GB573239A - Improvements in and relating to electric eddy current driving mechanisms - Google Patents
Improvements in and relating to electric eddy current driving mechanismsInfo
- Publication number
- GB573239A GB573239A GB485942A GB485942A GB573239A GB 573239 A GB573239 A GB 573239A GB 485942 A GB485942 A GB 485942A GB 485942 A GB485942 A GB 485942A GB 573239 A GB573239 A GB 573239A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clutches
- speed
- drive
- excitation
- gun
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/011—Automatic controllers electric details of the correcting means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
573,239. Gun mountings. BRISTOL AEROPLANE CO., Ltd., PONTING, R., HEENAN & FROUDE, Ltd., and WALKER, G. H. April 13, 1942, No. 4859. [Class 92 (i)] [Also in Group XXXV] Two electromagnetic clutches 22, 25 of the eddy current type are arranged to couple a driven shaft 14 to a driving shaft 13 so that by selective excitation of the clutches the shaft 14 may rotate in opposite directions. The invention is described as applied to the mechanism for rotating an aircraft gun turret and elevating the gun. Rheostats 33, 37 in series with the respective exciting windings 122, 125 of the clutches are jointly operable to increase the excitation of one and reduce that of the other at the same time, so that the balanced drive of the clutches is disturbed to produce a drive at a desired speed in a required direction ; after a movement of the controller to an adjustable degree the circuit of one clutch may be opened. The speed of the drive may be automatically limited as by a generator 29 geared to the driven shaft and having a constant polarity, which is opposed to that of the source of exciting current ; other kinds of speed' governor may be used, for example a centrifugal device increasing a resistance in the exciting circuit as speed increases. A resistance 34 common to both excitation circuits may adjust both excitations in common.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB485942A GB573239A (en) | 1942-04-13 | 1942-04-13 | Improvements in and relating to electric eddy current driving mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB485942A GB573239A (en) | 1942-04-13 | 1942-04-13 | Improvements in and relating to electric eddy current driving mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB573239A true GB573239A (en) | 1945-11-13 |
Family
ID=9785153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB485942A Expired GB573239A (en) | 1942-04-13 | 1942-04-13 | Improvements in and relating to electric eddy current driving mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB573239A (en) |
-
1942
- 1942-04-13 GB GB485942A patent/GB573239A/en not_active Expired
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