en, 2012)
GB (1) GB379202A (en, 2012)
NL (1) NL33177C (en, 2012)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420492A (en) * 1945-01-30 1947-05-13 William M Marseilles Recoil absorber for guns
US2516926A (en) * 1946-02-28 1950-08-01 Clarence E Simpson Machine gun trainer
US2736117A (en) * 1951-12-18 1956-02-28 Firearm with aluminum barrel and receiver
US2736118A (en) * 1951-12-18 1956-02-28 Firearm with chamber member remov-
US2791940A (en) * 1948-04-28 1957-05-14 Sumpter M Speake Device for purging guns
US2801416A (en) * 1952-08-07 1957-08-06 Remington Arms Co Inc Means for controlling the velocity of projectiles
US3047873A (en) * 1953-01-24 1962-08-07 Walter E Schulz Explosively actuated driving tool
US3050732A (en) * 1957-11-29 1962-08-28 Termet Pierre Fastener driving interlocking pistol or tool
US3307451A (en) * 1963-10-02 1967-03-07 Dynamit Nobel Ag Pressure control device
US3611867A (en) * 1969-11-03 1971-10-12 Us Army Emergency weapon for firing high-velocity grenade rounds
US3730050A (en) * 1970-06-05 1973-05-01 Hughes Tool Co Variable volume firing chamber
US5412895A (en) * 1993-03-09 1995-05-09 Krieger; John M. Floating gun barrel mount
US20070084102A1 (en) * 2003-05-02 2007-04-19 O'dwyer James M Combined electrical mechanical firing systems
US20090320673A1 (en) * 2008-06-27 2009-12-31 Rheinmetall Waffe Munition Gmbh Gun barrel
US8783155B2 (en) 2009-02-06 2014-07-22 Metal Storm Limited Stacked projectile launcher and associate methods
US20140352188A1 (en) * 2011-12-20 2014-12-04 Battelle Memorial Institute Caseless Projectile and Launching System
US20150168092A1 (en) * 2013-12-12 2015-06-18 Ra Brands, L.L.C. Gas vent for firearm
US20150247694A1 (en) * 2014-02-28 2015-09-03 Robert S. Randazzo Firearm barrel assembly with ported chamber
US11796268B2 (en) * 2020-08-12 2023-10-24 The United States Of America, As Represented By The Secretary Of The Navy Pressure discriminating cartridge chamber

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11201610322XA (en) * 2014-06-13 2017-01-27 Dynamit Nobel Defence Gmbh Firing apparatus with adjustable pressure difference in the firing barrel for rocket artillery or rifles
CN104406455B (zh) * 2014-11-24 2016-05-04 重庆建设工业(集团)有限责任公司 半自动猎枪的导气调节结构
CN110906789A (zh) * 2018-09-17 2020-03-24 高荣江 高超声速火炮
CN114963864B (zh) * 2022-04-14 2024-05-14 中国人民解放军陆军工程大学 一种泄压式火炮初速连续化装置及控制方法

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420492A (en) * 1945-01-30 1947-05-13 William M Marseilles Recoil absorber for guns
US2516926A (en) * 1946-02-28 1950-08-01 Clarence E Simpson Machine gun trainer
US2791940A (en) * 1948-04-28 1957-05-14 Sumpter M Speake Device for purging guns
US2736117A (en) * 1951-12-18 1956-02-28 Firearm with aluminum barrel and receiver
US2736118A (en) * 1951-12-18 1956-02-28 Firearm with chamber member remov-
US2801416A (en) * 1952-08-07 1957-08-06 Remington Arms Co Inc Means for controlling the velocity of projectiles
US3047873A (en) * 1953-01-24 1962-08-07 Walter E Schulz Explosively actuated driving tool
US3050732A (en) * 1957-11-29 1962-08-28 Termet Pierre Fastener driving interlocking pistol or tool
US3307451A (en) * 1963-10-02 1967-03-07 Dynamit Nobel Ag Pressure control device
US3611867A (en) * 1969-11-03 1971-10-12 Us Army Emergency weapon for firing high-velocity grenade rounds
US3730050A (en) * 1970-06-05 1973-05-01 Hughes Tool Co Variable volume firing chamber
US5412895A (en) * 1993-03-09 1995-05-09 Krieger; John M. Floating gun barrel mount
US20070084102A1 (en) * 2003-05-02 2007-04-19 O'dwyer James M Combined electrical mechanical firing systems
US7698849B2 (en) 2003-05-02 2010-04-20 Metal Storm Limited Combined electrical mechanical firing systems
US20090320673A1 (en) * 2008-06-27 2009-12-31 Rheinmetall Waffe Munition Gmbh Gun barrel
US8215221B2 (en) * 2008-06-27 2012-07-10 Rheinmetall Waffe Munition Gmbh Gun barrel
US8783155B2 (en) 2009-02-06 2014-07-22 Metal Storm Limited Stacked projectile launcher and associate methods
US9677837B2 (en) 2009-02-06 2017-06-13 Defendtex Pty, Ltd. Stacked projectile launcher and associated methods
US9500420B2 (en) * 2011-12-20 2016-11-22 Battelle Memorial Institute Caseless projectile and launching system
US20140352188A1 (en) * 2011-12-20 2014-12-04 Battelle Memorial Institute Caseless Projectile and Launching System
US9759499B2 (en) 2011-12-20 2017-09-12 Battelle Memorial Institute Caseless projectile and launching system
US9383154B2 (en) * 2013-12-12 2016-07-05 Ra Brands, L.L.C. Gas vent for firearm
US20150168092A1 (en) * 2013-12-12 2015-06-18 Ra Brands, L.L.C. Gas vent for firearm
US9921019B2 (en) 2013-12-12 2018-03-20 Ra Brands, L.L.C. Gas vent for firearm
US20150247694A1 (en) * 2014-02-28 2015-09-03 Robert S. Randazzo Firearm barrel assembly with ported chamber
US9395135B2 (en) * 2014-02-28 2016-07-19 Robert S. Randazzo Firearm barrel assembly with ported chamber
US11796268B2 (en) * 2020-08-12 2023-10-24 The United States Of America, As Represented By The Secretary Of The Navy Pressure discriminating cartridge chamber

Also Published As

Publication number Publication date
GB379202A (en) 1932-08-25
NL33177C (en, 2012)
BE447475A (en, 2012)
CH158863A (de) 1932-12-15

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