GB1398556A - Method and apparatus formanufacturing helically coiled filaments for electric lamps - Google Patents

Method and apparatus formanufacturing helically coiled filaments for electric lamps

Info

Publication number
GB1398556A
GB1398556A GB3978672A GB3978672A GB1398556A GB 1398556 A GB1398556 A GB 1398556A GB 3978672 A GB3978672 A GB 3978672A GB 3978672 A GB3978672 A GB 3978672A GB 1398556 A GB1398556 A GB 1398556A
Authority
GB
United Kingdom
Prior art keywords
wire
drum
segments
iron
conveyer
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
GB3978672A
Other languages
English (en)
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1398556A publication Critical patent/GB1398556A/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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of rods or wire
    • B21C37/045—Manufacture of wire or rods with particular section or properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
GB3978672A 1971-09-22 1972-08-25 Method and apparatus formanufacturing helically coiled filaments for electric lamps Expired GB1398556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18258171A 1971-09-22 1971-09-22

Publications (1)

Publication Number Publication Date
GB1398556A true GB1398556A (en) 1975-06-25

Family

ID=22669086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3978672A Expired GB1398556A (en) 1971-09-22 1972-08-25 Method and apparatus formanufacturing helically coiled filaments for electric lamps

Country Status (6)

Country Link
US (1) US3729787A (enExample)
JP (1) JPS5139951B2 (enExample)
CA (1) CA935357A (enExample)
DE (1) DE2246149A1 (enExample)
GB (1) GB1398556A (enExample)
NL (1) NL173219C (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822455A (en) * 1972-12-22 1974-07-09 Westinghouse Electric Corp Method of manufacturing beaded filament coils for electric lamps and similar devices
JPS50150172U (enExample) * 1974-05-29 1975-12-13
JPS5173782A (ja) * 1974-12-20 1976-06-25 Mitsubishi Electric Corp Fukushakyokeikoranpu
JPS51119186A (en) * 1975-04-09 1976-10-19 Mitsubishi Electric Corp Production method of bulbs
DE19527653A1 (de) * 1995-07-28 1997-01-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrodenwendel für Entladungslampen und Verfahren zur Herstellung einer derartigen Elektrodenwendel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE412106A (enExample) * 1934-11-08
US2359302A (en) * 1942-06-11 1944-10-03 Tung Sol Lamp Works Inc Incandescent lamp and method of manufacture
US2687489A (en) * 1952-06-26 1954-08-24 Hanovia Chemical & Mfg Co Electrode
US3110098A (en) * 1960-11-25 1963-11-12 Sylvania Electric Prod Manufacture of wire coils

Also Published As

Publication number Publication date
CA935357A (en) 1973-10-16
US3729787A (en) 1973-05-01
JPS5139951B2 (enExample) 1976-10-30
NL7212773A (enExample) 1973-03-26
JPS4849276A (enExample) 1973-07-11
NL173219B (nl) 1983-07-18
NL173219C (nl) 1983-12-16
DE2246149A1 (de) 1973-03-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee