GB417483A - Improvements in or relating to electric tumbler switches - Google Patents
Improvements in or relating to electric tumbler switchesInfo
- Publication number
- GB417483A GB417483A GB2805733A GB2805733A GB417483A GB 417483 A GB417483 A GB 417483A GB 2805733 A GB2805733 A GB 2805733A GB 2805733 A GB2805733 A GB 2805733A GB 417483 A GB417483 A GB 417483A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tumbler
- bar
- contacts
- switch
- rocker
- 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
- H01H23/28—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions
Landscapes
- Pyrane Compounds (AREA)
Abstract
417,483. Tumbler switches. LUNDBERG & SONS, Ltd., A. P., and PEGG, G., 477, Liverpool Road, Holloway, London. Oct. 11, 1933, No. 28057. [Class 38 (v).] A three-position tumbler switch having a central off position designed for use as a reversing switch has two opposite groups of terminals A, B, C and D, E, F connected to fixed clip contacts 13. Pivoted on the bridge 15 are contact rockers 18, 19 adapted to be engaged by a tumbler 17 so that when the tumbler is moved to the left the contacts on rocker 19 are moved, and when the tumbler is moved to the right the contacts on rocker 18 are moved, the central position of the tumbler giving an off position for both sets of contacts. Rocker 18 carries three contact bars 21 each having a single blade 25, 27 so that on moving the tumbler to the right the two sets of contacts are bridged straight across. The rocker 19 carries two contact bars 31, 32, the bar 31 having a single blade at each end. The bar 32 has a pair of blades at each end, the members of each pair being connected together, but the two pairs being insulated from each other. Thus on moving the tumbler to the left the bar 31 bridges contacts C, F while the pairs of blades on bar 32 connects contacts A, B and D, E. Diagrams are given showing how the switch can be used for reversing the connections of a three-phase A.C. motor and of shunt and series wound D.C. motors. In a modification, the rockers 18, 19 each carry two bars and each bar is provided with a pair of blades at one end and a single blade at the other end, all three blades being connected together. The pairs of bars are arranged so as to place the single blade of one bar adjacent the double blade of the other bar. This is stated to be useful for reversing a split-phase A.C. motor in combination with a centrifugal switch. Also it can be used for reversing a shunt wound D.C. motor in which case the motor is isolated from both poles of the supply in the off position of the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2805733A GB417483A (en) | 1933-10-11 | 1933-10-11 | Improvements in or relating to electric tumbler switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2805733A GB417483A (en) | 1933-10-11 | 1933-10-11 | Improvements in or relating to electric tumbler switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB417483A true GB417483A (en) | 1934-10-05 |
Family
ID=10269554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2805733A Expired GB417483A (en) | 1933-10-11 | 1933-10-11 | Improvements in or relating to electric tumbler switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB417483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760695C (en) * | 1941-04-13 | 1951-08-16 | Busch Jaeger Luedenscheider Me | Toggle switch with three switch positions |
-
1933
- 1933-10-11 GB GB2805733A patent/GB417483A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760695C (en) * | 1941-04-13 | 1951-08-16 | Busch Jaeger Luedenscheider Me | Toggle switch with three switch positions |
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