GB676657A - Improvements in or relating to thermally controlled automatic circuit-breakers for electric circuits - Google Patents

Improvements in or relating to thermally controlled automatic circuit-breakers for electric circuits

Info

Publication number
GB676657A
GB676657A GB65350A GB65350A GB676657A GB 676657 A GB676657 A GB 676657A GB 65350 A GB65350 A GB 65350A GB 65350 A GB65350 A GB 65350A GB 676657 A GB676657 A GB 676657A
Authority
GB
United Kingdom
Prior art keywords
disc
breakers
relating
electric circuits
automatic circuit
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
GB65350A
Inventor
George Mark Bowley
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.)
Peerless and Ericsson Ltd
Original Assignee
Peerless and Ericsson 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 Peerless and Ericsson Ltd filed Critical Peerless and Ericsson Ltd
Priority to GB65350A priority Critical patent/GB676657A/en
Publication of GB676657A publication Critical patent/GB676657A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/04—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrothermal opening

Abstract

676,657. Thermal switches. PEERLESS & ERICSSON, Ltd. Feb. 8, 1951. [Jan. 10, 1950] No. 653/50. Class 38 (v). With rise of temperature the bimetallic cupped disc 19 snaps into its other position, the contacts 22 leaving the fixed contacts 17 and the adjacent parts of the disc engaging the shoulders 15 while the upper surface of the disc (now convex) presses upwards the plunger 25 which acts as an indicator. The disc retains its new shape on cooling and is reset by pressure on the plunger 25. The device may be mounted in an oven so as to be responsive to the temperature of the oven as well as to current flowing through the disc.
GB65350A 1950-01-10 1950-01-10 Improvements in or relating to thermally controlled automatic circuit-breakers for electric circuits Expired GB676657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB65350A GB676657A (en) 1950-01-10 1950-01-10 Improvements in or relating to thermally controlled automatic circuit-breakers for electric circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB65350A GB676657A (en) 1950-01-10 1950-01-10 Improvements in or relating to thermally controlled automatic circuit-breakers for electric circuits

Publications (1)

Publication Number Publication Date
GB676657A true GB676657A (en) 1952-07-30

Family

ID=9708135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB65350A Expired GB676657A (en) 1950-01-10 1950-01-10 Improvements in or relating to thermally controlled automatic circuit-breakers for electric circuits

Country Status (1)

Country Link
GB (1) GB676657A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227845A (en) * 1962-08-01 1966-01-04 Barz Joseph Temperature responsive switch having free floating disc actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227845A (en) * 1962-08-01 1966-01-04 Barz Joseph Temperature responsive switch having free floating disc actuator

Similar Documents

Publication Publication Date Title
GB647653A (en) Improvements in snap-action thermal switches
GB676657A (en) Improvements in or relating to thermally controlled automatic circuit-breakers for electric circuits
GB604754A (en) Circuit breaker with temperature compensation
GB851941A (en) Thermally responsive switch structures
GB521236A (en) Thermostatic control device
GB634238A (en) Improvements in thermally operable electric switches or circuit-breakers
GB422392A (en) Improvements in or relating to thermally-operated current limiting devices
GB428874A (en) Improvements in electric switches specially applicable to switches for thermostats
GB687614A (en) A thermostatic electromagnetic switch assembly
GB987888A (en) Electrical regulator switch
GB1007599A (en) Improvements in electrical thermostats
GB945950A (en) A thermally responsive electric switch
GB784567A (en) Improvements in thermally operated overload circuit breakers
GB717317A (en) Thermostats
GB517538A (en) Improvements in or relating to electric hot-plates
GB601041A (en) Improvements in the mounting of thermostatic devices on electric kettles and the like apparatus
GB882314A (en) Improvements in or relating to thermally operated electric switches
GB535855A (en) Improvements in or relating to thermostats
GB763892A (en) An improved thermally-responsive electric heat regulating switch
GB450282A (en) Improvements in thermal cut-outs for limiting the temperature in electrically heated appliances
GB491987A (en) Electric heating device for vulcanising indiarubber objects
GB972603A (en) Improvements in thermostatic switches
GB749716A (en) Improvements in or relating to thermally-controlled electric switches
GB691223A (en) Improvements in thermostat devices
GB739071A (en) Thermally-responsive electric switches