GB565309A - Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container - Google Patents
Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a containerInfo
- Publication number
- GB565309A GB565309A GB763043A GB763043A GB565309A GB 565309 A GB565309 A GB 565309A GB 763043 A GB763043 A GB 763043A GB 763043 A GB763043 A GB 763043A GB 565309 A GB565309 A GB 565309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- rod
- tube
- fixed
- arms
- 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
- 239000007788 liquid Substances 0.000 title abstract 2
- 229910001374 Invar Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements or dispositions of alarm or automatic safety devices
- F22B37/428—Feed-water supply alarm devices using dilatation of solids or liquids
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Temperature (AREA)
Abstract
565,309. Signalling or controlling liquid levels. BRITISH THERMOSTAT CO., Ltd., and SHERLOCK, J. E. May 13, 1943, No. 7630. [Class 123 (i)] [Also in Group XXXVII] A casing 1, shown in sectional elevation, is connected by pipes 2 to a boiler, and is provided with thermally expansible metal tubes 4, 5 one above the other, fixed to the end wall 6. The opposite ends slide in a guide 7 fixed to the end wall 9, and each tube contains a push-rod 11, 12 of " Invar " (Registered Trade Mark), the free ends of which actuate an electric switch 25. The switch mechanism comprises a rocking lever 19 pivoted at 20, surrounding a fixed member 31 and integral with arms 21, 22 engaged by the rods 11, 12. The free ends of arms 22 carry adjustable elements 23 for operating a rod 24 which controls the switch 25 mounted on a fixed bracket 26. The pivot 20 is carried by a sliding member 27 which is pressed by spring 28 to maintain the arms 22 in engagement with rods 11, 12. The tube 5 is constantly subject to an electric heater 10, but approximates in temperature to tube 4 so long as it is submerged. If uncovered by a fall of water level, tube 5 rises in temperature and actuates its rod 12 to move the switch rod 24. Variations in ambient temperature of the rods 4, 5 do not operate the switch. The switch controls a pump, valve, or alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB763043A GB565309A (en) | 1943-05-13 | 1943-05-13 | Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB763043A GB565309A (en) | 1943-05-13 | 1943-05-13 | Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB565309A true GB565309A (en) | 1944-11-06 |
Family
ID=9836793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB763043A Expired GB565309A (en) | 1943-05-13 | 1943-05-13 | Improvements in or relating to devices for indicating and/or controlling a predetermined level of liquid in a container |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB565309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1535491A2 (en) * | 2002-08-27 | 2005-06-01 | Thermion Ltd | Improvements in thermostat for water boiler |
-
1943
- 1943-05-13 GB GB763043A patent/GB565309A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1535491A2 (en) * | 2002-08-27 | 2005-06-01 | Thermion Ltd | Improvements in thermostat for water boiler |
| EP1535491A4 (en) * | 2002-08-27 | 2007-03-21 | Thermion Ltd | Improvements in thermostat for water boiler |
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