GB619089A - Improvements in or relating to electromagnetically operated starter switches for single phase electric motors - Google Patents
Improvements in or relating to electromagnetically operated starter switches for single phase electric motorsInfo
- Publication number
- GB619089A GB619089A GB3418546A GB3418546A GB619089A GB 619089 A GB619089 A GB 619089A GB 3418546 A GB3418546 A GB 3418546A GB 3418546 A GB3418546 A GB 3418546A GB 619089 A GB619089 A GB 619089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- winding
- switch
- armature
- electric motors
- 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
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/34—Means for adjusting limits of movement; Mechanical means for adjusting returning force
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Motor And Converter Starters (AREA)
Abstract
619,089. Electric motors. BISSET INDUSTRIES, Ltd., and ANDREWS, R. S. LEES-. Nov. 18, 1946, No. 34185. [Class 35] [Also in Group XXXVII] An electromagnetic switch for use as a starter switch for fractional H.P. squirrel-cage motors has an armature 10 biassed by a spring 13 so that a projection 15 normally holds a spring contact 18 out of engagement with a fixed contact 19. The winding 8 is connected in series with the main field winding of the motor and the current through it is at a maximum when current is first switched on. The electromagnet therefore attracts the armature 10 to its pole 5a allowing the contacts 18, 19 to close to complete a circuit to the starter winding of the motor. As the motor speeds up the current through the field winding falls, the armature is released and the circuit to the starter winding broken. The switch is adapted to be mounted within the motor housing the shaft of the motor passing through a tube 22 in the switch carrier plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3418546A GB619089A (en) | 1946-11-18 | 1946-11-18 | Improvements in or relating to electromagnetically operated starter switches for single phase electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3418546A GB619089A (en) | 1946-11-18 | 1946-11-18 | Improvements in or relating to electromagnetically operated starter switches for single phase electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB619089A true GB619089A (en) | 1949-03-03 |
Family
ID=10362444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3418546A Expired GB619089A (en) | 1946-11-18 | 1946-11-18 | Improvements in or relating to electromagnetically operated starter switches for single phase electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB619089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2831934A (en) * | 1955-03-21 | 1958-04-22 | Gen Electric | Potential relay |
-
1946
- 1946-11-18 GB GB3418546A patent/GB619089A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2831934A (en) * | 1955-03-21 | 1958-04-22 | Gen Electric | Potential relay |
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