GB680071A - Improvements in electric switches and contact arrangements therefor - Google Patents

Improvements in electric switches and contact arrangements therefor

Info

Publication number
GB680071A
GB680071A GB2457550A GB2457550A GB680071A GB 680071 A GB680071 A GB 680071A GB 2457550 A GB2457550 A GB 2457550A GB 2457550 A GB2457550 A GB 2457550A GB 680071 A GB680071 A GB 680071A
Authority
GB
United Kingdom
Prior art keywords
contact
electric switches
contact arrangements
dolly
plate
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
GB2457550A
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.)
GEOFFREY STEPHEN PEARCE
George H Scholes & Co Ltd
Original Assignee
GEOFFREY STEPHEN PEARCE
George H Scholes & 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 GEOFFREY STEPHEN PEARCE, George H Scholes & Co Ltd filed Critical GEOFFREY STEPHEN PEARCE
Priority to GB2457550A priority Critical patent/GB680071A/en
Publication of GB680071A publication Critical patent/GB680071A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/168—Driving mechanisms using cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tumbler Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

680,071. Tumbler switches. SCHOLES & CO., Ltd., G. H., and PEARCE, G. S. July 4,1951 [Oct. 9, 1950], No. 24575/50. Class 38 (v). In a dolly-operated switch, the movable contact a pivots about a shaped part b of a fixed contact c when the dolly h depresses a plate g, having a tongue g<SP>1</SP> engaging a bare recess i, thereby compressing springs e, f, so as to close contacts a, d,. The contact a and plate g can thus drag away from the co-operating fixed pivot elements if the spring pressure is removed. The Specification refers also to more than one spring on one or both sides of the contact a, and to other forms of fulcrum.
GB2457550A 1950-10-09 1950-10-09 Improvements in electric switches and contact arrangements therefor Expired GB680071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2457550A GB680071A (en) 1950-10-09 1950-10-09 Improvements in electric switches and contact arrangements therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2457550A GB680071A (en) 1950-10-09 1950-10-09 Improvements in electric switches and contact arrangements therefor

Publications (1)

Publication Number Publication Date
GB680071A true GB680071A (en) 1952-10-01

Family

ID=10213805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2457550A Expired GB680071A (en) 1950-10-09 1950-10-09 Improvements in electric switches and contact arrangements therefor

Country Status (1)

Country Link
GB (1) GB680071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587834A1 (en) * 1985-09-21 1987-03-27 Jung Albrecht Double acting rocker switch for domestic use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587834A1 (en) * 1985-09-21 1987-03-27 Jung Albrecht Double acting rocker switch for domestic use
DE3533691A1 (en) * 1985-09-21 1987-04-02 Jung Albrecht Fa Electrical domestic installation switch, especially a rocker switch

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