FR732912A - Improvements to buttons for electric bells with indicator light - Google Patents

Improvements to buttons for electric bells with indicator light

Info

Publication number
FR732912A
FR732912A FR732912DA FR732912A FR 732912 A FR732912 A FR 732912A FR 732912D A FR732912D A FR 732912DA FR 732912 A FR732912 A FR 732912A
Authority
FR
France
Prior art keywords
buttons
indicator light
electric bells
bells
electric
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
Other languages
French (fr)
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.)
Stone J and Co Ltd
J Stone and Co Ltd
Original Assignee
Stone J and Co Ltd
J Stone and 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 Stone J and Co Ltd, J Stone and Co Ltd filed Critical Stone J and Co Ltd
Application granted granted Critical
Publication of FR732912A publication Critical patent/FR732912A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02Details

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR732912D 1931-03-28 1932-03-10 Improvements to buttons for electric bells with indicator light Expired FR732912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB732912X 1931-03-28

Publications (1)

Publication Number Publication Date
FR732912A true FR732912A (en) 1932-09-28

Family

ID=10495612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR732912D Expired FR732912A (en) 1931-03-28 1932-03-10 Improvements to buttons for electric bells with indicator light

Country Status (1)

Country Link
FR (1) FR732912A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138844B (en) * 1960-01-18 1962-10-31 Busch Jaeger Duerener Metall Push button switch with extension piece
DE1168526B (en) * 1962-10-20 1964-04-23 Siemens Ag Arrangement for the extension of the ram drives for electrical switchgear
DE1665140B1 (en) * 1967-05-10 1970-08-06 Metzenauer & Jung Gmbh Aid for the installation of a switching device from the element to be adjusted and actuation button in a housing, control panel or the like.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138844B (en) * 1960-01-18 1962-10-31 Busch Jaeger Duerener Metall Push button switch with extension piece
DE1168526B (en) * 1962-10-20 1964-04-23 Siemens Ag Arrangement for the extension of the ram drives for electrical switchgear
DE1665140B1 (en) * 1967-05-10 1970-08-06 Metzenauer & Jung Gmbh Aid for the installation of a switching device from the element to be adjusted and actuation button in a housing, control panel or the like.

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