GB864949A - Improvements in or relating to thermostatic electric control switches - Google Patents

Improvements in or relating to thermostatic electric control switches

Info

Publication number
GB864949A
GB864949A GB682258A GB682258A GB864949A GB 864949 A GB864949 A GB 864949A GB 682258 A GB682258 A GB 682258A GB 682258 A GB682258 A GB 682258A GB 864949 A GB864949 A GB 864949A
Authority
GB
United Kingdom
Prior art keywords
spring
leaf
carries
screw
march
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
GB682258A
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.)
BERNARD STORK
R E Thompson & Co Sunbury Ltd
Original Assignee
BERNARD STORK
R E Thompson & Co Sunbury 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 BERNARD STORK, R E Thompson & Co Sunbury Ltd filed Critical BERNARD STORK
Priority to GB682258A priority Critical patent/GB864949A/en
Publication of GB864949A publication Critical patent/GB864949A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/12—Means for adjustment of "on" or "off" operating temperature
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/40—Wall-mounted casings; Parts thereof or accessories therefor
    • H02B1/42—Mounting of devices therein
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H01H2001/545—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force having permanent magnets directly associated with the contacts

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

864,949. Thermal switches. MACANDREW, J. F., STORK, B., and THOMPSON & CO. (SUNBURY) Ltd., R. E. March 3, 1959 [March 3, 1958], No. 6822/58. Class 38 (5). A thermostatic switch comprises a casing 3 having a spring clip 4 for holding a heat-conductive wall 6 against the side of an aquarium (Fig. 2, not shown). A bimetallic strip 1 and a leafspring 2 are secured to the wall 6 by means of a screw 9 and insulating washers 10. The strip 1 carries a permanent magnet 17 and contact 7, while leaf-spring 2 carries an armature 18 and contact 8. A rigid bracket 11 carries an adjusting-screw 12 abutting an insulator 14 on a rigid metal bar 15 riveted to the leaf-spring 2 near its fixed end. To control the switch differential a set-screw 19 is provided at the end of bar 15 so as to impart an adjustable initial deflection to the leaf-spring 2. A neon indicator lamp 20 lights when contacts 7, 8 are closed.
GB682258A 1958-03-03 1958-03-03 Improvements in or relating to thermostatic electric control switches Expired GB864949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB682258A GB864949A (en) 1958-03-03 1958-03-03 Improvements in or relating to thermostatic electric control switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB682258A GB864949A (en) 1958-03-03 1958-03-03 Improvements in or relating to thermostatic electric control switches

Publications (1)

Publication Number Publication Date
GB864949A true GB864949A (en) 1961-04-12

Family

ID=9821394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB682258A Expired GB864949A (en) 1958-03-03 1958-03-03 Improvements in or relating to thermostatic electric control switches

Country Status (1)

Country Link
GB (1) GB864949A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251973A (en) * 1964-04-15 1966-05-17 Gen Electric Electric bedcover control with adjustable switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251973A (en) * 1964-04-15 1966-05-17 Gen Electric Electric bedcover control with adjustable switch

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