GB625395A - Improvements in or relating to the construction of small synchronous electric motors - Google Patents
Improvements in or relating to the construction of small synchronous electric motorsInfo
- Publication number
- GB625395A GB625395A GB2045047A GB2045047A GB625395A GB 625395 A GB625395 A GB 625395A GB 2045047 A GB2045047 A GB 2045047A GB 2045047 A GB2045047 A GB 2045047A GB 625395 A GB625395 A GB 625395A
- Authority
- GB
- United Kingdom
- Prior art keywords
- teeth
- rotor
- stator
- concentric
- situated
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/04—Synchronous motors for single-phase current
- H02K19/06—Motors having windings on the stator and a variable-reluctance soft-iron rotor without windings, e.g. inductor motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
625,395. A.C. motors. SHARMAN, G. A., and HOLMAN, R. E. July 29, 1947, No. 20450. [Class 35] The stator of a synchronous motor for clocks &c. comprises two concentric radially spaced rings of axially extending pole teeth 6, 4 situated at one end of, but connected to either end of the core 2 of an energizing coil 1, the rotor having at least one ring of axially extending pole teeth 10 concentric with those on the stator. In the form shown, a soft iron rotor 9 has two concentric rings of mutually staggered teeth 10, 11 situated inside the corresponding stator teeth 6, 4 which are also mutually staggered. The rotor is shown pressed from a single disc, but in a modification a pair of discs each having one ring of teeth are secured together by a hollow rivet which accommodates the shaft. For self-starting motors, the rotor is polarized by a flat annular magnet secured between the teethed discs, the correct direction of rotation being ensured by a snail cam and stop. The rotor teeth may be situated outside or in line with the corresponding stator teeth and a manual starting device 12 is described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2045047A GB625395A (en) | 1947-07-29 | 1947-07-29 | Improvements in or relating to the construction of small synchronous electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2045047A GB625395A (en) | 1947-07-29 | 1947-07-29 | Improvements in or relating to the construction of small synchronous electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB625395A true GB625395A (en) | 1949-06-27 |
Family
ID=10146149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2045047A Expired GB625395A (en) | 1947-07-29 | 1947-07-29 | Improvements in or relating to the construction of small synchronous electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB625395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179216A (en) * | 1963-03-27 | 1965-04-20 | Tetro Roland George | Directional drive control for synchronous motor |
-
1947
- 1947-07-29 GB GB2045047A patent/GB625395A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179216A (en) * | 1963-03-27 | 1965-04-20 | Tetro Roland George | Directional drive control for synchronous motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1472006A (en) | Rotary magnetic couplings | |
| US2437142A (en) | Shaded-pole synchronous motor | |
| ES8304380A1 (en) | Self-starting two-pole single-phase synchronous motor | |
| US2250395A (en) | Synchronous electric motor | |
| GB786751A (en) | Synchronous motor | |
| GB625395A (en) | Improvements in or relating to the construction of small synchronous electric motors | |
| GB1389983A (en) | Electric synchronous motor | |
| US1995726A (en) | Clock setting device | |
| GB614091A (en) | Improvements relating to dynamo-electric machines, electro-magnetic slip couplings, electro-magnetic brakes and the like | |
| GB959502A (en) | Improvements in or relating to electric motors | |
| JPS6477449A (en) | Rotor structure for synchronous motor | |
| JPS57180363A (en) | Motor | |
| GB717830A (en) | An improved a.c. motor or generator | |
| GB884471A (en) | A single-phase electric motor | |
| JPS5691667A (en) | Small motor containing frequency generator | |
| SU677043A1 (en) | Inductor generator | |
| GB876576A (en) | Improvements in or relating to unidirectionally self-starting synchronous motors | |
| GB505569A (en) | Improvements in or relating to electric motors | |
| GB650915A (en) | Improvements in or relating to synchronous electric motors | |
| GB589526A (en) | Improvements in alternators | |
| GB604753A (en) | A combined permanent-magnet type electric motor and generator | |
| GB661569A (en) | Improvements relating to a.c. electric dynamos | |
| GB687029A (en) | Improvements in or relating to electric motor constructions | |
| GB633446A (en) | Improvements in or relating to driving machines comprising a centrifugal clutch and an electric motor | |
| GB400435A (en) | Improvements in synchronous alternating current motors particularly for talking-machine driving |