GB618092A - Improvements in or relating to electric temperature regulators having signalling devices - Google Patents
Improvements in or relating to electric temperature regulators having signalling devicesInfo
- Publication number
- GB618092A GB618092A GB31036/46A GB3103646A GB618092A GB 618092 A GB618092 A GB 618092A GB 31036/46 A GB31036/46 A GB 31036/46A GB 3103646 A GB3103646 A GB 3103646A GB 618092 A GB618092 A GB 618092A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- spring
- lever
- plate
- pivoted
- 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
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2657—Details with different switches operated at substantially different pressures
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
- G05D23/27535—Details of the sensing element
- G05D23/27537—Details of the sensing element using expansible fluid
Abstract
618,092. Thermal switches. APPELBERG, C., (trading as BIRKA REGULATOR, C. APPELBERG). Oct. 18, 1946, No. 31036. Convention date, Oct. 20, 1945. [Class 38 (v)] A temperature regulator for electric heating apparatus has additional contacts controlled by the thermal element for indicating excessive departures from the mean temperature to which the regulator is set. A bellows 20 acts on a spring-controlled plate 2 pivoted on a spring-controlled plate 2 pivoted on a spindle 1 by means of lugs 11 and carrying contacts cooperating with contact-carrying arms 3 ... 5 also mounted by means of lugs on the spindle 1 and controlling, respectively, the circuit to regulating apparatus 18 and signal relays (not shown). The arms 3, 4, are above, and the arm 5 is bent round so as to lie below, the plate 2. For operating-temperature adjustment, a screw 24 co-operates with a U-shaped lever 30 pivoted on the spindle 1 and controlled by a spring 33. In order to maintain a constant temperature difference for the signal contactarms 4, 5, a spring 34 and stud 35 press the arm 3 against lever 30, and a screw 39 engaging the lever 30 bears on the top of arm 5 against the action of a spring which pushes the arm upwards. Normal control of the temperature is effected by the contacts on the plate 2 and arm 3, but, in the event of an excessive rise or fall in temperature, the plate 2 rises to engage the arm 4, or falls to engage the arm 5, to give a signal. Figs. 10, 11 show a further arrangement for simultaneous adjustment of the arms, the arm 5 being superposed over arm 4 and pivoted at 40 to a bracket 41 fixed to the plate 2, which is urged by a spring 23 against the thermal element. The plate 2 carries a screw 43 passing freely through the arm 4 and having a nut 44 on which the arm 5 bears by means of a spring 42. A screw 49 on the arm 4 is urged by the spring 42 against the adjustment lever which is pivoted at 45 and biassed by a spring 33 against the screw 24, a spring 34 urging the lever 3 downwards so that a stud 48 thereon bears on the adjustment lever. In a simpler form, the lever 30 is dispensed with and separate screws provided for adjusting arms 3 ... 5 independently of one another, Figs. 1-4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE618092X | 1945-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB618092A true GB618092A (en) | 1949-02-16 |
Family
ID=20313214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31036/46A Expired GB618092A (en) | 1945-10-20 | 1946-10-18 | Improvements in or relating to electric temperature regulators having signalling devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB618092A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617972A (en) * | 1969-12-09 | 1971-11-02 | Robertshaw Controls Co | Fuel control system and parts therefor or the like |
| NL2031261A (en) * | 2021-09-18 | 2023-03-27 | Univ Wenzhou | Mems sensor calibration device |
-
1946
- 1946-10-18 GB GB31036/46A patent/GB618092A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617972A (en) * | 1969-12-09 | 1971-11-02 | Robertshaw Controls Co | Fuel control system and parts therefor or the like |
| NL2031261A (en) * | 2021-09-18 | 2023-03-27 | Univ Wenzhou | Mems sensor calibration device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2394920A (en) | Control device | |
| GB1001377A (en) | Improvements in thermostatic switches | |
| GB618092A (en) | Improvements in or relating to electric temperature regulators having signalling devices | |
| US2381557A (en) | Thermostat | |
| GB552967A (en) | Improvements in or relating to bimetallic thermostats | |
| GB242726A (en) | Improvements in or relating to thermostatic relays | |
| GB1018422A (en) | Thermally responsive electrical control device | |
| US2480216A (en) | Thermostatic switch | |
| GB651051A (en) | Improvements in or relating to thermostatic electric switches for energy input regulators | |
| GB904644A (en) | A thermostatic electric control instrument | |
| US1704406A (en) | Thermostatic switch | |
| US1623842A (en) | Automatic pressure regulator | |
| US2041246A (en) | Thermostatic switch | |
| US2927186A (en) | Control device for a heating element | |
| US2417219A (en) | High side cutout unit for switches | |
| US3244831A (en) | Water level pressure switch with positive spring reset means | |
| GB710491A (en) | A new or improved system for controlling the temperature of electric and other heaters | |
| GB688264A (en) | Improvements in and relating to electrical energy regulators | |
| US1686766A (en) | Thermostatic control system | |
| GB708378A (en) | Improvements in or relating to thermostatic control devices | |
| GB864828A (en) | An improved device for regulating the average effect of electric heating apparatus | |
| GB700051A (en) | Improvements in electric thermostats | |
| US2570331A (en) | Heat control system | |
| US1675340A (en) | Thermal regulator | |
| GB717228A (en) | Improvements in or relating to pressure responsive electric switch devices |