GB970097A - Improvements in or relating to thermostats - Google Patents
Improvements in or relating to thermostatsInfo
- Publication number
- GB970097A GB970097A GB3192562A GB3192562A GB970097A GB 970097 A GB970097 A GB 970097A GB 3192562 A GB3192562 A GB 3192562A GB 3192562 A GB3192562 A GB 3192562A GB 970097 A GB970097 A GB 970097A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- spring
- nut
- knob
- rod
- 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
- H01H37/12—Means for adjustment of "on" or "off" operating temperature
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Thermally Actuated Switches (AREA)
Abstract
970,097. Thermal switches. SATCHWELL CONTROLS Ltd. July 15, 1963 [Aug. 20, 1962], No. 31925/62. Heading H2B. [Also in Division F2] In an adjustable thermostat comprising a nickel-iron rod 1 in a brass tube 2 fixed to a switch casing 4, an adjusting nut 13 on the upper end of the rod 1 is secured to a member 17 formed with bevel teeth 21 engaged by a bevel gear 23 on a flexible shaft 24 carrying a knob 27, the inner end of shaft 24 rotating in a diametral bore in a shaft 22 on which the member 17 rotates. As the nut 13 is vertically adjusted the bevel teeth are held in mesh by a spring 19 and also by a resilient U-shaped member 26 straddling the shaft 22 and engaging grooves in the shaft 24, the shaft 24 flexing to accommodate the adjustment. A frictionlocking spring 15 engages radial grooves on the underside of the nut 13. The thermostat switch incorporates a magnetic snap-action mechanism as in Specification 625,492 and includes a spring 7 carrying a contact 9 co-operating with a fixed contact 10. A ceramic sleeve 5 loose on the rod 1 extends between the spring 7 and a flange 14 on the nut 13 so that rotation of the knob 27 (through an angle limited by a pin and arcuate slot engagement in the knob) adjusts the position of spring 7 and so adjusts the temperature at which the contacts 9, 10 engage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3192562A GB970097A (en) | 1962-08-20 | 1962-08-20 | Improvements in or relating to thermostats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3192562A GB970097A (en) | 1962-08-20 | 1962-08-20 | Improvements in or relating to thermostats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB970097A true GB970097A (en) | 1964-09-16 |
Family
ID=10330435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3192562A Expired GB970097A (en) | 1962-08-20 | 1962-08-20 | Improvements in or relating to thermostats |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB970097A (en) |
-
1962
- 1962-08-20 GB GB3192562A patent/GB970097A/en not_active Expired
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