GB193484A - Improvements in or relating to electrical switching devices particularly intended for use with sound warning signals - Google Patents

Improvements in or relating to electrical switching devices particularly intended for use with sound warning signals

Info

Publication number
GB193484A
GB193484A GB3127421A GB3127421A GB193484A GB 193484 A GB193484 A GB 193484A GB 3127421 A GB3127421 A GB 3127421A GB 3127421 A GB3127421 A GB 3127421A GB 193484 A GB193484 A GB 193484A
Authority
GB
United Kingdom
Prior art keywords
blade
block
contact
relating
switching devices
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
GB3127421A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3127421A priority Critical patent/GB193484A/en
Publication of GB193484A publication Critical patent/GB193484A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches

Landscapes

  • Switches With Compound Operations (AREA)

Abstract

193,484. Monnot, J. F. Nov. 22, 1921. Push-button switches.-Switches for controlling two note electric horns have a push button 14 working in an aperture 13 of a casing 12 which presses a resilient contact blade 1 fixed at one end to a block 2 against a fixed blade 3 completing a circuit through the winding 10. On further pressure being applied, the end of the blade 1 touches a contact block 5 completing a circuit through a winding 11 in parallel, and a further contact 15 may be arranged to be contacted by a still greater pressure on the button 14. In a modified form, Fig. 2, the free end of the blade 1 first touches the block 3, and further pressure bows the blade 1 until its middle point is in contact with the block 5. The switches may be used for controlling the circuits of the electric horn described in Specification 184,626, [Class 13, Bells &c.].
GB3127421A 1921-11-22 1921-11-22 Improvements in or relating to electrical switching devices particularly intended for use with sound warning signals Expired GB193484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3127421A GB193484A (en) 1921-11-22 1921-11-22 Improvements in or relating to electrical switching devices particularly intended for use with sound warning signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3127421A GB193484A (en) 1921-11-22 1921-11-22 Improvements in or relating to electrical switching devices particularly intended for use with sound warning signals

Publications (1)

Publication Number Publication Date
GB193484A true GB193484A (en) 1923-02-22

Family

ID=10320659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3127421A Expired GB193484A (en) 1921-11-22 1921-11-22 Improvements in or relating to electrical switching devices particularly intended for use with sound warning signals

Country Status (1)

Country Link
GB (1) GB193484A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745129A (en) * 2012-05-25 2012-10-24 陈振明 Automobile whistle device with weight volume

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745129A (en) * 2012-05-25 2012-10-24 陈振明 Automobile whistle device with weight volume

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