GB327775A - Improvements in thermostats - Google Patents
Improvements in thermostatsInfo
- Publication number
- GB327775A GB327775A GB205329A GB205329A GB327775A GB 327775 A GB327775 A GB 327775A GB 205329 A GB205329 A GB 205329A GB 205329 A GB205329 A GB 205329A GB 327775 A GB327775 A GB 327775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- rod
- diaphragm
- block
- tube
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
- G05D23/024—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type
- G05D23/026—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type the sensing element being placed outside a regulating fluid flow
- G05D23/027—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type the sensing element being placed outside a regulating fluid flow for combustible fluid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
327,775. Grayson, J. H. Jan. 21, 1929. Thermostats.-A valve 19 for controlling the flow of fluids, particularly the gas supply to a water heater, oven, or the like, is thermally actuated by a rod-and-tube type thermostat 5, 6, and is provided with a snap action. The valve stem 23 is sleeved over the moving element 5 of the thermostat, the end of the valve stem being in close proximity to a dished diaphragm or metal disc 30 through which the rod 5 passes freely. The edge of the diaphragm is freely supported in a recess in the valve casing, the face nearest the valve bearing against a shoulder 31, whilst a block 35 having a projecting face of the form shown in Fig. 3 bears against the opposite face of the diaphragm, the circle of contact being located near the free edge of the diaphragm. The block 35 is secured to the rod 5, a shoulder on the rod bearing against the block as the tube 6 contracts until the diaphragm " clicks " past its neutral position, thereby opening the valve, with a snap action against the pressure of a spring 26, the valve closing automatically when the temperature has risen sufficiently to cause the tube 6 to expand until the rod 5 has moved the block 35 far enough to allow the valve to seat. Adjustment of the valve opening may be effected by a lever 12 secured to the end of the rod 5, the opposite end of the rod being threaded into a screwed plug 10 fixed in the end of the tube, the lever 12 moving over a calibrated dial. A bye-pass 18 provides for the gas supply to a pilot light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB205329A GB327775A (en) | 1929-01-21 | 1929-01-21 | Improvements in thermostats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB205329A GB327775A (en) | 1929-01-21 | 1929-01-21 | Improvements in thermostats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB327775A true GB327775A (en) | 1930-04-17 |
Family
ID=9732767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB205329A Expired GB327775A (en) | 1929-01-21 | 1929-01-21 | Improvements in thermostats |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB327775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE948103C (en) * | 1952-07-23 | 1956-08-30 | Solex Sarl | Carburetor with auxiliary air or fuel shut-off valves |
| WO2005053702A2 (en) | 2003-12-01 | 2005-06-16 | Cambridge University Technical Services Limited | Anti-inflammatory agents |
-
1929
- 1929-01-21 GB GB205329A patent/GB327775A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE948103C (en) * | 1952-07-23 | 1956-08-30 | Solex Sarl | Carburetor with auxiliary air or fuel shut-off valves |
| WO2005053702A2 (en) | 2003-12-01 | 2005-06-16 | Cambridge University Technical Services Limited | Anti-inflammatory agents |
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