GB211492A - Improvements in and relating to electric lighting circuits - Google Patents

Improvements in and relating to electric lighting circuits

Info

Publication number
GB211492A
GB211492A GB383424A GB383424A GB211492A GB 211492 A GB211492 A GB 211492A GB 383424 A GB383424 A GB 383424A GB 383424 A GB383424 A GB 383424A GB 211492 A GB211492 A GB 211492A
Authority
GB
United Kingdom
Prior art keywords
lamp
contact
principal
relating
extinguished
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
GB383424A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB383424A priority Critical patent/GB211492A/en
Publication of GB211492A publication Critical patent/GB211492A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/30—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action
    • H01H43/301—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material
    • H01H43/302—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies
    • H01H43/304—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to thermal action based on the expansion or contraction of a material of solid bodies of two bodies expanding or contracting in a different manner, e.g. bimetallic elements

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

211,492. Galli, V. Feb. 14, 1924. Thermal switches for cutting out a principal lamp are operated by heat generated in a non- laminated core 1 of a transformer supplying subsidiary lamps. The switch comprises a bimetallic ring 15 which is fixed at one end 16 and at the other is connected to a. lever 17 normally contacting with a contact 20. The principal lamp is in circuit with the ring 15, so that, when the latter expands sufficiently to break the contact at 20 the lamp is extinguished. The contact 20 is carried by a rotatable insulating disc, which can be adjusted by a projection so as to regulate the time interval before the principal lamp is extinguished.
GB383424A 1924-02-14 1924-02-14 Improvements in and relating to electric lighting circuits Expired GB211492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB383424A GB211492A (en) 1924-02-14 1924-02-14 Improvements in and relating to electric lighting circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB383424A GB211492A (en) 1924-02-14 1924-02-14 Improvements in and relating to electric lighting circuits

Publications (1)

Publication Number Publication Date
GB211492A true GB211492A (en) 1925-02-19

Family

ID=9765804

Family Applications (1)

Application Number Title Priority Date Filing Date
GB383424A Expired GB211492A (en) 1924-02-14 1924-02-14 Improvements in and relating to electric lighting circuits

Country Status (1)

Country Link
GB (1) GB211492A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961817C (en) * 1951-12-18 1957-04-11 Licentia Gmbh Indirectly heated thermostat for installation self-switch
GB2399460A (en) * 2003-03-07 2004-09-15 Melvyn John Coles Lamp fitting including low voltage transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961817C (en) * 1951-12-18 1957-04-11 Licentia Gmbh Indirectly heated thermostat for installation self-switch
GB2399460A (en) * 2003-03-07 2004-09-15 Melvyn John Coles Lamp fitting including low voltage transformer

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