GB589626A - Improvements in or relating to variable resistance devices - Google Patents
Improvements in or relating to variable resistance devicesInfo
- Publication number
- GB589626A GB589626A GB201245A GB201245A GB589626A GB 589626 A GB589626 A GB 589626A GB 201245 A GB201245 A GB 201245A GB 201245 A GB201245 A GB 201245A GB 589626 A GB589626 A GB 589626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- series
- armatures
- magnet
- variable resistance
- 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
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
Landscapes
- Adjustable Resistors (AREA)
Abstract
589,626. Magnetic switches; regulating switches. WEST & CO., Ltd., A., and JOHNSON, C. Jan. 25, 1945, No. 2012. [Class 38 (v)] A series of contacts, for a variable resistance, is progressively actuated by a common magnet 5 which is adapted to be moved in a path close to a series af armatures 4, respectively associated with' the contacts 2, so that the armatures and corresponding contacts are actuated as the magnet passes them. In Fig. 2, the magnet 5 is carried by an operating shaft 17, and a second magnet (not shown) is mounted diametrically opposite to the first. A disc 18 on shaft 17 has an arm 23 which engages two stops 22 to limit rotation of the magnets. The armatures 4 are mounted on levers 8 which are pivoted on brackets 9 and which engage the contacts 2. These contacts are carried on springs 7 fixed on an insulating cylinder 24 carrying a conducting ring 25 and a series of conducting segments 1. The contacts 2 are arranged in two series and are connected to tappings on two resistances 3. When two diametrically opposite armatures 4 are attracted, the corresponding contacts 2 engage ring 1 so that equal amounts of each winding 3 are put in series between terminals 6, Fig. 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201245A GB589626A (en) | 1945-01-25 | 1945-01-25 | Improvements in or relating to variable resistance devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201245A GB589626A (en) | 1945-01-25 | 1945-01-25 | Improvements in or relating to variable resistance devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB589626A true GB589626A (en) | 1947-06-25 |
Family
ID=9732040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB201245A Expired GB589626A (en) | 1945-01-25 | 1945-01-25 | Improvements in or relating to variable resistance devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB589626A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2561116A (en) * | 1947-08-07 | 1951-07-17 | Hof Zygmunt | Variable resistor |
-
1945
- 1945-01-25 GB GB201245A patent/GB589626A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2561116A (en) * | 1947-08-07 | 1951-07-17 | Hof Zygmunt | Variable resistor |
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