GB669781A - Improvements in or relating to electric cables or other insulated electric conductors - Google Patents

Improvements in or relating to electric cables or other insulated electric conductors

Info

Publication number
GB669781A
GB669781A GB21637/49A GB2163749A GB669781A GB 669781 A GB669781 A GB 669781A GB 21637/49 A GB21637/49 A GB 21637/49A GB 2163749 A GB2163749 A GB 2163749A GB 669781 A GB669781 A GB 669781A
Authority
GB
United Kingdom
Prior art keywords
ram
sheath
contact
powder
during
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
GB21637/49A
Inventor
George Donald Clothier
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.)
Pyrotenax Ltd
Original Assignee
Pyrotenax 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 Pyrotenax Ltd filed Critical Pyrotenax Ltd
Priority to GB21637/49A priority Critical patent/GB669781A/en
Priority to US179990A priority patent/US2738910A/en
Priority to FR1024001D priority patent/FR1024001A/en
Publication of GB669781A publication Critical patent/GB669781A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/16—Rigid-tube cables

Landscapes

  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

669,781. Cable-making machines. PYROTENAX, Ltd. Aug. 4, 1950 [Aug. 19, 1949], No. 21637/49. Class 36. An apparatus for the manufacture of an electric cable of the type in which a metal sheath is separated from one or more conducting cores by pulverulent insulating material comprises means for feeding powdered insulating material to the interior of a sheath tube, a ram within the sheath tube, means for imparting relative longitudinal movement to the ram and the sheath tube so that the ram is moved into contact with the powder within the sheath, and a percussion device for subjecting the ram or the sheath to one or more longitudinal blows during the period it is in contact with the powder. The apparatus described in Specifications 669,779 and 669,780 is provided with a percussion device such as a pneumatic hammer L which is connected to the base of the ram-driving device E. Striker L<SP>3</SP> acts on the upper end of ram F through shock absorbers F<SP>4</SP>. Spring L<SP>4</SP> between the hammer L and ram F holds the two apart during the main reciprocating movement of the ram but yields when the ram comes into contact with the powder in the sheath, thus causing the striker L<SP>3</SP> to impart blows to the ram during the period of contact.
GB21637/49A 1949-08-19 1949-08-19 Improvements in or relating to electric cables or other insulated electric conductors Expired GB669781A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB21637/49A GB669781A (en) 1949-08-19 1949-08-19 Improvements in or relating to electric cables or other insulated electric conductors
US179990A US2738910A (en) 1949-08-19 1950-08-17 Electric cables or other insulated electric conductors
FR1024001D FR1024001A (en) 1949-08-19 1950-08-19 Improvements to electric cables or other insulated electric conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21637/49A GB669781A (en) 1949-08-19 1949-08-19 Improvements in or relating to electric cables or other insulated electric conductors

Publications (1)

Publication Number Publication Date
GB669781A true GB669781A (en) 1952-04-09

Family

ID=10166288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21637/49A Expired GB669781A (en) 1949-08-19 1949-08-19 Improvements in or relating to electric cables or other insulated electric conductors

Country Status (3)

Country Link
US (1) US2738910A (en)
FR (1) FR1024001A (en)
GB (1) GB669781A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530518A (en) * 1953-07-29
GB828300A (en) * 1956-03-12 1960-02-17 Pyrotenax Ltd Improvements in or relating to the manufacture of electric cables or other insulated electric conductors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1547336A (en) * 1921-08-13 1925-07-28 Cutler Hammer Mfg Co Filling machine
US1897612A (en) * 1930-05-06 1933-02-14 Burgess Battery Co Tamping machine
US2033735A (en) * 1933-07-13 1936-03-10 Tennesscc Eastman Corp Molding apparatus
DE660768C (en) * 1933-11-15 1938-06-02 Siemens Schuckertwerke Akt Ges Device for the production of electrical tubular heating elements
US2277321A (en) * 1938-06-09 1942-03-24 Moses A Harris Electric mechanical packer
US2445035A (en) * 1944-01-20 1948-07-13 Munger Howard Brandeberry Method of and machine for packing powder for spark plugs

Also Published As

Publication number Publication date
FR1024001A (en) 1953-03-26
US2738910A (en) 1956-03-20

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