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US1393057A - Gun-barrel with a. breech-piece screwed on an a-tube - Google Patents

Gun-barrel with a. breech-piece screwed on an a-tube Download PDF

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Publication number
US1393057A
US1393057A US428087A US42808720A US1393057A US 1393057 A US1393057 A US 1393057A US 428087 A US428087 A US 428087A US 42808720 A US42808720 A US 42808720A US 1393057 A US1393057 A US 1393057A
Authority
US
United States
Prior art keywords
breech
piece
tube
gun
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
US428087A
Inventor
Vollmer John
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl 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
Priority to DE1917302547D priority Critical patent/DE302547C/de
Priority to GB17888/20A priority patent/GB145643A/en
Priority to FR525551A priority patent/FR525551A/en
Priority to NL16720A priority patent/NL11234C/xx
Application filed by Krupp Stahl AG filed Critical Krupp Stahl AG
Priority to US428087A priority patent/US1393057A/en
Application granted granted Critical
Publication of US1393057A publication Critical patent/US1393057A/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
    • F41A21/48—Barrel mounting means, e.g. releasable mountings for replaceable barrels
    • F41A21/482—Barrel mounting means, e.g. releasable mountings for replaceable barrels using continuous threads on the barrel

Definitions

  • JOHN VOLLMER JOHN VOLLMER, OF ESSEN, GERMANY, ASSIGNOR TO FRIED.
  • This invention relates to gun-barrels having a breech-piece screwed on an A-tube.
  • the object of the invention is, chiefly, to provide an arrangement which will render it possible to assemble and disconnect easily and without injury to the screw thread the breech-piece and the A-tube.
  • the drawing represents a longitudinal section of the parts in question of a constructional example of the invention.
  • the gun-barrel consists of an A-tube A and a breech-piece B, the latter being formed with a jacket portion 6 which envelops the rear portion of the A-tube.
  • the connection between the A-tube and the breech piece is obtained by means of the screw threads a 6 which are so designed that during the operation of screwing the two parts together, a certain amount of clearance exists, both in the axial and in the radial direction between the screw thread at of the A-tube and'the female thread b in the breech-piece, the clearance in the radial direction remaining even after the assembling operation is completed.
  • the A-tube is cut, both in front and in rear of the thread a with annular groves a for the reception of a ring C made of a comparatively soft material, brass, for instance.
  • the external cylindrical surfaces 0 of the rings C are intended to bear against cylindrical surfaces 1) prepared in the breech-piece B- Conical wedges D are driven into recesses the walls of which lie on the front end face of the breech-piece and, on the other hand, on the rear face of a collar a formed on the A-tube, the wedlges D being secured in position by a ring fixed over the collar a
  • the operation of screwing the breech piece on the A-tube is performed, with great ease, owing to the clearance existingin the screw connection a 6 When the operation is nearing its end, the surfaces 0 of the rings C bear against the surfaces 6 of the breech-piece B, so-as to accurately center the A-tube within the breech-piece.
  • the recesses for the wedges D are bored, the wedges driven in and secured by means of the ring E.
  • the screw threads a b are made to bear against each other in the axial direction with so great a pressure as to insure a rigid connection between the breech-piece and the A-tube.
  • the clearance existing in the radial direction between the threads (1 6 remains and is not lost even when the A-tube expands on firing.
  • the pressure then set up is supported by the surfaces 0 6 so that gripping of the screw thread is prevented. Neither can gripping occur on the bearing surfaces 0 5 since the rings C are made of softer material than the A-tube and breech-piece, and are flattened out by excessive pressure.
  • the wedges D having previously been removed, the breech-piece can be unscrewed from the A-tube by a slight effort and without injury to one of the parts.
  • a gun barrel and breech-piece screwthreadedly united said union being formed so as to provide a radial clearance between the parts
  • said gun barrel and breech-piece being formed with bearing surfaces on both sides of said screw-threads,'said surfaces being curved concentrically to the bore axis of the gun barrel and cooperating to maintain said radial clearance when the parts are screwed together.
  • a union for a gun barrel and breechpiece characterized by the provision of screw-threads on the 11 barrel, cooperating screw-threads on th: breech-piece, said screw-threads being so formed as to allow a clearance radially between the screwthreads of the gun barrel and breech-piece, said breech-piece being provided with cylindrical bearing surfaces, rings of comparatively soft material secured to said gun barrel and contacting said cylindrical bearing surfaces, to maintain said radial clearance.
  • An arrangement for connecting a gun barrel and breech-piece comprising screwthreads formed upon the gun barrel, cooperating screw-threads formed upon the breechand breech-piece for closing the axial clearpiece, said screw-threads being so formed as ance between said cocperating screw-threads. 1 to provide a clearance axially and radially
  • the foregoing specification signed at Es- When the breech-piece is connected to the sen, Germany, this 24th day of June, 1920.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Drying Of Solid Materials (AREA)
  • Drilling Tools (AREA)

Description

J. VOLLMER.
GUN BARREL WITH A BREECH PIECE SCREWED ON AN A-TUBE.
APPLICATION FILED DEC.3,1920.
Patented Oct. 11, 1921.
4. I A "I UNITED STATES PATENT orrica,
JOHN VOLLMER, OF ESSEN, GERMANY, ASSIGNOR TO FRIED. KRUPP .AKTIENGESELL- SCHAFT, OF ESSEK-ON-THEFRUHR, GERMANY.
GUN-BARREL WITH A BREECH-PIECE SCREWED ON AN A-TUIBE.
Specification of Letters Patent.
Patented Oct. 11, 1921.
Application filed December 3, 1920. Serial No. 428,087.
To all whom. it may concern:
Be it known that I, JOHN VOLLMER, residing at Essen, Germany, a citizen of the German Repubhc, have invented a certain new and useful Improvement in Gun-Barrel with a Breech-Piece Screwed on an A-Tube (for which I have filed application in Germany, May 18, 1917), of which the following is a specification.
This invention relates to gun-barrels having a breech-piece screwed on an A-tube. The object of the invention is, chiefly, to provide an arrangement which will render it possible to assemble and disconnect easily and without injury to the screw thread the breech-piece and the A-tube.
The drawing represents a longitudinal section of the parts in question of a constructional example of the invention.
The gun-barrel consists of an A-tube A and a breech-piece B, the latter being formed with a jacket portion 6 which envelops the rear portion of the A-tube. The connection between the A-tube and the breech piece is obtained by means of the screw threads a 6 which are so designed that during the operation of screwing the two parts together, a certain amount of clearance exists, both in the axial and in the radial direction between the screw thread at of the A-tube and'the female thread b in the breech-piece, the clearance in the radial direction remaining even after the assembling operation is completed. The A-tube is cut, both in front and in rear of the thread a with annular groves a for the reception of a ring C made of a comparatively soft material, brass, for instance. The external cylindrical surfaces 0 of the rings C are intended to bear against cylindrical surfaces 1) prepared in the breech-piece B- Conical wedges D are driven into recesses the walls of which lie on the front end face of the breech-piece and, on the other hand, on the rear face of a collar a formed on the A-tube, the wedlges D being secured in position by a ring fixed over the collar a The operation of screwing the breech piece on the A-tube is performed, with great ease, owing to the clearance existingin the screw connection a 6 When the operation is nearing its end, the surfaces 0 of the rings C bear against the surfaces 6 of the breech-piece B, so-as to accurately center the A-tube within the breech-piece. On the screwing operation being completed, the recesses for the wedges D are bored, the wedges driven in and secured by means of the ring E. Owing to the action of the wedges, the screw threads a b are made to bear against each other in the axial direction with so great a pressure as to insure a rigid connection between the breech-piece and the A-tube. The clearance existing in the radial direction between the threads (1 6 remains and is not lost even when the A-tube expands on firing. The pressure then set up is supported by the surfaces 0 6 so that gripping of the screw thread is prevented. Neither can gripping occur on the bearing surfaces 0 5 since the rings C are made of softer material than the A-tube and breech-piece, and are flattened out by excessive pressure. In case of need, therefore, the wedges D having previously been removed, the breech-piece can be unscrewed from the A-tube by a slight effort and without injury to one of the parts.
Claims.
1. A gun barrel and breech-piece screwthreadedly united, said union being formed so as to provide a radial clearance between the parts, said gun barrel and breech-piece being formed with bearing surfaces on both sides of said screw-threads,'said surfaces being curved concentrically to the bore axis of the gun barrel and cooperating to maintain said radial clearance when the parts are screwed together.
2. A union for a gun barrel and breechpiece characterized by the provision of screw-threads on the 11 barrel, cooperating screw-threads on th: breech-piece, said screw-threads being so formed as to allow a clearance radially between the screwthreads of the gun barrel and breech-piece, said breech-piece being provided with cylindrical bearing surfaces, rings of comparatively soft material secured to said gun barrel and contacting said cylindrical bearing surfaces, to maintain said radial clearance.
3. An arrangement for connecting a gun barrel and breech-piece comprising screwthreads formed upon the gun barrel, cooperating screw-threads formed upon the breechand breech-piece for closing the axial clearpiece, said screw-threads being so formed as ance between said cocperating screw-threads. 1 to provide a clearance axially and radially The foregoing specification signed at Es- When the breech-piece is connected to the sen, Germany, this 24th day of June, 1920.
gun barrel, means disposed between said JOHN 'VOLLMER. breech-piece and gun barrel for maintaining In the presence ofsaid radial clearance and Wedges inserted HANS GOTTSMANN,
between abutting faces of said gun barrel JOHANN DEOKERS.
US428087A 1917-05-19 1920-12-03 Gun-barrel with a. breech-piece screwed on an a-tube Expired - Lifetime US1393057A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE1917302547D DE302547C (en) 1917-05-19 1917-05-19
GB17888/20A GB145643A (en) 1917-05-19 1920-06-30 Improvements in ordnance
FR525551A FR525551A (en) 1917-05-19 1920-10-04 Fire muzzle with cylinder head screwed onto the soul tube
NL16720A NL11234C (en) 1917-05-19 1920-10-04
US428087A US1393057A (en) 1917-05-19 1920-12-03 Gun-barrel with a. breech-piece screwed on an a-tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE302547T 1917-05-19
US428087A US1393057A (en) 1917-05-19 1920-12-03 Gun-barrel with a. breech-piece screwed on an a-tube

Publications (1)

Publication Number Publication Date
US1393057A true US1393057A (en) 1921-10-11

Family

ID=23697494

Family Applications (1)

Application Number Title Priority Date Filing Date
US428087A Expired - Lifetime US1393057A (en) 1917-05-19 1920-12-03 Gun-barrel with a. breech-piece screwed on an a-tube

Country Status (5)

Country Link
US (1) US1393057A (en)
DE (1) DE302547C (en)
FR (1) FR525551A (en)
GB (1) GB145643A (en)
NL (1) NL11234C (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611174A (en) * 1946-04-02 1952-09-23 George H Cote Rotatable stop
US2963101A (en) * 1957-04-01 1960-12-06 Koppl Ernest Joint construction and jarring tool
US3079180A (en) * 1958-04-04 1963-02-26 Gilbert T Lyon Tubular coupling having a metallic sealing ring
US3079931A (en) * 1960-09-13 1963-03-05 S M Frank & Co Inc Sealing and alignment device for smokers' pipe stems
US3834053A (en) * 1972-07-21 1974-09-10 Sauer & Sohn Gmbh J Methods and apparatus for detachably assembling the barrel of a firearm
US4154466A (en) * 1977-01-03 1979-05-15 Centron Corporation Pipe section and coupling
USRE31123E (en) * 1977-01-03 1983-01-11 Centron Corporation Pipe section and coupling
US4548431A (en) * 1981-12-17 1985-10-22 Hughes Tool Company - Usa Tool joint with internal/external make-up shoulders
US4767310A (en) * 1986-03-27 1988-08-30 Hoechst Aktiengesellschaft Blow mandrel for extrusion blow molding with agressive blow media
US5127679A (en) * 1990-02-05 1992-07-07 Simmons S.A. Fluid-tight connector for fluid-conveying pipe-lines
US5410834A (en) * 1993-08-05 1995-05-02 Michael Edward Benton Rifle with interchangeable barrel
US5546973A (en) * 1994-06-03 1996-08-20 Balon Corporation Threaded valve with safety joint
US6571676B1 (en) * 2000-12-04 2003-06-03 Lawrence R. Folsom Compact artillery
US7076904B1 (en) * 2002-06-06 2006-07-18 Rustick Joseph M Detachable gun barrel assembly
US20100059032A1 (en) * 2007-01-09 2010-03-11 Zadra Lawrence J Interchangeable gun barrel apparatus and methods
JP2010060273A (en) * 2008-08-28 2010-03-18 Browning Internatl Sa Exchangeable choke for fire arm with smooth gun barrel
US20110005376A1 (en) * 2009-07-07 2011-01-13 Rheinmetall Waffe Munition Gmbh Tube weapon
US20120090588A1 (en) * 2010-10-14 2012-04-19 Jeffrey Chen Initial velocity accelerating tube
US20120100237A1 (en) * 2008-10-02 2012-04-26 Kevin Folger Quick-change system for stretching rods
US20130106102A1 (en) * 2010-07-07 2013-05-02 National Oilwell Varco, L.P. Torque enhanced threaded connection
US20150096764A1 (en) * 2013-10-03 2015-04-09 Nabors Industries, Inc. Interlock pipe connection
US20170343309A1 (en) * 2014-02-10 2017-11-30 Franklin Armory Holdings, Inc. Semi-automatic rimfire rifle
US11846479B2 (en) 2016-02-18 2023-12-19 Ronald Andrew Foster Firearms and components thereof featuring enhanced bolt lug shapes

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611174A (en) * 1946-04-02 1952-09-23 George H Cote Rotatable stop
US2963101A (en) * 1957-04-01 1960-12-06 Koppl Ernest Joint construction and jarring tool
US3079180A (en) * 1958-04-04 1963-02-26 Gilbert T Lyon Tubular coupling having a metallic sealing ring
US3079931A (en) * 1960-09-13 1963-03-05 S M Frank & Co Inc Sealing and alignment device for smokers' pipe stems
US3834053A (en) * 1972-07-21 1974-09-10 Sauer & Sohn Gmbh J Methods and apparatus for detachably assembling the barrel of a firearm
US4154466A (en) * 1977-01-03 1979-05-15 Centron Corporation Pipe section and coupling
USRE31123E (en) * 1977-01-03 1983-01-11 Centron Corporation Pipe section and coupling
US4548431A (en) * 1981-12-17 1985-10-22 Hughes Tool Company - Usa Tool joint with internal/external make-up shoulders
US4767310A (en) * 1986-03-27 1988-08-30 Hoechst Aktiengesellschaft Blow mandrel for extrusion blow molding with agressive blow media
US5127679A (en) * 1990-02-05 1992-07-07 Simmons S.A. Fluid-tight connector for fluid-conveying pipe-lines
US5410834A (en) * 1993-08-05 1995-05-02 Michael Edward Benton Rifle with interchangeable barrel
US5546973A (en) * 1994-06-03 1996-08-20 Balon Corporation Threaded valve with safety joint
US6571676B1 (en) * 2000-12-04 2003-06-03 Lawrence R. Folsom Compact artillery
US7076904B1 (en) * 2002-06-06 2006-07-18 Rustick Joseph M Detachable gun barrel assembly
US20100059032A1 (en) * 2007-01-09 2010-03-11 Zadra Lawrence J Interchangeable gun barrel apparatus and methods
US8714144B2 (en) * 2007-01-09 2014-05-06 Lawrence J. Zadra Interchangeable gun barrel apparatus and methods
JP2010060273A (en) * 2008-08-28 2010-03-18 Browning Internatl Sa Exchangeable choke for fire arm with smooth gun barrel
US20120100237A1 (en) * 2008-10-02 2012-04-26 Kevin Folger Quick-change system for stretching rods
US20110005376A1 (en) * 2009-07-07 2011-01-13 Rheinmetall Waffe Munition Gmbh Tube weapon
US8397616B2 (en) * 2009-07-07 2013-03-19 Rheinmentall Waffe Munition GmbH Tube weapon
US9771761B2 (en) * 2010-07-07 2017-09-26 National Oilwell Varco, L.P. Torque enhanced threaded connection
US20130106102A1 (en) * 2010-07-07 2013-05-02 National Oilwell Varco, L.P. Torque enhanced threaded connection
US8453634B2 (en) * 2010-10-14 2013-06-04 J.B. Unicorn Ltd. Initial velocity accelerating tube
US20120090588A1 (en) * 2010-10-14 2012-04-19 Jeffrey Chen Initial velocity accelerating tube
US20150096764A1 (en) * 2013-10-03 2015-04-09 Nabors Industries, Inc. Interlock pipe connection
US9695649B2 (en) * 2013-10-03 2017-07-04 Nabors Industries, Inc. Interlock pipe connection
US20170343309A1 (en) * 2014-02-10 2017-11-30 Franklin Armory Holdings, Inc. Semi-automatic rimfire rifle
US10969182B2 (en) * 2014-02-10 2021-04-06 Franklin Armory Holdings, Inc. Semi-automatic rimfire rifle
US11846479B2 (en) 2016-02-18 2023-12-19 Ronald Andrew Foster Firearms and components thereof featuring enhanced bolt lug shapes

Also Published As

Publication number Publication date
DE302547C (en) 1922-05-17
GB145643A (en) 1920-09-23
FR525551A (en) 1921-09-24
NL11234C (en) 1924-04-16

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