GB723014A - Improvements in or relating to the manufacture of metal hollows and apparatus therefor - Google Patents

Improvements in or relating to the manufacture of metal hollows and apparatus therefor

Info

Publication number
GB723014A
GB723014A GB131452A GB131452A GB723014A GB 723014 A GB723014 A GB 723014A GB 131452 A GB131452 A GB 131452A GB 131452 A GB131452 A GB 131452A GB 723014 A GB723014 A GB 723014A
Authority
GB
United Kingdom
Prior art keywords
plug
frusto
rolls
blank
casting
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
GB131452A
Inventor
Gavin Smellie Mclay
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.)
Stewarts and Lloyds Ltd
Original Assignee
Stewarts and Lloyds Ltd
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 Stewarts and Lloyds Ltd filed Critical Stewarts and Lloyds Ltd
Priority to GB131452A priority Critical patent/GB723014A/en
Publication of GB723014A publication Critical patent/GB723014A/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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

723,014. Rolling tubes. STEWARTS & LLOYDS, Ltd. April 16, 1953 [Jan. 16, 1952], No. 1314/52. Class 83 (4). In apparatus for skew rolling tubes a conically. shaped plug 10, Fig. 8, over which the workpiece 12 is forced and which may pierce a solid work-piece is movable longitudinally between two operating positions during the rolling process. In one example the ends 25, 24, Fig. 7, of a blank are reduced in diameter by moving the plug 10 to a position 10a, Fig. 8, during formation of the ends while normal reduction of the blank is carried out with the apex of the plug opposite the forward end of the frusto-conical tapered section 17 of the rolls. In another example entry of the blank into the rolls is facilitated by initially retracting the plug 10 to a position at which its apex is opposite the, rear end of the frusto-conical section 17. The plug 10, Fig. 1, is attached by a releasable coupling 9 to a support 6 slidable on a bed 1 for removing-the work, but is normally locked in the operating position within a hollow casting 2. The casting 2 is moved by hydraulic rams 3 between two positions corresponding to the two operating positions of the plug 10, a stop 5 locating the casting 2 on the bed 1. The rolls have cylindrical or tapered portions 15, 16 on each side of the frusto-conical portions 17.
GB131452A 1952-01-16 1952-01-16 Improvements in or relating to the manufacture of metal hollows and apparatus therefor Expired GB723014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB131452A GB723014A (en) 1952-01-16 1952-01-16 Improvements in or relating to the manufacture of metal hollows and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB131452A GB723014A (en) 1952-01-16 1952-01-16 Improvements in or relating to the manufacture of metal hollows and apparatus therefor

Publications (1)

Publication Number Publication Date
GB723014A true GB723014A (en) 1955-02-02

Family

ID=9719831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB131452A Expired GB723014A (en) 1952-01-16 1952-01-16 Improvements in or relating to the manufacture of metal hollows and apparatus therefor

Country Status (1)

Country Link
GB (1) GB723014A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178353A (en) * 1985-07-12 1987-02-11 Kocks Technik Rolling seamless tubes
GB2179283A (en) * 1985-08-24 1987-03-04 Kocks Technik A method of hollow rolling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178353A (en) * 1985-07-12 1987-02-11 Kocks Technik Rolling seamless tubes
GB2179283A (en) * 1985-08-24 1987-03-04 Kocks Technik A method of hollow rolling

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