GB576718A - Improvements in automatic speed control apparatus for eddy current slip clutches - Google Patents
Improvements in automatic speed control apparatus for eddy current slip clutchesInfo
- Publication number
- GB576718A GB576718A GB3128/42A GB312842A GB576718A GB 576718 A GB576718 A GB 576718A GB 3128/42 A GB3128/42 A GB 3128/42A GB 312842 A GB312842 A GB 312842A GB 576718 A GB576718 A GB 576718A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- excitation
- clutch
- eddy
- march
- 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
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/0016—Control of angular speed of one shaft without controlling the prime mover
- H02P29/0027—Controlling a clutch between the prime mover and the load
Abstract
576,718. Automatic and manual control systems for eddy-current clutch drives. WINTHER, M. P. March 10, 1942, No. 3128. Convention date, March 19, 1941. [Classes 35 and 38 (iv)] Speed.-To overcome hysteresis effects in an eddy-current clutch having a variable excitation each change in excitation is accompanied by a temporary excessive change in the same sense. To maintain the speed of the output shaft constant a governor mechanism 21 actuates a lever 27 to vary the number of short circuited sections of resistance 33 in the excitation circuit of the clutch 3. An auxiliary lever, Fig. 2, (not shown) restrained by resilient connection to a fixed dashpot co-operates with the lever 27 to close temporarily a snap action switch 59 or 63, according to its direction of motion, whereby a relay 60 or 58 is operated for a short period to short circuit all resistance or to open the excitation circuit whenever the lever 27 changes its position. The Specification as open to inspection under Sect. 91, includes manual clutch controls. This subject matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US576718XA | 1941-03-19 | 1941-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB576718A true GB576718A (en) | 1946-04-17 |
Family
ID=22012035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3128/42A Expired GB576718A (en) | 1941-03-19 | 1942-03-10 | Improvements in automatic speed control apparatus for eddy current slip clutches |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE576718A (en) |
| FR (1) | FR908712A (en) |
| GB (1) | GB576718A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2605313A (en) * | 1946-03-09 | 1952-07-29 | Vaughan Crane Company Ltd | Electric crane and the like |
| EP1207422A2 (en) * | 2000-11-20 | 2002-05-22 | Fuji Photo Film Co., Ltd. | Method and apparatus for winding a photographic film and photographic film manufacturing apparatus |
-
1942
- 1942-03-10 GB GB3128/42A patent/GB576718A/en not_active Expired
- 1942-04-27 FR FR908712D patent/FR908712A/en not_active Expired
-
1959
- 1959-03-14 BE BE576718A patent/BE576718A/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2605313A (en) * | 1946-03-09 | 1952-07-29 | Vaughan Crane Company Ltd | Electric crane and the like |
| EP1207422A2 (en) * | 2000-11-20 | 2002-05-22 | Fuji Photo Film Co., Ltd. | Method and apparatus for winding a photographic film and photographic film manufacturing apparatus |
| US7083137B2 (en) | 2000-11-20 | 2006-08-01 | Fuji Photo Film Co., Ltd. | Film winding method, film winding apparatus, and film manufacturing apparatus |
| EP1207422B1 (en) * | 2000-11-20 | 2007-04-04 | FUJIFILM Corporation | Method of winding a photographic film |
| EP1787930A1 (en) * | 2000-11-20 | 2007-05-23 | FUJIFILM Corporation | Method and apparatus for winding a photographic film and photographic film manufacturing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| BE576718A (en) | 1959-07-01 |
| FR908712A (en) | 1946-04-17 |
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