GB419835A - Improvements in or relating to electro-magnetic apparatus - Google Patents
Improvements in or relating to electro-magnetic apparatusInfo
- Publication number
- GB419835A GB419835A GB2136933A GB2136933A GB419835A GB 419835 A GB419835 A GB 419835A GB 2136933 A GB2136933 A GB 2136933A GB 2136933 A GB2136933 A GB 2136933A GB 419835 A GB419835 A GB 419835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stator
- gap
- movable
- brake
- release
- 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
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
- H02K7/125—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking magnetically influenced
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
419,835. Controlling motors. FLEINER, M., 5, Gempenstrasse, Basle, Switzerland. July 29, 1933, No. 21369. [Class 35.] Yokes.-The stator of a squirrel-cage motor or other machine without salient poles is formed with a gap or other region of high reluctance into or against which a movable portion is drawn when the current is switched on so as to release a brake, or operate a low voltage cut-out or a starting rheostat, a delay-action device being provided where necessary. Figs. 1 and 2 show a stator 1 formed with a gap 4 and a pivoted portion 5. To prevent the gap 4 from being short-circuited by the casing 8 the latter is separated from the stator by non-magnetic pieces 9 or may be formed with a gap 10. The member 5 may be connected to the device to be operated by a toggle, but in the form shown is provided with a cam-surface 12 operating a lever 14 to move the rotor longitudinally and thus release it from a brake-member 19. Instead of a gap the stator may be formed with a narrow portion, the flux across which may be decreased by shortcircuited windings, which may be interrupted by the movable member. To concentrate flux on the portion of the stator where the movable member is situated radial slots are formed in the stator. Arrangements with two movable members and a member sliding longitudinally are also described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2136933A GB419835A (en) | 1933-07-29 | 1933-07-29 | Improvements in or relating to electro-magnetic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2136933A GB419835A (en) | 1933-07-29 | 1933-07-29 | Improvements in or relating to electro-magnetic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB419835A true GB419835A (en) | 1934-11-20 |
Family
ID=10161757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2136933A Expired GB419835A (en) | 1933-07-29 | 1933-07-29 | Improvements in or relating to electro-magnetic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB419835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2710359A (en) * | 1952-09-17 | 1955-06-07 | Jack & Heintz Inc | Automatic clutch and brake |
| US2813206A (en) * | 1956-03-19 | 1957-11-12 | Ford Motor Co | Integral positive engagement starter |
| WO2000039912A1 (en) * | 1998-12-28 | 2000-07-06 | Robert Bosch Gmbh | Electric motor with electromagnetic brake |
-
1933
- 1933-07-29 GB GB2136933A patent/GB419835A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2710359A (en) * | 1952-09-17 | 1955-06-07 | Jack & Heintz Inc | Automatic clutch and brake |
| US2813206A (en) * | 1956-03-19 | 1957-11-12 | Ford Motor Co | Integral positive engagement starter |
| WO2000039912A1 (en) * | 1998-12-28 | 2000-07-06 | Robert Bosch Gmbh | Electric motor with electromagnetic brake |
| US6731034B1 (en) | 1998-12-28 | 2004-05-04 | Robert Bosch Gmbh | Electric motor with electromagnetic brake |
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