GB807522A - Improvements in or relating to snap-action electric switches - Google Patents
Improvements in or relating to snap-action electric switchesInfo
- Publication number
- GB807522A GB807522A GB555A GB555A GB807522A GB 807522 A GB807522 A GB 807522A GB 555 A GB555 A GB 555A GB 555 A GB555 A GB 555A GB 807522 A GB807522 A GB 807522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- blade
- snap
- contacts
- spring
- 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
- H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
- H01H13/285—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs having a symmetrical configuration
Landscapes
- Tumbler Switches (AREA)
Abstract
807,522. Retractive switches; snap-action switches. HULBERT, C. LACY-. Dec. 29, 1955 [Jan. 1, 1955], No. 5/55. Class 38 (5). A snap-action switch comprises a bowed, contact-carrying blade 26 held under end compression by springs 32 and fixed by a screw or rivet 37 to the insulating head 24 of a plunger 20. Depression of the plunger causes the blade to snap through a dead-centre position so that contacts 28 disengage fixed contacts 13 and engage contacts 12. The switch may be retractive in which case the plunger is returned by a spring 35 as shown, or by a spring disposed round the upper end of the plunger. Alternatively the blade may be returned (a) by pulling the plunger, (b) by a second plunger disposed beneath the blade. The two springs 32 may be replaced by a single central spring moving through a longitudinal aperture in the blade. The fixed contacts 12, 13 and terminals 11 are mounted in an inner casing 10 inside an outer casing 15. The plunger may be wholly of insulating material. The arrangement may be used as a limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB555A GB807522A (en) | 1955-01-01 | 1955-01-01 | Improvements in or relating to snap-action electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB555A GB807522A (en) | 1955-01-01 | 1955-01-01 | Improvements in or relating to snap-action electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB807522A true GB807522A (en) | 1959-01-14 |
Family
ID=9696654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB555A Expired GB807522A (en) | 1955-01-01 | 1955-01-01 | Improvements in or relating to snap-action electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB807522A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723219A (en) * | 2012-06-20 | 2012-10-10 | 科都电气有限公司 | Kick switch with locking mechanism |
-
1955
- 1955-01-01 GB GB555A patent/GB807522A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723219A (en) * | 2012-06-20 | 2012-10-10 | 科都电气有限公司 | Kick switch with locking mechanism |
| CN102723219B (en) * | 2012-06-20 | 2014-09-24 | 科都电气有限公司 | Kick switch with locking mechanism |
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