GB786278A - An electric temperature control device - Google Patents
An electric temperature control deviceInfo
- Publication number
- GB786278A GB786278A GB36396/54A GB3639654A GB786278A GB 786278 A GB786278 A GB 786278A GB 36396/54 A GB36396/54 A GB 36396/54A GB 3639654 A GB3639654 A GB 3639654A GB 786278 A GB786278 A GB 786278A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- contact
- cover
- resistance
- plate
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
786,278. Thermal switches. LICENTIA PATENT-VERWALTUNGS-GES. Dec. 15, 1954 [Dec. 15, 1953; April 6, 1954; Nov. 8, 1954], No. 36396/54. Class 38 (5). A switch comprises two heat-responsive twolayer strips, each of which is U-shaped with one strip arranged within the other which latter has one leg bent back to face one leg of the inner strip, the two facing ends being interconnected by a toggle member and being movable in opposite directions when heated or cooled so as to actuate contacts. As shown, the strips 1, 2 are clamped to a metal plate 20 which is in thermal contact with a nut 30 arranged to be placed in thermal contact with, e.g., the evaporator of a refrigerator. The free ends of the strips are interconnected by a U- shaped spring 8 and the inner strip 2 carries an insulating rod 25 acting on contact springs 26, although one of the strips may carry a contact co-operating with a spring-mounted contact. A cable 32 is received in a liquid-tight manner in grooves in a cover 21b and a base-plate 21a, which are secured together in a liquid-tight manner as by fusing together or by casting a material into a groove 33 between the rims of the cover and base-plate. A locking wire may be arranged in the groove, Fig. 2 (not shown). A heating coil controlled by a rheostat may surround one or both of the strips, or the strips may carry the heating current, as by a resistance material applied to the strips. Alternatively, a resistance 18 may be arranged in the casing adjacent the bends of the strips, either outside the bend as shown or inside, Fig. 4 (not shown). If a resistance 18 is used, the inner wall of the cover 21b may have a metal coating. The strips may be of bimetal or different insulating materials with different heat coefficients.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE786278X | 1953-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB786278A true GB786278A (en) | 1957-11-13 |
Family
ID=6698989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36396/54A Expired GB786278A (en) | 1953-12-15 | 1954-12-15 | An electric temperature control device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB786278A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2281445A (en) * | 1993-08-25 | 1995-03-01 | Otter Controls Ltd | Adjustable thermostatic switch |
-
1954
- 1954-12-15 GB GB36396/54A patent/GB786278A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2281445A (en) * | 1993-08-25 | 1995-03-01 | Otter Controls Ltd | Adjustable thermostatic switch |
GB2281445B (en) * | 1993-08-25 | 1997-07-02 | Otter Controls Ltd | Improvements relating to electrical switches |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2237705A (en) | Snap-acting device | |
US2394121A (en) | Resettable snap action thermal limit switch | |
US2451535A (en) | Multiple control | |
US1839935A (en) | Electric thermostat | |
GB786278A (en) | An electric temperature control device | |
US3108166A (en) | Thermal timing apparatus | |
SE7514097L (en) | WITH SNEPP OPERATION WORKING THERMALLY SENSITIVE BIMETALLIC MANUFACTURERS | |
US2322235A (en) | Switch | |
GB936801A (en) | Thermostatic switches | |
SE7503472L (en) | ||
US1487515A (en) | Thermal responsive switch | |
US2824193A (en) | Thermostat apparatus | |
US2675445A (en) | Thermostat for heating pads, blankets, and the like | |
US2476083A (en) | Thermostatic switch | |
US2313969A (en) | Control apparatus | |
US2689288A (en) | Thermal relay | |
US2640130A (en) | Thermostat | |
US2667612A (en) | Thermostatically controlled electric switch | |
US2340099A (en) | Thermal switch | |
US3750074A (en) | Plunger type relay | |
GB979180A (en) | Bimetal relays | |
US2936354A (en) | Temperature compensated thermal power relay | |
US2815417A (en) | Thermostat | |
US1511352A (en) | Thermal relay | |
US2896051A (en) | Relay |