GB348686A - Improvements in or relating to snap-action electric switches - Google Patents

Improvements in or relating to snap-action electric switches

Info

Publication number
GB348686A
GB348686A GB492530A GB492530A GB348686A GB 348686 A GB348686 A GB 348686A GB 492530 A GB492530 A GB 492530A GB 492530 A GB492530 A GB 492530A GB 348686 A GB348686 A GB 348686A
Authority
GB
United Kingdom
Prior art keywords
spring
crimped
positions
slot
dead
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
GB492530A
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.)
HENRY FRANCIS BIGGS
Original Assignee
HENRY FRANCIS BIGGS
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 HENRY FRANCIS BIGGS filed Critical HENRY FRANCIS BIGGS
Priority to GB492530A priority Critical patent/GB348686A/en
Publication of GB348686A publication Critical patent/GB348686A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Landscapes

  • Slide Switches (AREA)

Abstract

348,686. Tumbler switches. BIGGS, H. F., 19, Bradmore Road, Oxford. Feb. 13, 1930, No. 4925. [Class 38 (v).] A quick-action switch has a contact-carrying member comprising a spring plate fixed at one end and carrying a contactmember at its free end, the plate being longitudinally slotted along part of its length and the part lying to one side of the slot crimped to give a dead-centre action. Fig. 1 shows the application to a tumbler switch. A movable bridging contact 6 is carried by the free end of a spring 5 fixed at the other end to a pillar on the base 1. Fixed contacts 7 are carried by the base. The spring 5 consists of a strip of phosphor bronze, Fig. 2, with a longitudinal slot and the part on one side of the slot crimped. The spring so constructed has two positions of stable equilibrium in which it is flexed, and it passes through a dead-centre position in between the two stable positions. The dolly 3 has a lower triangular part 3b, the carriers of which press the spring 5 against the abutment 8 causing it to take up its two positions. The open position is shown in chain lines in Fig. 1. A modified form of strip has two slots and the two outside portions crimped.
GB492530A 1930-02-13 1930-02-13 Improvements in or relating to snap-action electric switches Expired GB348686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB492530A GB348686A (en) 1930-02-13 1930-02-13 Improvements in or relating to snap-action electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB492530A GB348686A (en) 1930-02-13 1930-02-13 Improvements in or relating to snap-action electric switches

Publications (1)

Publication Number Publication Date
GB348686A true GB348686A (en) 1931-05-13

Family

ID=9786440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB492530A Expired GB348686A (en) 1930-02-13 1930-02-13 Improvements in or relating to snap-action electric switches

Country Status (1)

Country Link
GB (1) GB348686A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426463A (en) * 1944-03-27 1947-08-26 Sylvania Electric Prod Glow starter for electric discharge devices
US2432488A (en) * 1944-03-27 1947-12-09 Sylvania Electric Prod Glow starter for electric discharge devices
US2700079A (en) * 1950-09-16 1955-01-18 Haydon Switch Inc Snap action switch
US2798915A (en) * 1954-01-04 1957-07-09 James P Watson Snap acting mechanism
US3130585A (en) * 1957-04-25 1964-04-28 Sunbeam Corp Snap-acting thermostat
FR2705493A1 (en) * 1993-05-17 1994-11-25 Crouzet Automatismes Snap-action switch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426463A (en) * 1944-03-27 1947-08-26 Sylvania Electric Prod Glow starter for electric discharge devices
US2432488A (en) * 1944-03-27 1947-12-09 Sylvania Electric Prod Glow starter for electric discharge devices
US2700079A (en) * 1950-09-16 1955-01-18 Haydon Switch Inc Snap action switch
US2798915A (en) * 1954-01-04 1957-07-09 James P Watson Snap acting mechanism
US3130585A (en) * 1957-04-25 1964-04-28 Sunbeam Corp Snap-acting thermostat
FR2705493A1 (en) * 1993-05-17 1994-11-25 Crouzet Automatismes Snap-action switch

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