GB885502A - Improvements in a thermally responsive control device - Google Patents
Improvements in a thermally responsive control deviceInfo
- Publication number
- GB885502A GB885502A GB13047/58A GB1304758A GB885502A GB 885502 A GB885502 A GB 885502A GB 13047/58 A GB13047/58 A GB 13047/58A GB 1304758 A GB1304758 A GB 1304758A GB 885502 A GB885502 A GB 885502A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- sleeve
- thermo
- casing
- electric
- 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
- 238000010438 heat treatment Methods 0.000 abstract 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000013021 overheating Methods 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- 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
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
- G05D23/1921—Control of temperature characterised by the use of electric means characterised by the type of controller using a thermal motor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
- Control Of Temperature (AREA)
Abstract
885,502. Valves. ROBERTSHAW-FULTON CONTROLS CO. April 24, 1958 [July 22, 1957], No. 13047/58. Class 135. [Also in Group XIII] A control device comprises the combination of a thermo-electric magnetically re-set safety valve with a control valve 54, Fig. 4, actuated through a snap-acting device 64 either directly or through a crank 102 by a thermal-electric motor having a thermally expansible member 84 heated by an insulated resistance wire 86 in series with a thermostat. Gas for space or furnace heating passes the thermo-electric safety valve in casing 70 to an adjusting cock 24 containing a rotatable adjusting sleeve valve 40 and then past valve 54. The member 84 may be a sleeve, a solid rod or a bored rod adjustably connected to the casing at 106. The member 84 may be provided with ballast means to prevent overheating and straining the snapacting mechanism e.g. as shown in Fig. 10 by having an inner sleeve 488 engaging the adjusting screw 408 and which expands during long periods of heating of the element 84 to reduce its overall expansion. In other embodiments an aluminium wire extends through the bored rod to increase the rate of heat transfer to the surrounding structure or a dispersoid of heatconducting material, e.g. silver lacquer paste, may be introduced between the ends of the member 84 and the surrounding structure. The electrical ballast means may be formed by using a heating element whose resistance increases with temperature.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US885502XA | 1957-07-22 | 1957-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB885502A true GB885502A (en) | 1961-12-28 |
Family
ID=22212007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13047/58A Expired GB885502A (en) | 1957-07-22 | 1958-04-24 | Improvements in a thermally responsive control device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB885502A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2205687A (en) * | 1987-06-05 | 1988-12-14 | Electrovac | Temperature regulating device |
| WO1999023426A1 (en) * | 1997-10-30 | 1999-05-14 | Raytheon Company | Reactive thermo elastic cryostat |
-
1958
- 1958-04-24 GB GB13047/58A patent/GB885502A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2205687A (en) * | 1987-06-05 | 1988-12-14 | Electrovac | Temperature regulating device |
| GB2205687B (en) * | 1987-06-05 | 1991-09-25 | Electrovac | Temperature regulating device |
| WO1999023426A1 (en) * | 1997-10-30 | 1999-05-14 | Raytheon Company | Reactive thermo elastic cryostat |
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