GB689454A - Improvements in snap action electric switches - Google Patents
Improvements in snap action electric switchesInfo
- Publication number
- GB689454A GB689454A GB219449A GB219449A GB689454A GB 689454 A GB689454 A GB 689454A GB 219449 A GB219449 A GB 219449A GB 219449 A GB219449 A GB 219449A GB 689454 A GB689454 A GB 689454A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- contact
- snap action
- electric switches
- abutments
- 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
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs
Landscapes
- Scissors And Nippers (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Knives (AREA)
Abstract
689,454. Snap-action switches. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 11, 1950 [Jan. 26, 1949], No. 2194/49. Class 38 (v) A switch of the kind which comprises a blade compressed between abutments and carrying a contact or contacts situated not more than one quarter of the blade length away from the end of the blade remote from the point at which the operating force is applied, so that the contact pressure is thereby initially increased on such application, is modified in that the blade comprises two parts Dl, D2, mounted between abutments A, B and connected at P, so that when force is applied at X, part D1 snaps over and pulls the part D2 over by means of the part P. Abutment B may be rotatable and part P removed, and the upper part of A may be fixed, with the lower part of A rotatable. The contact C is arranged not more than one quarter of the blade length away from the abutment A. Specification 617,076 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB219449A GB689454A (en) | 1949-01-26 | 1949-01-26 | Improvements in snap action electric switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB219449A GB689454A (en) | 1949-01-26 | 1949-01-26 | Improvements in snap action electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB689454A true GB689454A (en) | 1953-03-25 |
Family
ID=9735241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB219449A Expired GB689454A (en) | 1949-01-26 | 1949-01-26 | Improvements in snap action electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB689454A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3094594A (en) * | 1958-03-10 | 1963-06-18 | James P Watson | Snap acting mechanism |
-
1949
- 1949-01-26 GB GB219449A patent/GB689454A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3094594A (en) * | 1958-03-10 | 1963-06-18 | James P Watson | Snap acting mechanism |
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