GB603091A - Improved electrically driven power transmitting device - Google Patents
Improved electrically driven power transmitting deviceInfo
- Publication number
- GB603091A GB603091A GB7794/45A GB779445A GB603091A GB 603091 A GB603091 A GB 603091A GB 7794/45 A GB7794/45 A GB 7794/45A GB 779445 A GB779445 A GB 779445A GB 603091 A GB603091 A GB 603091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- load
- switch
- winding
- transmitting device
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
- B64C13/24—Transmitting means
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Multiple Motors (AREA)
Abstract
603,091. Control of D.C. motors. GENERAL MOTORS CORPORATION. March 28, 1945, No. 7794. Convention date, April 3, 1944. Addition to 583,232. [Class 38 (iii)] In the power-transmitting device described in the parent Specification, means are provided to maintain a substantially constant holding- effort by the electromagnetic clutch irrespectively of the direction in which the load is moved. The direct-current motor 20 is provided with field windings 21 and 22, and the electromagnetic clutch-winding consists of two sections 41 and 42, which may be of different resistances and of different gauges. When a selector switch 70 is moved to energize a relay 50, the field winding 21 is connected in series with the motor armature and both clutchwindings, and the load-carrying nut 26 ascends until it opens a limit-switch 73. Movement of the selector switch to close a relay 60 effects a series-connection of both motor field windings with the lower-resistance clutch-winding 41 across the motor armature, and the load descends until a limit-switch 76 is opened. At excessive lowering speeds the motor acts as a regenerative brake.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US603091XA | 1944-04-03 | 1944-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB603091A true GB603091A (en) | 1948-06-09 |
Family
ID=22028680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7794/45A Expired GB603091A (en) | 1944-04-03 | 1945-03-28 | Improved electrically driven power transmitting device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB603091A (en) |
-
1945
- 1945-03-28 GB GB7794/45A patent/GB603091A/en not_active Expired
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