GB770817A - Improvements in or relating to electric discharge devices - Google Patents

Improvements in or relating to electric discharge devices

Info

Publication number
GB770817A
GB770817A GB1656255A GB1656255A GB770817A GB 770817 A GB770817 A GB 770817A GB 1656255 A GB1656255 A GB 1656255A GB 1656255 A GB1656255 A GB 1656255A GB 770817 A GB770817 A GB 770817A
Authority
GB
United Kingdom
Prior art keywords
rods
electric discharge
discharge devices
grid
work
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
GB1656255A
Inventor
Edgar Henry Albert Packe
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1656255A priority Critical patent/GB770817A/en
Publication of GB770817A publication Critical patent/GB770817A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture

Landscapes

  • Manufacture Of Motors, Generators (AREA)

Abstract

770,817. Making grid electrodes. STANDARD TELEPHONES & CABLES, Ltd. June 9, 1955, No. 16562/55. Class 83 (2). In a method of making grid electrodes for electric discharge devices the support rods 7, 8, Fig. 2, are work-hardened to prevent bowing. The rods may be placed over a mandrel and compressed in a toggle press or hammered by eccentric cams over the region between the mica insulations 9, 10. The rods may be workhardened before the grids 6 are wound on, or the process may be used to swage the grid wires into position during winding. When the grid has to be annealed for subsequent bending the work-hardening may be carried out after the annealing. In a modification, rods 17, Fig. 4, are flattened with tapered ends which may be wedged into the insulators 18, 19.
GB1656255A 1955-06-09 1955-06-09 Improvements in or relating to electric discharge devices Expired GB770817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1656255A GB770817A (en) 1955-06-09 1955-06-09 Improvements in or relating to electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1656255A GB770817A (en) 1955-06-09 1955-06-09 Improvements in or relating to electric discharge devices

Publications (1)

Publication Number Publication Date
GB770817A true GB770817A (en) 1957-03-27

Family

ID=10079549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1656255A Expired GB770817A (en) 1955-06-09 1955-06-09 Improvements in or relating to electric discharge devices

Country Status (1)

Country Link
GB (1) GB770817A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223879A (en) * 1960-12-12 1965-12-14 Sylvania Electric Prod Preformed and prestressed strap frame grid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223879A (en) * 1960-12-12 1965-12-14 Sylvania Electric Prod Preformed and prestressed strap frame grid

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