GB1337733A - Electric switch devices - Google Patents
Electric switch devicesInfo
- Publication number
- GB1337733A GB1337733A GB1337733DA GB1337733A GB 1337733 A GB1337733 A GB 1337733A GB 1337733D A GB1337733D A GB 1337733DA GB 1337733 A GB1337733 A GB 1337733A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- rocking
- rocker
- knife edge
- fixed contact
- 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
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
- H01H23/16—Driving mechanisms
- H01H23/168—Driving mechanisms using cams
Landscapes
- Tumbler Switches (AREA)
Abstract
1337733 Snap-action switches; switch contacts MK ELECTRIC Ltd 19 April 1971 [26 Feb 1970] 9401/70 Heading H1N A switch comprises a first fixed contact 31 having a knife edge 32 constructed from precious metal inlay material on both sides of the knife edge and forming the fulcrum for and the contact with a rocking contact 34 rockable on knife edge 32 to bring it into and out of engagement with a further fixed contact 22. As shown, the precious metal is silver and rocking contact 34 engages a different further fixed contact in each of its two positions, Fig. 2 (not shown). Knife edge 32 has a groove 33, Fig. 1 (not shown) in its middle through which passes a flat portion 36, Fig. 1, of rocking contact 34. Rocking contact 34 is rocked by a pressure member 40 bearing on flat portion 36, Fig. 1, and is spring urged against contact 34 by two springs 44 in rocker operating member 13 pivoted at 38. Member 40 is pivoted on a pin 41 slidable in slots in rocker 13. Depression of rocker 13 snaps over contact 34. To aid in moving over contact 34 it has projections 46 which are engaged by projections 45, Fig. 2, on rocker 13. Instead of engaging a different fixed contact at each end, rocking contact 34 may engage a different fixed contact on opposite sides of one end. The switches may be multi-gang with a common pivot pin.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB940170 | 1970-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1337733A true GB1337733A (en) | 1973-11-21 |
Family
ID=9871269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1337733D Expired GB1337733A (en) | 1970-02-26 | 1970-02-26 | Electric switch devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1337733A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2185628A (en) * | 1986-01-16 | 1987-07-22 | Otehall Limited | Contact support for electric switches |
-
1970
- 1970-02-26 GB GB1337733D patent/GB1337733A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2185628A (en) * | 1986-01-16 | 1987-07-22 | Otehall Limited | Contact support for electric switches |
GB2185628B (en) * | 1986-01-16 | 1989-11-01 | Otehall Limited | Electric switches |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |