GB692307A - Improvements in, or relating to, electrically heated utensils - Google Patents
Improvements in, or relating to, electrically heated utensilsInfo
- 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
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.
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) |
-
1950
- 1950-02-21 GB GB437550A patent/GB692307A/en not_active Expired
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