GB189594A - Improvements in or connected with electrical control systems particularly adapted for lifts, haulage gear and the like - Google Patents
Improvements in or connected with electrical control systems particularly adapted for lifts, haulage gear and the likeInfo
- Publication number
- GB189594A GB189594A GB2630221A GB2630221A GB189594A GB 189594 A GB189594 A GB 189594A GB 2630221 A GB2630221 A GB 2630221A GB 2630221 A GB2630221 A GB 2630221A GB 189594 A GB189594 A GB 189594A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- circuit
- lifts
- switch
- haulage gear
- 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
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
189,594. Electric Control, Ltd., and Ellefsen, O. Oct. 5, 1921. Systems for continuous-current motors only; electric braking.-Motor control systems for lifts, haulage gear and the like, are arranged to reduce the speed of the motor, preparatory to stopping the lift &c. at any desired point, by momentari y disconnecting the motor from the supply, then reconnecting it in the reverse direction, and finally disconnecting it again. In the arrangement shown in Fig. 1, this is effected by a tappetoperated switch D adapted to change connection from a forward switch magnet E to a reverse switch magnet F with a momentary intervening break of circuit, in conjunction with a starting relay 3 controlled by a push-button G and subject to a retarded return. In the modification shown in Fig. 2, each forward and reverse switch magnet is connected to two separated contacts 3, 3<1>, so as to produce a momentary break of circuit followed by a remake in the same direction, after which, if the movement of the lift continues, the change-over is made as before. In other modifications, the movement of the tappet switch applies a brake and introduces resistance into the motor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2630221A GB189594A (en) | 1921-10-05 | 1921-10-05 | Improvements in or connected with electrical control systems particularly adapted for lifts, haulage gear and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2630221A GB189594A (en) | 1921-10-05 | 1921-10-05 | Improvements in or connected with electrical control systems particularly adapted for lifts, haulage gear and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB189594A true GB189594A (en) | 1922-12-07 |
Family
ID=10241489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2630221A Expired GB189594A (en) | 1921-10-05 | 1921-10-05 | Improvements in or connected with electrical control systems particularly adapted for lifts, haulage gear and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB189594A (en) |
-
1921
- 1921-10-05 GB GB2630221A patent/GB189594A/en not_active Expired
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