GB850056A - Improvements in or relating to electric indicator lamps of the plug-in type - Google Patents

Improvements in or relating to electric indicator lamps of the plug-in type

Info

Publication number
GB850056A
GB850056A GB2965457A GB2965457A GB850056A GB 850056 A GB850056 A GB 850056A GB 2965457 A GB2965457 A GB 2965457A GB 2965457 A GB2965457 A GB 2965457A GB 850056 A GB850056 A GB 850056A
Authority
GB
United Kingdom
Prior art keywords
envelope
plates
base member
plug
type
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
GB2965457A
Inventor
James William Butler
Kenneth John Bidston
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2965457A priority Critical patent/GB850056A/en
Publication of GB850056A publication Critical patent/GB850056A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/44—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp directly applied to, or forming part of, the vessel

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

850,056. Lamp caps. GENERAL ELECTRIC CO. Ltd. Sept. 8, 1958 [Sept. 20, 1957], No. 29654/57. Class 38 (1) In an electric indicator lamp of the plug-in type having metal contact plates 6, 7 lying on diametrically opposite sides of a tubular glass envelope 1 and a base member 10, of insulating material attached to envelope 1, the contact plates, which are shaped to the curvature of the envelope, extend beyond it to lie along the base member 10 and are fixed to both these parts by an adhesive such as Paralac thus avoiding the need for member 10 to be secured to envelope 1 by capping cement. The projecting ends 8, 9 of the plates, to which wires 3, 4, leading to tungsten filament 2, are soldered, fit along seatings and engage abutments 12, 13 in base member 10 which has a wedge 11 for guiding the plates into engagement with the socket contacts. After assembling, the base end of the assembly is coated, by dipping, with an insulating varnish such as Paralac.
GB2965457A 1957-09-20 1957-09-20 Improvements in or relating to electric indicator lamps of the plug-in type Expired GB850056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2965457A GB850056A (en) 1957-09-20 1957-09-20 Improvements in or relating to electric indicator lamps of the plug-in type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2965457A GB850056A (en) 1957-09-20 1957-09-20 Improvements in or relating to electric indicator lamps of the plug-in type

Publications (1)

Publication Number Publication Date
GB850056A true GB850056A (en) 1960-09-28

Family

ID=10294999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2965457A Expired GB850056A (en) 1957-09-20 1957-09-20 Improvements in or relating to electric indicator lamps of the plug-in type

Country Status (1)

Country Link
GB (1) GB850056A (en)

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