GB191118778A - Electric Push Button Switch. - Google Patents

Electric Push Button Switch.

Info

Publication number
GB191118778A
GB191118778A GB191118778DA GB191118778A GB 191118778 A GB191118778 A GB 191118778A GB 191118778D A GB191118778D A GB 191118778DA GB 191118778 A GB191118778 A GB 191118778A
Authority
GB
United Kingdom
Prior art keywords
mercury
fork
button
cups
push
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
Inventor
Joseph Brunner
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
Application granted granted Critical
Publication of GB191118778A publication Critical patent/GB191118778A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/16—Switches having at least one liquid contact operated by dipping soil contact into stationary contact liquid

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

18,778. Brunner, J. Aug. 21. Switches.-Relates to switches of the kind in which two insulated mercury-cups are electrically connected together by a U-shaped copper fork which is operated from the outside of a casing by a pair of push-buttons, springs being dispensed with, and consists in employing a swinging metal fork l provided with an ear r controlled by a pair of interconnected pushbuttons o, the device being arranged in a casing a hermetically closed by means of a cover provided with a layer of rubber. The upper push-button o carries a pin s which, when the button is depressed, engages the ear and swings the fork out of engagement with the mercury - cups d. On depressing the lower button, which is connected to the upper by the pivoted arm p, the upper button is pushed outwards and the ear drops into the depression t, which allows the fork to fall into the mercury cups. The mercury is covered by a layer of kerosene or alcohol to prevent sparking. One of the push-buttons is painted white and the other black, so as to indicate readily whether the switch is on or off.
GB191118778D 1911-04-18 1911-08-21 Electric Push Button Switch. Expired GB191118778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE248206T 1911-04-18

Publications (1)

Publication Number Publication Date
GB191118778A true GB191118778A (en) 1911-12-21

Family

ID=32566261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191118778D Expired GB191118778A (en) 1911-04-18 1911-08-21 Electric Push Button Switch.

Country Status (3)

Country Link
DE (1) DE248206C (en)
FR (1) FR435190A (en)
GB (1) GB191118778A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5503506A (en) * 1993-06-24 1996-04-02 Hughes Aircraft Company High precision, high surface finish broaching tool

Also Published As

Publication number Publication date
DE248206C (en)
FR435190A (en) 1912-02-23

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