GB1252018A - - Google Patents

Info

Publication number
GB1252018A
GB1252018A GB1252018DA GB1252018A GB 1252018 A GB1252018 A GB 1252018A GB 1252018D A GB1252018D A GB 1252018DA GB 1252018 A GB1252018 A GB 1252018A
Authority
GB
United Kingdom
Prior art keywords
mandrel
die
plate
tube
dies
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
Application number
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 claimed from JP756868A external-priority patent/JPS4914066B1/ja
Application filed filed Critical
Publication of GB1252018A publication Critical patent/GB1252018A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/16Making tubes with varying diameter in longitudinal direction
    • B21C37/18Making tubes with varying diameter in longitudinal direction conical tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1,252,018. Making musical instruments; drawing. NIPPON GAKKI SEIZO K.K. 20 Jan., 1969 [8 Feb., 1968; 15 May, 1968 (2)], No. 3171/69. Headings B3A, B3P and B3Q. A method of making tapered metal tubes 14, Fig. 1, e.g. for wind musical instruments, comprises placing a tubular blank on a tapered mandrel 1 and moving the mandrel relatively to a plate-die 8 to form the blank about the mandrel, the material and physical proportions of the die being such that it yields as the blank is formed. The tube may be of silver or an alloy of copper and zinc, and the die of soft iron, brass, aluminium, aluminium alloy, lead or polyurethane. Tubes of circular, polygonal or elliptical cross-section may be formed. As shown, the die is stationary and the mandrel is pulled through by a plate 6 to which it is connected by a coupling 5 or (23), Fig. 5 (not shown). The plate is traversed by a screw 19, Fig. 6, moved by a nut 20 which is driven, through a chain and sprockets 22, by a motor 21. The drawing orifice 9 may be chamfered; after use deformed dies, Fig. 2B (not shown), are discarded but resilient polyurethane dies may be used repeatedly. The tube may be drawn in stages, using a different die and mandrel for each stage, Figs. 3 and 4 (not shown). Two dies may be used for the last stage, each forming only a part of the length of the tube. Curved tubes may be formed on a curved mandrel 1, Fig. 7, with the die 8 mounted in ball or roller bearings 27 or in a universal bearing, Fig. 10 (not shown), in a stationary plate. The mandrel 1 may be attached to the moving plate by a yoke 36, Fig. 8, engaging a groove 34 in the mandrel to prevent its withdrawal from a slot 32. In another form, Fig. 11, the tube 14 is pushed through the die 8 and a stripper is provided comprising a pair of plates on a pivot 41 and closed about the mandrel by springs 40.
GB1252018D 1968-02-08 1969-01-20 Expired GB1252018A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP756868A JPS4914066B1 (en) 1968-02-08 1968-02-08
JP3243268 1968-05-15
JP3958968 1968-05-15

Publications (1)

Publication Number Publication Date
GB1252018A true GB1252018A (en) 1971-11-03

Family

ID=27277659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252018D Expired GB1252018A (en) 1968-02-08 1969-01-20

Country Status (4)

Country Link
US (1) US3602030A (en)
DE (1) DE1900741C3 (en)
FR (1) FR1591423A (en)
GB (1) GB1252018A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155378A (en) * 1984-03-02 1985-09-25 Toyo Seikan Kaisha Ltd Ironing apparatus

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807213A (en) * 1971-10-28 1974-04-30 Aluminum Co Of America Method of making a hollow metal bat
EP0060820B2 (en) * 1981-03-13 1989-10-18 Santrade Ltd. Method and apparatus for production of tubes
IT1160132B (en) * 1983-12-14 1987-03-04 Tubi Italia Spa PROCEDURE FOR THE PREPARATION OF TUBULAR MACHINES INTENDED FOR PLANTS FOR CONTINUOUS STEEL CASTING
DE3603846A1 (en) * 1986-02-07 1987-08-20 Krupp Corpoplast Masch METHOD FOR PRODUCING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC
DE3603843A1 (en) * 1986-02-07 1987-08-20 Krupp Corpoplast Masch METHOD AND DEVICE FOR PRODUCING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC
US7059365B2 (en) * 1999-12-03 2006-06-13 Shelby Enterprises, Inc. Fuel tank filler neck and method of manufacturing same
US6588459B2 (en) * 1999-12-03 2003-07-08 Shelby Enterprises, Inc. Fuel tank filler neck and method of manufacturing same
US6330893B1 (en) 1999-12-03 2001-12-18 Shelby Enterprises, Inc. Fuel tank filter neck and method of manufacturing same
JP2002192250A (en) * 2000-12-28 2002-07-10 Inst Of Physical & Chemical Res Mold for ironing
US7048019B2 (en) * 2003-09-30 2006-05-23 Shelby Enterprises, Inc. Fuel filler tube assembly and manufacturing method
US6886582B2 (en) * 2003-10-06 2005-05-03 Young Ill Choi Spare fuel tank in a fuel tank of a vehicle
WO2015188101A1 (en) * 2014-06-06 2015-12-10 Bly Ip Inc. Inner tube assembly with tapered inner wall and systems and methods for using and making same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US616357A (en) * 1898-12-20 Alfred mil ward reynolds and john thomas hewitt
US252423A (en) * 1882-01-17 Edwin b
US717178A (en) * 1902-10-14 1902-12-30 John Earle Manufacture of curved tubes, pipe-coils, or the like.
US1163062A (en) * 1914-03-24 1915-12-07 Tri Prong Hair Pin Co Wire-drawing die.
US1534698A (en) * 1922-11-03 1925-04-21 Gansert Fred Method of and apparatus for making paper-box caps
US1962469A (en) * 1931-06-01 1934-06-12 Taylor Forge & Pipe Works Method of making pipe bends
US2560822A (en) * 1945-11-08 1951-07-17 Walton S Robinson Means and method for making seamless pipe elbows
US3167044A (en) * 1958-04-14 1965-01-26 Kaiser Aluminium Chem Corp Forming apparatus
US3243985A (en) * 1964-09-28 1966-04-05 Atomic Energy Authority Uk Extrusion apparatus
US3327513A (en) * 1965-02-12 1967-06-27 John W Hinshaw Method and apparatus for working metal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155378A (en) * 1984-03-02 1985-09-25 Toyo Seikan Kaisha Ltd Ironing apparatus

Also Published As

Publication number Publication date
DE1900741A1 (en) 1969-09-04
US3602030A (en) 1971-08-31
FR1591423A (en) 1970-04-27
DE1900741B2 (en) 1974-11-21
DE1900741C3 (en) 1975-07-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee