FR2292530A1 - Mfr. of double barrels for firearms - entails welding together oversize tubes treating and drawing to size - Google Patents

Mfr. of double barrels for firearms - entails welding together oversize tubes treating and drawing to size

Info

Publication number
FR2292530A1
FR2292530A1 FR7438832A FR7438832A FR2292530A1 FR 2292530 A1 FR2292530 A1 FR 2292530A1 FR 7438832 A FR7438832 A FR 7438832A FR 7438832 A FR7438832 A FR 7438832A FR 2292530 A1 FR2292530 A1 FR 2292530A1
Authority
FR
France
Prior art keywords
tubes
firearms
oversize
mfr
treating
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.)
Granted
Application number
FR7438832A
Other languages
French (fr)
Other versions
FR2292530B1 (en
Inventor
Henri Filanovitch
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.)
TUBES CIE INDLE ET CALE
Original Assignee
TUBES CIE INDLE ET CALE
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 TUBES CIE INDLE ET CALE filed Critical TUBES CIE INDLE ET CALE
Priority to FR7438832A priority Critical patent/FR2292530A1/en
Publication of FR2292530A1 publication Critical patent/FR2292530A1/en
Application granted granted Critical
Publication of FR2292530B1 publication Critical patent/FR2292530B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/151—Making tubes with multiple passages
    • 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
    • F41A21/06—Plural barrels

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Earth Drilling (AREA)

Abstract

The process for the fabrication of double barrels for firearms, entails the welding together of oversize tubes followed by treatment and drawing to the required size. The two tubes initially joined have bores and outer diameters which are resp. lesser and greater than the finished product and material similar to that constituting the the tubes is pref. used in the welding operation. Prior to welding, the tubes are cut to equal lengths, and prior to the simultaneous drawing operating tangs are formed on each tube followed by the subjection of the assembly to tempering and suitable surface treatment. After drawing the product is cut to a desired length.
FR7438832A 1974-11-27 1974-11-27 Mfr. of double barrels for firearms - entails welding together oversize tubes treating and drawing to size Granted FR2292530A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7438832A FR2292530A1 (en) 1974-11-27 1974-11-27 Mfr. of double barrels for firearms - entails welding together oversize tubes treating and drawing to size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438832A FR2292530A1 (en) 1974-11-27 1974-11-27 Mfr. of double barrels for firearms - entails welding together oversize tubes treating and drawing to size

Publications (2)

Publication Number Publication Date
FR2292530A1 true FR2292530A1 (en) 1976-06-25
FR2292530B1 FR2292530B1 (en) 1977-03-25

Family

ID=9145287

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438832A Granted FR2292530A1 (en) 1974-11-27 1974-11-27 Mfr. of double barrels for firearms - entails welding together oversize tubes treating and drawing to size

Country Status (1)

Country Link
FR (1) FR2292530A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022553432A (en) * 2019-12-14 2022-12-22 エンジニアリング テクノロジーズ アンド マニファクチュアリング リミテッド Method for manufacturing gun barrel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041719A (en) * 1959-05-05 1962-07-03 Engelhard Ind Inc Method of making a composite tube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041719A (en) * 1959-05-05 1962-07-03 Engelhard Ind Inc Method of making a composite tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022553432A (en) * 2019-12-14 2022-12-22 エンジニアリング テクノロジーズ アンド マニファクチュアリング リミテッド Method for manufacturing gun barrel
US11808539B2 (en) 2019-12-14 2023-11-07 Engineering Technologies & Manufacturing Ltd. Method for manufacturing gun barrels

Also Published As

Publication number Publication date
FR2292530B1 (en) 1977-03-25

Similar Documents

Publication Publication Date Title
NL7010575A (en)
US2708649A (en) Method and apparatus for dielectric projection bonding of wood materials
CA933457A (en) Method and machine for spirally corrugating tubes
CA970657A (en) Apparatus and method for sizing, straightening and peeling elongated workpieces
FR2292530A1 (en) Mfr. of double barrels for firearms - entails welding together oversize tubes treating and drawing to size
CA997256A (en) Method for producing high toughness and high tensile strength steels
ES445566A1 (en) Pipe bell end having a thickened portion and apparatus for forming the bell end
YU287271A (en) Device for straightening workpieces, e.g. bars and tubes, mandrel for manufacturing tubes of round cross-section
GB927980A (en) Method and means for manufacturing pipes from continuous material in the form of bands or strips
GB794907A (en) Methods and apparatus for forming composite hollow articles
US3280708A (en) Method of forming fibre container bodies
ZA72724B (en) Reinforced high pressure hose,apparatus and method for producing same
FR2035872A1 (en) Cold forming metal ribbon
FR2050311A1 (en) Process and machine for forming tubular - articles
US2286045A (en) Method of making tubes of pyroxylin material or the like
SU273029A1 (en) Method for making welded closed sections
IL43220A0 (en) Method and apparatus for producing veneer tubes
JPS57146426A (en) Manufacture of bellows
FR2138315A1 (en) Consumable wire for arc welding - fed in non-straight pattern
AT283836B (en) Process for the production of curved envelopes in the form of a cylindrical ring (torus) with a seam on its inner side, in particular those for enveloping the bends of insulated pipes
ES2065965T3 (en) PROCEDURE FOR CONTINUOUS STRETCHING OF METAL TUBES.
DE2524138A1 (en) Cylindrical end closed vessel produced seamlessly - by axial and radial pressure on drawn tube of material difficult to deform
NL7118193A (en) Helically ribbed plastic tube prodn - by compressing formed fibs between pairs of rollers arranged along tube transport di
FR2339720A1 (en) Metal tank manufacturing system - includes weld flat plates together and passing through curved guides to form rings
FR2130678A1 (en) Bead welding electrodes - for conservecans, treatment ensures uniform weld beads

Legal Events

Date Code Title Description
ST Notification of lapse
TP Transmission of property