GB663992A - Improvements relating to electric pilot lamp units - Google Patents

Improvements relating to electric pilot lamp units

Info

Publication number
GB663992A
GB663992A GB21270/49A GB2127049A GB663992A GB 663992 A GB663992 A GB 663992A GB 21270/49 A GB21270/49 A GB 21270/49A GB 2127049 A GB2127049 A GB 2127049A GB 663992 A GB663992 A GB 663992A
Authority
GB
United Kingdom
Prior art keywords
holder
pilot lamp
spindle
improvements relating
lamp units
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
GB21270/49A
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.)
RENFREW ELECTRIC AND REFRIGERA
Original Assignee
RENFREW ELECTRIC AND REFRIGERA
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 RENFREW ELECTRIC AND REFRIGERA filed Critical RENFREW ELECTRIC AND REFRIGERA
Publication of GB663992A publication Critical patent/GB663992A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
    • H01H9/162—Means to facilitate removal or replacement of light-emitting elements

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)

Abstract

663,992. Indicators for switches. RENFREW ELECTRIC & REFRIGERATOR CO. Ltd. Aug. 16, 1949. [June 21, 1949] No. 21270/49. Class 38 (v). Also in Group XXXVI] In a rotary switch 18, preferably of the kind described in Specification 607,461, the spindle 17 is provided with a lamp-holder 19 at the bottom of which are positioned resilient coilspring contacts 26, 27 of which the helices engage the 'projecting terminals 39, 40 of a pilot lamp 16. The contacts 26, 27 are separated by an insulating member 32 retained in the holder by a washer 36 forced therein. A metal sleeve 20 is secured over the holder to support an operating knob 23 and the sleeve has apertures 44 which receive projections 43 on a slotted transparent hood 41 hereby retaining it on the spindle and within the knob.
GB21270/49A 1949-06-21 1949-08-16 Improvements relating to electric pilot lamp units Expired GB663992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA663992X 1949-06-21

Publications (1)

Publication Number Publication Date
GB663992A true GB663992A (en) 1951-01-02

Family

ID=4172114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21270/49A Expired GB663992A (en) 1949-06-21 1949-08-16 Improvements relating to electric pilot lamp units

Country Status (1)

Country Link
GB (1) GB663992A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057652B (en) * 1954-08-28 1959-05-21 Deutsche Telephonwerk Kabel Illuminated button with set of contact springs parallel to the lamp for telephone table stations
DE1069742B (en) * 1959-11-26
DE1098570B (en) * 1956-10-11 1961-02-02 Hermann Kiefner Illuminated button for communication purposes
DE3542086A1 (en) * 1985-11-28 1987-06-04 Berker Geb Switch construction for a switch, especially a built-in apparatus switch
GB2259193A (en) * 1991-03-16 1993-03-03 Britax Vega Ltd Spring contact

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069742B (en) * 1959-11-26
DE1057652B (en) * 1954-08-28 1959-05-21 Deutsche Telephonwerk Kabel Illuminated button with set of contact springs parallel to the lamp for telephone table stations
DE1098570B (en) * 1956-10-11 1961-02-02 Hermann Kiefner Illuminated button for communication purposes
DE3542086A1 (en) * 1985-11-28 1987-06-04 Berker Geb Switch construction for a switch, especially a built-in apparatus switch
GB2259193A (en) * 1991-03-16 1993-03-03 Britax Vega Ltd Spring contact

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