GB622395A - Improvements in thermal responsive electric switches - Google Patents

Improvements in thermal responsive electric switches

Info

Publication number
GB622395A
GB622395A GB747047A GB747047A GB622395A GB 622395 A GB622395 A GB 622395A GB 747047 A GB747047 A GB 747047A GB 747047 A GB747047 A GB 747047A GB 622395 A GB622395 A GB 622395A
Authority
GB
United Kingdom
Prior art keywords
contact
secured
armature
pin
resilient contact
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
GB747047A
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.)
IVOR PUGH
British Thomson Houston Co Ltd
Original Assignee
IVOR PUGH
British Thomson Houston 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 IVOR PUGH, British Thomson Houston Co Ltd filed Critical IVOR PUGH
Priority to GB747047A priority Critical patent/GB622395A/en
Publication of GB622395A publication Critical patent/GB622395A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/64—Contacts
    • H01H37/66—Magnetic reinforcement of contact pressure; Magnet causing snap action

Landscapes

  • Thermally Actuated Switches (AREA)
  • Cookers (AREA)

Abstract

622,395. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., SIMS, W. J., and PUGH, I. March 18, 1947, No. 7470. [Class 38(v)] The metal casing 4 of a cut-out for an electric kettle 2 has soldered to it the ends 10, 11 of a sheathed wire immersion heater 1 and houses an insulating base 7 carrying plug pins 8, 9. A bimetal strip 22 secured on a post 21 on the base 7 lies adjacent the wall 3 of the casing 4 and has a projection 24 which engages a channel-shaped resilient contact 17 fixed at one end to a terminal 16, and on rise of temperature separates the contact 17 from another resilient contact 19 secured at 20 to the plug pin 9. To impart a snap-action the contact 17 carries an apertured discular armature 26 and a pin 27 passing through the armature adjustably supports a magnet 25 above it. On cooling, the contacts 17, 19 re-engage.
GB747047A 1947-03-18 1947-03-18 Improvements in thermal responsive electric switches Expired GB622395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB747047A GB622395A (en) 1947-03-18 1947-03-18 Improvements in thermal responsive electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB747047A GB622395A (en) 1947-03-18 1947-03-18 Improvements in thermal responsive electric switches

Publications (1)

Publication Number Publication Date
GB622395A true GB622395A (en) 1949-05-02

Family

ID=9833720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB747047A Expired GB622395A (en) 1947-03-18 1947-03-18 Improvements in thermal responsive electric switches

Country Status (1)

Country Link
GB (1) GB622395A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715567A (en) * 1970-11-04 1973-02-06 R Mandziak Liquid heating assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715567A (en) * 1970-11-04 1973-02-06 R Mandziak Liquid heating assembly

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