GB759017A - Improvements in or relating to the production of metal tubing by extrusion - Google Patents

Improvements in or relating to the production of metal tubing by extrusion

Info

Publication number
GB759017A
GB759017A GB342753A GB342753A GB759017A GB 759017 A GB759017 A GB 759017A GB 342753 A GB342753 A GB 342753A GB 342753 A GB342753 A GB 342753A GB 759017 A GB759017 A GB 759017A
Authority
GB
United Kingdom
Prior art keywords
extrusion
orifice
metal
production
lead
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
GB342753A
Inventor
Eric John Hooker
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.)
STHN UNITED TELEPHONE CABLES
Original Assignee
STHN UNITED TELEPHONE CABLES
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 STHN UNITED TELEPHONE CABLES filed Critical STHN UNITED TELEPHONE CABLES
Priority to GB342753A priority Critical patent/GB759017A/en
Publication of GB759017A publication Critical patent/GB759017A/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
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/06—Press heads, dies, or mandrels for coating work

Abstract

759,017. Extruding. SOUTHERN UNITED TELEPHONE CABLES, Ltd. Feb. 5, 1954 [Feb. 6, 1953], No. 3427/53. Class 83 (4). In the production of metal tubes 16 by the extrusion of metal through an annular extrusion orifice a<SP>1</SP>-b<SP>1</SP> formed between an inner die or mandrel 10 and an outer die 11, the latter has on the outlet side of the orifice an annular surface 13 adapted to exert a contracting action on the extruded tube so as to reduce its diameter beyond the natural contraction in diameter caused by the inward flow of the metal through the orifice. The die and mandrel may be adjusted axially relatively to each other for varying the size of the extrusion orifice. The invention is applicable to the extrusion of lead, aluminium or their alloys and in particular to the sheathing of cables with lead or lead alloy.
GB342753A 1953-02-06 1953-02-06 Improvements in or relating to the production of metal tubing by extrusion Expired GB759017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB342753A GB759017A (en) 1953-02-06 1953-02-06 Improvements in or relating to the production of metal tubing by extrusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB342753A GB759017A (en) 1953-02-06 1953-02-06 Improvements in or relating to the production of metal tubing by extrusion

Publications (1)

Publication Number Publication Date
GB759017A true GB759017A (en) 1956-10-10

Family

ID=9758135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB342753A Expired GB759017A (en) 1953-02-06 1953-02-06 Improvements in or relating to the production of metal tubing by extrusion

Country Status (1)

Country Link
GB (1) GB759017A (en)

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