GB862096A - Improvements in or relating to the control of electric motors - Google Patents
Improvements in or relating to the control of electric motorsInfo
- Publication number
- GB862096A GB862096A GB1772758A GB1772758A GB862096A GB 862096 A GB862096 A GB 862096A GB 1772758 A GB1772758 A GB 1772758A GB 1772758 A GB1772758 A GB 1772758A GB 862096 A GB862096 A GB 862096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- arm
- contacts
- actuation
- standstill
- 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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
862,096. Control of motors; actuation of switches. MACHINE SHOP EQUIPMENT Ltd. Feb. 13, 1959 [June 3, 1958], No. 17727/58. Classes 38 (3) and 38 (5). When an electric motor is operating in a forward direction, a cam 16 maintains a resilient arm 14 out of contact with a plunger 13 so that contacts 11, 12 remain closed. The motor is stopped by reversing its supply, a relay 18 being energized by actuation of a push-button to maintain the reverse-circuit intact until the motor is braked to a standstill. This causes arm 14 to engage in slot 17, and if the motor tends to rotate in the reverse direction, the arm 14 depresses the plunger 13 to open the contacts 11, 12. The relay 18 is then de-energized to break the circuit of the motor. When the motor is restarted in the forward direction, the contacts 11, 12 are automatically reclosed. In another arrangement, the arm 14 co-operates with the underside of an annular flange during forward operation, and, when the motor approaches a standstill, the arm rides up an inclined slot in the flange and on to the upper surface. This causes actuation of the trip switch and consequent disconnection of the motor, Figs. 3, 4 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1772758A GB862096A (en) | 1958-06-03 | 1958-06-03 | Improvements in or relating to the control of electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1772758A GB862096A (en) | 1958-06-03 | 1958-06-03 | Improvements in or relating to the control of electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB862096A true GB862096A (en) | 1961-03-01 |
Family
ID=10100171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1772758A Expired GB862096A (en) | 1958-06-03 | 1958-06-03 | Improvements in or relating to the control of electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB862096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3300701A (en) * | 1963-11-29 | 1967-01-24 | Bell Telephone Labor Inc | Electric motor control apparatus |
-
1958
- 1958-06-03 GB GB1772758A patent/GB862096A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3300701A (en) * | 1963-11-29 | 1967-01-24 | Bell Telephone Labor Inc | Electric motor control apparatus |
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