GB363574A - Method of making circumferential corrugations on hollow metal spools - Google Patents

Method of making circumferential corrugations on hollow metal spools

Info

Publication number
GB363574A
GB363574A GB878231A GB878231A GB363574A GB 363574 A GB363574 A GB 363574A GB 878231 A GB878231 A GB 878231A GB 878231 A GB878231 A GB 878231A GB 363574 A GB363574 A GB 363574A
Authority
GB
United Kingdom
Prior art keywords
recess
corrugations
corrugation
die
hollow metal
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
GB878231A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB878231A priority Critical patent/GB363574A/en
Publication of GB363574A publication Critical patent/GB363574A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B21D15/04—Corrugating tubes transversely, e.g. helically
    • B21D15/06—Corrugating tubes transversely, e.g. helically annularly

Abstract

363,574. Making tubes. HARDMEYER, R., Kunsnacht, near Z³rich, Switzerland. March 21, 1931, No. 8782. [Classes 83 (ii) and 83 (iv).] Corrugating.-Corrugations are formed between dies, one by one, on the enlarged end portion of cop tubes by exerting axial pressure, the corrugations already formed being supported by a core. The first corrugation is formed between a die 3 having a recess to seat the shouldered portion of the work, and a recess 16 co-operating with a recess 15 in a die 7 into which the metal expands, preferably with a thickening of the wall. A mandrel 8 is carried within the tube during the operation. The corrugation so formed is then supported between a block 3<1> and an annular member 4, the latter having a recess co-operating with the recess 15 in the die member 7<1> to form the second corrugation. A three-section mandrel 9 is expanded to support the tube by a member 10 before the operation. Successive corrugations are formed by suitably modified supporting members and mandrels.
GB878231A 1931-03-21 1931-03-21 Method of making circumferential corrugations on hollow metal spools Expired GB363574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB878231A GB363574A (en) 1931-03-21 1931-03-21 Method of making circumferential corrugations on hollow metal spools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878231A GB363574A (en) 1931-03-21 1931-03-21 Method of making circumferential corrugations on hollow metal spools

Publications (1)

Publication Number Publication Date
GB363574A true GB363574A (en) 1931-12-24

Family

ID=9859159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB878231A Expired GB363574A (en) 1931-03-21 1931-03-21 Method of making circumferential corrugations on hollow metal spools

Country Status (1)

Country Link
GB (1) GB363574A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434905A (en) * 1944-07-08 1948-01-27 Harry M Burt Method of fabricating contacts for fluorescent starter switches
US3263476A (en) * 1961-08-21 1966-08-02 Price Pfister Brass Mfg Metal forming process for shaping ends of tubes and the product thereof
US3838592A (en) * 1972-02-02 1974-10-01 Btr Industries Ltd Hose end fittings and inserts therefor
US4732030A (en) * 1986-06-17 1988-03-22 Takeru Tanaka Method of manufacturing gear-shift lever and the lever constitution
EP0623404A2 (en) * 1993-04-26 1994-11-09 Robert Bosch Gmbh Pipe, pipe connector, method for their manufacture and device for holding pipes
US5487294A (en) * 1992-12-24 1996-01-30 Bend All Manufacturing Inc. System for forming end flanges on pipes
US5582054A (en) * 1993-11-26 1996-12-10 Nippondenso Co., Ltd. Method of producing bulge-shaped pipe
US20230099771A1 (en) * 2021-09-27 2023-03-30 Futaba Industrial Co., Ltd. Method for forming spool in pipe and manufacturing apparatus for forming spool in pipe

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434905A (en) * 1944-07-08 1948-01-27 Harry M Burt Method of fabricating contacts for fluorescent starter switches
US3263476A (en) * 1961-08-21 1966-08-02 Price Pfister Brass Mfg Metal forming process for shaping ends of tubes and the product thereof
US3838592A (en) * 1972-02-02 1974-10-01 Btr Industries Ltd Hose end fittings and inserts therefor
US4732030A (en) * 1986-06-17 1988-03-22 Takeru Tanaka Method of manufacturing gear-shift lever and the lever constitution
US5487294A (en) * 1992-12-24 1996-01-30 Bend All Manufacturing Inc. System for forming end flanges on pipes
EP0623404A2 (en) * 1993-04-26 1994-11-09 Robert Bosch Gmbh Pipe, pipe connector, method for their manufacture and device for holding pipes
EP0623404A3 (en) * 1993-04-26 1995-03-22 Bosch Gmbh Robert Pipe, pipe connector, method for their manufacture and device for holding pipes.
US5582054A (en) * 1993-11-26 1996-12-10 Nippondenso Co., Ltd. Method of producing bulge-shaped pipe
DE4441300B4 (en) * 1993-11-26 2005-06-16 Denso Corp., Kariya Process for producing a bulbous tube
US20230099771A1 (en) * 2021-09-27 2023-03-30 Futaba Industrial Co., Ltd. Method for forming spool in pipe and manufacturing apparatus for forming spool in pipe
US11904372B2 (en) * 2021-09-27 2024-02-20 Futaba Industrial Co., Ltd. Method for forming spool in pipe and manufacturing apparatus for forming spool in pipe

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