GB519536A - Improvements in and relating to multi-position electric switches - Google Patents
Improvements in and relating to multi-position electric switchesInfo
- Publication number
- GB519536A GB519536A GB2730438A GB2730438A GB519536A GB 519536 A GB519536 A GB 519536A GB 2730438 A GB2730438 A GB 2730438A GB 2730438 A GB2730438 A GB 2730438A GB 519536 A GB519536 A GB 519536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- plate
- fixed
- knob
- form part
- 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
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
- H01H19/60—Angularly-movable actuating part carrying no contacts
- H01H19/63—Contacts actuated by axial cams
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Switches With Compound Operations (AREA)
Abstract
519,536. Multi-position rotary switches. TURNER, C. A., and DIAMOND H. SWITCHES, Ltd. Sept. 19, 1938, No. 27304. [Class 38 (v)] Rotation of a knob 9 and spindle 8 to a selected position brings one or more slots 18 in a plate 17 opposite selected plungers 15' which thereupon move upwards and allow selected spring blade contacts 10 to engage co-operating contacts 13. The contacts 10 form part of a spider, Fig. 6, connected to a central terminal 21 so that rotation of the knob brings the terminal into electrical connection with selected circuits. The individual switching positions are determined by spring balls 5 engaging depressions between teeth in a cam 4, and the plate 17 may form part of a block having cam surfaces which press two blade contacts 22, 23 out of engagement with fixed contacts 24, 25 in the main circuit. The fixed contacts 13 may be connected to tappings on a resistance or transformer. The switch may be fixed to a panel by hooklike ends of a plate 30.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2730438A GB519536A (en) | 1938-09-19 | 1938-09-19 | Improvements in and relating to multi-position electric switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2730438A GB519536A (en) | 1938-09-19 | 1938-09-19 | Improvements in and relating to multi-position electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB519536A true GB519536A (en) | 1940-03-29 |
Family
ID=10257395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2730438A Expired GB519536A (en) | 1938-09-19 | 1938-09-19 | Improvements in and relating to multi-position electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB519536A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0004420A2 (en) * | 1978-03-17 | 1979-10-03 | AMP INCORPORATED (a New Jersey corporation) | Coded electric switch |
-
1938
- 1938-09-19 GB GB2730438A patent/GB519536A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0004420A2 (en) * | 1978-03-17 | 1979-10-03 | AMP INCORPORATED (a New Jersey corporation) | Coded electric switch |
EP0004420A3 (en) * | 1978-03-17 | 1979-10-31 | Amp Incorporated | Coded electric switch |
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