GB272500A - Improvements in and relating to methods of and apparatus for treating filaments for electric incandescent lamps or the like - Google Patents

Improvements in and relating to methods of and apparatus for treating filaments for electric incandescent lamps or the like

Info

Publication number
GB272500A
GB272500A GB15121/27A GB1512127A GB272500A GB 272500 A GB272500 A GB 272500A GB 15121/27 A GB15121/27 A GB 15121/27A GB 1512127 A GB1512127 A GB 1512127A GB 272500 A GB272500 A GB 272500A
Authority
GB
United Kingdom
Prior art keywords
filaments
chamber
relating
methods
coating
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
GB15121/27A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB272500A publication Critical patent/GB272500A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering

Landscapes

  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)
GB15121/27A 1926-06-09 1927-06-07 Improvements in and relating to methods of and apparatus for treating filaments for electric incandescent lamps or the like Expired GB272500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US114808A US1655466A (en) 1926-06-09 1926-06-09 Method and apparatus for treating filaments

Publications (1)

Publication Number Publication Date
GB272500A true GB272500A (en) 1927-08-04

Family

ID=22357547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15121/27A Expired GB272500A (en) 1926-06-09 1927-06-07 Improvements in and relating to methods of and apparatus for treating filaments for electric incandescent lamps or the like

Country Status (5)

Country Link
US (1) US1655466A (https=)
BE (1) BE342791A (https=)
DE (1) DE452708C (https=)
FR (1) FR639785A (https=)
GB (1) GB272500A (https=)

Also Published As

Publication number Publication date
US1655466A (en) 1928-01-10
BE342791A (https=)
FR639785A (fr) 1928-06-29
DE452708C (de) 1927-11-17

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