GB817044A - Improvements relating to electric contactor devices - Google Patents
Improvements relating to electric contactor devicesInfo
- Publication number
- GB817044A GB817044A GB34557A GB34557A GB817044A GB 817044 A GB817044 A GB 817044A GB 34557 A GB34557 A GB 34557A GB 34557 A GB34557 A GB 34557A GB 817044 A GB817044 A GB 817044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- springs
- switch
- restraining
- spring
- 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
- 101700078171 KNTC1 Proteins 0.000 abstract 4
- 230000000452 restraining Effects 0.000 abstract 3
- 206010049979 Airway complication of anaesthesia Diseases 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Push-Button Switches (AREA)
Abstract
817,044. Electrically-tripped switches. BRITISH THOMSON-HOUSTON CO. Ltd. Dec. 9, 1957 [Jan. 3, 1957], No. 345/57. Class 38 (5). A high-speed switch comprising an axiallymovable rod 1, carrying a contact bridge 21 co-operating with fixed contacts 22, is latched to the " open " position (as shown) against the upward force of springs 4, 20 by a restraining member 8, axially aligned with the rod 1, and a number of balls 17 confined between the rod 1, the member 8 and a tubular housing 18 having a reduced bore at 19. Thus the restraining force on the member 8, provided by an energized winding 12 coacting with a plunger 10 resiliently connected to the member 8 by a spring 25, need only be a small proportion of the upward force exerted by the springs 4, 20. To close the switch a bucking coil 16, opposing the main coil 12, is energized, thereby freeing the restraining member 8 and allowing the springs to close the contacts. The switch is reset by admitting compressed air to a cylinder 3 to force down a piston 2 fixed to the rod 1. The member 8 is then returned to the position shown by a spring 24.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB817044A true GB817044A (en) | 1959-07-22 |
Family
ID=1593327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34557A Expired GB817044A (en) | 1957-01-03 | Improvements relating to electric contactor devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB817044A (en) |
-
1957
- 1957-01-03 GB GB34557A patent/GB817044A/en not_active Expired
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