GB671065A - Improvements in and relating to control mechanisms for electric motor control gear - Google Patents
Improvements in and relating to control mechanisms for electric motor control gearInfo
- Publication number
- GB671065A GB671065A GB1895549A GB1895549A GB671065A GB 671065 A GB671065 A GB 671065A GB 1895549 A GB1895549 A GB 1895549A GB 1895549 A GB1895549 A GB 1895549A GB 671065 A GB671065 A GB 671065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- chain
- shaft
- wheel
- electric motor
- 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
- 230000007246 mechanism Effects 0.000 title 1
- 238000005096 rolling process Methods 0.000 abstract 1
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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
- H02P1/04—Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
- H02P1/06—Manually-operated multi-position starters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Handcart (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
671,065. Controllers. ENGLISH ELECTRIC CO., Ltd. July 18, 1950. [July 19, 1949] No. 18955/49. Class 38 (iii). Coarse adjustment of a rheostat used for electric motor control is effected when a lever 3 is rotated to operate a chain 8, a bevel gear wheel 10 meshing with wheel 9 which is fixed to the operating-shaft 6. The lever 3 is freely journalled in a fork 5 which is in turn free to rotate on shaft 6 and which carries a balance weight 12. Fine adjustment is afforded by limited operation of the chain when the lever 3 is moved, without rotating it, in either direction in a quadrant 2. The lever may then be released and returned to a central position without operating the chain 8, the bevel gear wheel 10 idling over the wheel 9. The application to the individual control of a number of motors in a rolling mill drive is referred to. The rheostat may be operated directly from the shaft 6, through other mechanical drives, or through a servo system. The weight 12 may be replaced by a spring. Position-indicating devices may be carried on the knob 11 or the chain 8. Specification 621,067 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1895549A GB671065A (en) | 1949-07-19 | 1949-07-19 | Improvements in and relating to control mechanisms for electric motor control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1895549A GB671065A (en) | 1949-07-19 | 1949-07-19 | Improvements in and relating to control mechanisms for electric motor control gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB671065A true GB671065A (en) | 1952-04-30 |
Family
ID=10121315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1895549A Expired GB671065A (en) | 1949-07-19 | 1949-07-19 | Improvements in and relating to control mechanisms for electric motor control gear |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB671065A (en) |
-
1949
- 1949-07-19 GB GB1895549A patent/GB671065A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1274828A (en) | Shaft rotating device | |
| GB790739A (en) | Improvements in or relating to auto-transformer tap changers | |
| GB1206932A (en) | Improvements in rotary actuators | |
| GB671065A (en) | Improvements in and relating to control mechanisms for electric motor control gear | |
| US2263371A (en) | Driving means | |
| GB1497088A (en) | Valve device for gases | |
| GB631947A (en) | Improvements in and relating to mechanisms for limiting the feed motion in a lathe or other machine tool | |
| GB514330A (en) | Improvements in or relating to electric motor controllers | |
| GB988764A (en) | Improvements in or relating to a variable ratio gear and control mechanism therefor | |
| GB584450A (en) | Electrically operated pitch changing mechanism for screw propellers | |
| GB647863A (en) | Improvements relating to power transmission mechanisms | |
| GB800113A (en) | Adjustable throw-guiding device for use on rotary snow-ploughs | |
| GB790067A (en) | Electrically operated circular indexing table | |
| US2922939A (en) | Position control servosystem | |
| GB339389A (en) | Differential gear for driving spindles of wireless apparatus independently from the direction of rotation of the control knob | |
| GB805424A (en) | Electrically operated jack-like actuators | |
| GB820041A (en) | Improvements relating to toy aeroplanes | |
| GB767893A (en) | Arrangement for checking the speed of motor cars and the like machines | |
| GB354813A (en) | Improvements in or relating to electric motor driving mechanisms for valves and other devices | |
| GB380350A (en) | Improvements in and relating to valve operating mechanism | |
| GB758636A (en) | Improvements in or relating to variable ratio movement transmission mechanism | |
| GB664477A (en) | Improvements in automatic reversing arrangements for electric motors | |
| GB599662A (en) | Improvements relating to guards for grinding wheels and the like | |
| GB570020A (en) | Improved reversing gear for electrically-driven rotary shafts and the like | |
| GB514953A (en) | Improvements in and relating to speed-controlling devices for machinery |