GB692307A - Improvements in, or relating to, electrically heated utensils - Google Patents

Improvements in, or relating to, electrically heated utensils

Info

Publication number
GB692307A
GB692307A GB437550A GB437550A GB692307A GB 692307 A GB692307 A GB 692307A GB 437550 A GB437550 A GB 437550A GB 437550 A GB437550 A GB 437550A GB 692307 A GB692307 A GB 692307A
Authority
GB
United Kingdom
Prior art keywords
arm
strip
spring
switch
contacts
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
GB437550A
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 GB437550A priority Critical patent/GB692307A/en
Publication of GB692307A publication Critical patent/GB692307A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/50—Urns with devices for keeping beverages hot or cool
    • A47J31/505—Urns with devices for keeping beverages hot or cool with heat-supply regulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

692,307. Thermal switches. DAVIDSON, A. D., and SCAMMELL, E. W. May 21, 1951 [Feb. 21, 1950], No. 4375/50. Class 38 (v) [Also in Group XI] A thermal switch, e.g. for an electrically-heated utensil (see Group XI) comprises a spring arm 15 carrying a contact 15a which co-operates with a fixed contact 20a on a bracket 20, and a bimetallic strip 16 the free end of which is connected by a compression spring 19 to the free end of the arm 15. The strip 16 and arm 15 are secured to an insulated bush 10 on a stud 11 in the centre of a base chamber in the utensil. The contacts 15a, 20a, which are normally closed, short-circuit an auxiliary heating element adjacent the switch until a predetermined temperature is attained when the strip 16 flexes to cause the spring 19 to pass dead centre and deflect the arm 15 to open the contacts 15a, 20a. The auxiliary heater is then brought into circuit in series with the main heater, and generates enough heat to maintain the switch open.
GB437550A 1950-02-21 1950-02-21 Improvements in, or relating to, electrically heated utensils Expired GB692307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB437550A GB692307A (en) 1950-02-21 1950-02-21 Improvements in, or relating to, electrically heated utensils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB437550A GB692307A (en) 1950-02-21 1950-02-21 Improvements in, or relating to, electrically heated utensils

Publications (1)

Publication Number Publication Date
GB692307A true GB692307A (en) 1953-06-03

Family

ID=9775982

Family Applications (1)

Application Number Title Priority Date Filing Date
GB437550A Expired GB692307A (en) 1950-02-21 1950-02-21 Improvements in, or relating to, electrically heated utensils

Country Status (1)

Country Link
GB (1) GB692307A (en)

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