GB221504A - Improvements in thermal or pressure operated electric switches - Google Patents
Improvements in thermal or pressure operated electric switchesInfo
- Publication number
- GB221504A GB221504A GB20747/24A GB2074724A GB221504A GB 221504 A GB221504 A GB 221504A GB 20747/24 A GB20747/24 A GB 20747/24A GB 2074724 A GB2074724 A GB 2074724A GB 221504 A GB221504 A GB 221504A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- thermal
- pressure operated
- electric switches
- operated electric
- 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
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
221,504. Guidet, J. L. H. Sept. 5, 1923, [Convention date]. Thermal switches of the kind in which a flexible diaphragm B is moved from the full line to the dotted line position or vice versa under the influence of pressure exerted by a fluid or a solid, are provided with one or more annular ribs C near the edge to prevent strain on the material of the diaphragm &c. The diaphragm may be nipped between massive rings M as shown in Fig. 3 or embedded in a single ring, the joint being soldered. Fig. 5 shows a lost motion device between the diaphragm B and a switch member P. When the diaphragm B snaps completely into its upper position, an adjustable nut R is moved upwards to engage a sleeve T on the member P thereby actuating the switch, but small movements of the diaphragm have no effect.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR221504X | 1923-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB221504A true GB221504A (en) | 1925-05-14 |
Family
ID=8881622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20747/24A Expired GB221504A (en) | 1923-09-05 | 1924-09-03 | Improvements in thermal or pressure operated electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB221504A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2421797A (en) * | 1943-08-14 | 1947-06-10 | Stewart Warner Corp | Pressure switch |
| US2445756A (en) * | 1944-06-21 | 1948-07-27 | F A Smith Mfg Company | Fluid operated switch assembly |
| US2768261A (en) * | 1953-02-04 | 1956-10-23 | Graviner Manufacturing Co | Explosion protection systems and apparatus therefor |
| US3423552A (en) * | 1967-01-09 | 1969-01-21 | Anatole J Sipin | Snap action pressure switch |
| EP2209131A1 (en) * | 2009-01-14 | 2010-07-21 | Sick Ag | Device with at least one operating element |
-
1924
- 1924-09-03 GB GB20747/24A patent/GB221504A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2421797A (en) * | 1943-08-14 | 1947-06-10 | Stewart Warner Corp | Pressure switch |
| US2445756A (en) * | 1944-06-21 | 1948-07-27 | F A Smith Mfg Company | Fluid operated switch assembly |
| US2768261A (en) * | 1953-02-04 | 1956-10-23 | Graviner Manufacturing Co | Explosion protection systems and apparatus therefor |
| US3423552A (en) * | 1967-01-09 | 1969-01-21 | Anatole J Sipin | Snap action pressure switch |
| EP2209131A1 (en) * | 2009-01-14 | 2010-07-21 | Sick Ag | Device with at least one operating element |
| US8604375B2 (en) | 2009-01-14 | 2013-12-10 | Sick Ag | Device with at least one control element |
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