GB513752A - Improved process for the production of connectors intended for welding on to fire orsmoke tubes of steam boilers - Google Patents

Improved process for the production of connectors intended for welding on to fire orsmoke tubes of steam boilers

Info

Publication number
GB513752A
GB513752A GB11778/38A GB1177838A GB513752A GB 513752 A GB513752 A GB 513752A GB 11778/38 A GB11778/38 A GB 11778/38A GB 1177838 A GB1177838 A GB 1177838A GB 513752 A GB513752 A GB 513752A
Authority
GB
United Kingdom
Prior art keywords
tubes
orsmoke
fire
welding
production
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
GB11778/38A
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
Publication of GB513752A publication Critical patent/GB513752A/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

513,752. Making tube fittings. GROMUS, K. April 19, 1938, No. 11778. Convention date, April 17, 1937. [Classes 83 (ii) and 83 (iv)] Cupping.-Connectors for attaching tubes to smoke boxes are shown in section in Fig. 1 and are formed by first axially pressing a tube 1, Fig. 2 into a ring shaped die 2,-and subsequently forcing it out, heating it, and forcing a shaped mandrel into it. Thereafter the grooves are turned in the conical surface.
GB11778/38A 1937-04-17 1938-04-19 Improved process for the production of connectors intended for welding on to fire orsmoke tubes of steam boilers Expired GB513752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE513752X 1937-04-17

Publications (1)

Publication Number Publication Date
GB513752A true GB513752A (en) 1939-10-20

Family

ID=6548496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11778/38A Expired GB513752A (en) 1937-04-17 1938-04-19 Improved process for the production of connectors intended for welding on to fire orsmoke tubes of steam boilers

Country Status (1)

Country Link
GB (1) GB513752A (en)

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