GB850549A - Improvements in and relating to snap action electric switches - Google Patents
Improvements in and relating to snap action electric switchesInfo
- Publication number
- GB850549A GB850549A GB1195558A GB1195558A GB850549A GB 850549 A GB850549 A GB 850549A GB 1195558 A GB1195558 A GB 1195558A GB 1195558 A GB1195558 A GB 1195558A GB 850549 A GB850549 A GB 850549A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- snap
- switch
- bimetallic
- screw
- 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
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
Landscapes
- Thermally Actuated Switches (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
850,549. Snap-action switches; thermal switches. MACLAREN & CO. Ltd., R., RICHMOND, T. G., ADAM, I. R., and KING, D. M. March 26, 1959 [April 15, 1958], No. 11955/58. Class 38 (5). A snap-action switch employs a plate 10 held out of a true plane by a plate 12 so that it will snap through its flat position and is acted upon or adjusted by (if the plate 10 is a bi-metal) pressure on two points (by screws 18) one on each side of the part secured at 15 at a place remote from the moving contact 13. The construction shown uses a bimetallic plate and screw 19 is the temperature setting control. In a modification (not shown) screw 19 acts through a first order lever to adjust a tension spring which applies force to the plate to make it impossible to over stress it. In a further modification (not shown) an external rod is provided to take the switch operating force and the plate is not bimetallic. Some form of heat sensitive device for example a rod and tube assembly is used to contact the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1195558A GB850549A (en) | 1958-04-15 | 1958-04-15 | Improvements in and relating to snap action electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1195558A GB850549A (en) | 1958-04-15 | 1958-04-15 | Improvements in and relating to snap action electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB850549A true GB850549A (en) | 1960-10-05 |
Family
ID=9995710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1195558A Expired GB850549A (en) | 1958-04-15 | 1958-04-15 | Improvements in and relating to snap action electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB850549A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3192346A (en) * | 1963-06-03 | 1965-06-29 | Gen Electric | Current and temperature snap acting devices |
| CN103137363A (en) * | 2011-11-29 | 2013-06-05 | 英业达股份有限公司 | Key structure |
-
1958
- 1958-04-15 GB GB1195558A patent/GB850549A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3192346A (en) * | 1963-06-03 | 1965-06-29 | Gen Electric | Current and temperature snap acting devices |
| CN103137363A (en) * | 2011-11-29 | 2013-06-05 | 英业达股份有限公司 | Key structure |
| CN103137363B (en) * | 2011-11-29 | 2015-03-25 | 英业达股份有限公司 | Key structure |
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