GB1162535A - Improvements in or relating to Lift Control Systems. - Google Patents
Improvements in or relating to Lift Control Systems.Info
- Publication number
- GB1162535A GB1162535A GB3727166A GB3727166A GB1162535A GB 1162535 A GB1162535 A GB 1162535A GB 3727166 A GB3727166 A GB 3727166A GB 3727166 A GB3727166 A GB 3727166A GB 1162535 A GB1162535 A GB 1162535A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counter
- contacts
- lift control
- signal
- stable elements
- 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
- B66B1/16—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 a single car or cage
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Relay Circuits (AREA)
Abstract
1,162,535. Lift control systems. EXPRESS LIFT CO. Ltd. 10 Aug., 1967 [19 Aug., 1966], No. 37271/66. Heading B8L. [Also in Division G4] In a lift control system in which the floor selector comprises an electronic counter 2 consisting of bi-stable elements J1 . . . J5 using only static components such as transistors, a memory unit 3 is associated with the counter to restore it to its original state following an interruption of the power supply. The memory unit consists of reed relays R1 . . . R5 which are magnetically latched in either operated condition, their contacts R1C ... R5C being connected to " set " inputs 6 of the bi-stable elements. Upon resumption of the supply those bi-stable elements whose associated contacts were open are first restored by a signal to " set " inputs 7; after a delay determined by Z3, C3 this signal is removed, allowing restoration of those elements whose contacts were closed, and after a further delay (Z4, C4) the signal to all the contacts is removed to allow normal operation. The counter is operated via NAND/NOR gates by signals which indicate whether the car is running, its direction, and the passing of landings. At terminal floors limit switches set the counter to the appropriate state, should it have fallen out of step. The counter is connected to a " de-coding unit " 4 which operates the lift control or indicating circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3727166A GB1162535A (en) | 1966-08-19 | 1966-08-19 | Improvements in or relating to Lift Control Systems. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3727166A GB1162535A (en) | 1966-08-19 | 1966-08-19 | Improvements in or relating to Lift Control Systems. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1162535A true GB1162535A (en) | 1969-08-27 |
Family
ID=10395115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3727166A Expired GB1162535A (en) | 1966-08-19 | 1966-08-19 | Improvements in or relating to Lift Control Systems. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1162535A (en) |
-
1966
- 1966-08-19 GB GB3727166A patent/GB1162535A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |