GB473252A - Method of manufacturing conical tubes - Google Patents

Method of manufacturing conical tubes

Info

Publication number
GB473252A
GB473252A GB11870/37A GB1187037A GB473252A GB 473252 A GB473252 A GB 473252A GB 11870/37 A GB11870/37 A GB 11870/37A GB 1187037 A GB1187037 A GB 1187037A GB 473252 A GB473252 A GB 473252A
Authority
GB
United Kingdom
Prior art keywords
conical tubes
tube
tubes
conical
manufacturing conical
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
GB11870/37A
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.)
DEUTSCHE ROEHRENWERKE AG
Original Assignee
DEUTSCHE ROEHRENWERKE 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 DEUTSCHE ROEHRENWERKE AG filed Critical DEUTSCHE ROEHRENWERKE AG
Publication of GB473252A publication Critical patent/GB473252A/en
Expired 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
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B21C37/18—Making tubes with varying diameter in longitudinal direction conical tubes

Abstract

473,252. Making tubes. DEUTSCHE ROHRENWERKE AKT.-GES. April 26, 1937, No. 11870. Convention date, July 25, 1936. [Classes 83 (ii) and 83 (iv)] Drawing.-In the manufacture of conical tubes, the tube is prepared with sectional reductions a to serve as a partly prepared blank, and is then drawn through rollers f having conical pass grooves which are rotated in synchronism. The driving may be started at the thin end or the thick end of the tube a. The conversion may be effected in a single pass.
GB11870/37A 1936-07-25 1937-04-26 Method of manufacturing conical tubes Expired GB473252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE473252X 1936-07-25

Publications (1)

Publication Number Publication Date
GB473252A true GB473252A (en) 1937-10-08

Family

ID=6541540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11870/37A Expired GB473252A (en) 1936-07-25 1937-04-26 Method of manufacturing conical tubes

Country Status (1)

Country Link
GB (1) GB473252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370978A2 (en) * 1988-11-23 1990-05-30 Sandvik Special Metals Corp. Constant wall shaft with reinforced tip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370978A2 (en) * 1988-11-23 1990-05-30 Sandvik Special Metals Corp. Constant wall shaft with reinforced tip
EP0370978A3 (en) * 1988-11-23 1991-01-16 Sandvik Special Metals Corp. Constant wall shaft with reinforced tip

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