GB586924A - Improvements in or relating to thermostatically-controlled electric heating equipment - Google Patents
Improvements in or relating to thermostatically-controlled electric heating equipmentInfo
- Publication number
- GB586924A GB586924A GB764344A GB764344A GB586924A GB 586924 A GB586924 A GB 586924A GB 764344 A GB764344 A GB 764344A GB 764344 A GB764344 A GB 764344A GB 586924 A GB586924 A GB 586924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- bracket
- heated
- blade
- plate
- 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
- 238000005485 electric heating Methods 0.000 title 1
- 238000009835 boiling Methods 0.000 abstract 2
- 230000005855 radiation Effects 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/002—Thermally-actuated switches combined with protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H2037/326—Thermally-sensitive members with radiative heat transfer to the switch, e.g. special absorption surfaces
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
586,924. Thermal switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and ROSEBY, P. N. April 25, 1944, No. 7643. [Class 38 (v)] A thermal switch for protecting boiling plates having a loading such that dangerous temperature-rises may occur when the plate is energized but not in use, has a bimetal strip 18 heated by radiation from the underside of the plate 10 acting through apertures 20, 21 in the base 13. The strip is connected at its free end, through a deadcentre spring 26 passing through a hole in a bracket 28, to a U-shaped contact blade 29 resting in V-notches in the bracket 28. Radiant heat passing through the preferably-adjustable slot 20 causes the strip 18 to bend away from the base 13 and move the blade 29 away from contact 31 against a stop 41. A second, similarly-acting, bimetal strip 19, tensioned by a screw 27, retards the action of strip 18 by rotating their common support 24 clockwise when heated by radiation through the aperture 21, which may be adjustable by a slide 22. Conductors 38, 39 ensure good connection between the blade and bracket 28. The switch may be operated in conjunction with the control switch described in Specification 565,996. Either or both of the thermal strips may be heated additionally by conduction. The boiling plate may be as described in Specificaton 586,920, [Group XI].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB764344A GB586924A (en) | 1944-04-25 | 1944-04-25 | Improvements in or relating to thermostatically-controlled electric heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB764344A GB586924A (en) | 1944-04-25 | 1944-04-25 | Improvements in or relating to thermostatically-controlled electric heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB586924A true GB586924A (en) | 1947-04-08 |
Family
ID=9837032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB764344A Expired GB586924A (en) | 1944-04-25 | 1944-04-25 | Improvements in or relating to thermostatically-controlled electric heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB586924A (en) |
-
1944
- 1944-04-25 GB GB764344A patent/GB586924A/en not_active Expired
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