GB384025A - Improvements in or relating to automatic electric control devices for controlling the heat of incubators, rooms, and the like - Google Patents
Improvements in or relating to automatic electric control devices for controlling the heat of incubators, rooms, and the likeInfo
- Publication number
- GB384025A GB384025A GB2820131A GB2820131A GB384025A GB 384025 A GB384025 A GB 384025A GB 2820131 A GB2820131 A GB 2820131A GB 2820131 A GB2820131 A GB 2820131A GB 384025 A GB384025 A GB 384025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- rocked
- carried
- rod
- incubators
- 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
- H01H37/64—Contacts
- H01H37/66—Magnetic reinforcement of contact pressure; Magnet causing snap action
Landscapes
- Control Of Temperature (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Thermally Actuated Switches (AREA)
Abstract
384,025. Thermal and magnetic switches. GLOUCESTER INCUBATOR CO., Ltd. and WRENTMORE, G. W., Woodchester Works, Stroud, Gloucestershire. Oct. 10, 1931, No. 28201. [Class 38 (v).] An automatic device for the thermal control of incubators, rooms and the like comprises a rockable lever adapted to be moved by a temperature-sensitive device and carrying at one end a permanent magnet, a rockable armature which, as the magnet is rocked, is rocked about the armature axis and an electric contact or a rod secured to a damper carried by the armature. The thermostat comprises a capsule 11 having a nipple 13 with a central depression into which projects a projection on a spring blade 15 carried by the capsule. A rod 17 bears on the spring blade and is connected at its upper end by an adjustable screw 19 with a rockable lever 5 on the outer end of which is a permanent magnet 25. A plate armature 39 is carried by a yoke 37 pivoted at 35 so that as the magnet moves up and down the armature 39 is rocked. The armature carries a bar 41 which is secured to a pair of contacts 45 adapted to dip into mercury cups 47 of an electric heater. Alternatively or in addition the armature may carry a rod 61 to which a damper 67 is linked. The mercury cups 47 are provided with screwed plugs to prevent loss of mercury during transport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2820131A GB384025A (en) | 1931-10-10 | 1931-10-10 | Improvements in or relating to automatic electric control devices for controlling the heat of incubators, rooms, and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2820131A GB384025A (en) | 1931-10-10 | 1931-10-10 | Improvements in or relating to automatic electric control devices for controlling the heat of incubators, rooms, and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB384025A true GB384025A (en) | 1932-12-01 |
Family
ID=10271895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2820131A Expired GB384025A (en) | 1931-10-10 | 1931-10-10 | Improvements in or relating to automatic electric control devices for controlling the heat of incubators, rooms, and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB384025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950233A (en) * | 2019-12-20 | 2020-04-03 | 大连华锐重工集团股份有限公司 | Wind power gear box planet wheel assembly balancing device |
-
1931
- 1931-10-10 GB GB2820131A patent/GB384025A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110950233A (en) * | 2019-12-20 | 2020-04-03 | 大连华锐重工集团股份有限公司 | Wind power gear box planet wheel assembly balancing device |
| CN110950233B (en) * | 2019-12-20 | 2023-08-22 | 大连华锐重工集团股份有限公司 | Wind-powered electricity generation gear box planet wheel assembly balancing unit |
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