GB749522A - Improvements in or relating to protection equipment for electric motors - Google Patents
Improvements in or relating to protection equipment for electric motorsInfo
- Publication number
- GB749522A GB749522A GB1664253A GB1664253A GB749522A GB 749522 A GB749522 A GB 749522A GB 1664253 A GB1664253 A GB 1664253A GB 1664253 A GB1664253 A GB 1664253A GB 749522 A GB749522 A GB 749522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- switch
- brake
- lever
- control switch
- 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
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1023—Magnetically influenced friction brakes using electromagnets
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
749,522. Controllers. SUTCLIFFE, Ltd., R., HILL, D. S., JOHNSON, I., and METCALFE, P. N. March 30, 1955 [June 16, 1953], No 16642/53. Class 38(3) A control switch 13 for an electric motor 1 is resiliently biased to an open position and is closed when an operating lever 2 is actuated to release a brake for the motor. The actuating means for the control switch comprise an adjustable link 6 pivoted on the member 2 and coupled to lever 8 which is secured to spindle 9 in a cable-operating device 10. Longitudinal movement of the cable 11 resulting from upward movement of the brake lever 2 causes the switch 13 to close. The control switch is connected in parallel with another switch which is closed when the motor is initially switched on and is opened at a predetermined period after the motor has been energized. Thus, if the brake is not released within the predetermined period, then the motor is disconnected. Correct operation of the brake and the associated mechanical linkage, however, allows the switch 13 to maintain the motor circuit when the time-controlled contacts of the other switch are opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1664253A GB749522A (en) | 1953-06-16 | 1953-06-16 | Improvements in or relating to protection equipment for electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1664253A GB749522A (en) | 1953-06-16 | 1953-06-16 | Improvements in or relating to protection equipment for electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB749522A true GB749522A (en) | 1956-05-30 |
Family
ID=10080999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1664253A Expired GB749522A (en) | 1953-06-16 | 1953-06-16 | Improvements in or relating to protection equipment for electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB749522A (en) |
-
1953
- 1953-06-16 GB GB1664253A patent/GB749522A/en not_active Expired
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