GB140181A - Improvements in or relating to electric switches - Google Patents
Improvements in or relating to electric switchesInfo
- Publication number
- GB140181A GB140181A GB421919A GB421919A GB140181A GB 140181 A GB140181 A GB 140181A GB 421919 A GB421919 A GB 421919A GB 421919 A GB421919 A GB 421919A GB 140181 A GB140181 A GB 140181A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- contact members
- tumbler
- alinement
- bridge
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/54—Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch
- H01H21/58—Change-over switches without stable intermediate position
Landscapes
- Tumbler Switches (AREA)
Abstract
140,181. Crabtree, J. A. Feb. 20, 1919. Snap-action switches; contacts.-A double-pole switch is constructed within the dimensions of an ordinary single-pole tumbler switch while retaining normal break dimensions by arranging the fixed contacts out of alinement so that two of the movable contacts may move into positions in line with two of the fixed contacts without engaging them. As shown applied to a tumbler switch having the dead-centre quick-action movement described in Specifications 140,179 and 140,180, two fixed contacts 44, 43 are arranged at each side of the axis of the tumbler out of alinement with one another. The movable bridging contact members 45, which move together as shown in Figs. 2 and 3, bridge the pairs of contacts 43, 44 in the closed position. In the open position, the ends of the contact members 45 which engaged the pairs of contacts 43, which are close together, lie between the more widely spaced contacts 44 and fail to engage them, leaving a substantial break distance. The contact members 45 may cross one another or may bridge the contacts 43, 44, as shown in Fig. 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB421919A GB140181A (en) | 1919-02-20 | 1919-02-20 | Improvements in or relating to electric switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB421919A GB140181A (en) | 1919-02-20 | 1919-02-20 | Improvements in or relating to electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB140181A true GB140181A (en) | 1920-03-25 |
Family
ID=9772971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB421919A Expired GB140181A (en) | 1919-02-20 | 1919-02-20 | Improvements in or relating to electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB140181A (en) |
-
1919
- 1919-02-20 GB GB421919A patent/GB140181A/en not_active Expired
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