GB863942A - Improvements in or relating to elevator systems - Google Patents
Improvements in or relating to elevator systemsInfo
- Publication number
- GB863942A GB863942A GB10029/58A GB1002958A GB863942A GB 863942 A GB863942 A GB 863942A GB 10029/58 A GB10029/58 A GB 10029/58A GB 1002958 A GB1002958 A GB 1002958A GB 863942 A GB863942 A GB 863942A
- Authority
- GB
- United Kingdom
- Prior art keywords
- floor
- parking floor
- parking
- period
- calls
- 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
- B66B1/14—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
- B66B1/18—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for storing pulses controlling the movements of several cars or cages
- B66B1/20—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for storing pulses controlling the movements of several cars or cages and for varying the manner of operation to suit particular traffic conditions, e.g. "one-way rush-hour traffic"
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
Abstract
863,942. Lifts. WESTINGHOUSE ELECTRIC CORPORATION. March 28, 1958 [April 4, 1957], No. 10029/58. Drawings to Specification. Class 78 (3). An automatic lift system is provided with a circuit which changes the parking floor in accordance with the actual or anticipated demand on the system. With the lower terminal floor selected as the parking floor, the registration of a predetermined number of down calls in a given time interval causes the upper terminal floor to become the parking floor for a predetermined period (e.g. 4 minutes) at the expiration of which the lower terminal floor again becomes the parking floor. If during this period the number of down calls registered in the given time interval again reaches the predetermined number, the period is extended by a further 4 minutes. The counting of the calls is effected by a rotary stepping switch (Fig. 3, not shown) which is moved one step for each down call registered, and is returned to the first contact by a timing relay at the expiration of the given time interval; the change of parking floor being effected if the switch reaches a predetermined contact before it is homed. A similar circuit changes the parking floor from the upper to the lower terminal floor in the event of a predetermined number of up calls being registered in the given period when the upper terminal floor has been selected as the parking floor. A clock-operated switch is also provided to alter the selection of the parking floor in accordance with the predetermined anticipated demand on the system.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US863942XA | 1957-04-04 | 1957-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB863942A true GB863942A (en) | 1961-03-29 |
Family
ID=22198287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10029/58A Expired GB863942A (en) | 1957-04-04 | 1958-03-28 | Improvements in or relating to elevator systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB863942A (en) |
-
1958
- 1958-03-28 GB GB10029/58A patent/GB863942A/en not_active Expired
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