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GB545783A - Improvements relating to lift control systems - Google Patents

Improvements relating to lift control systems

Info

Publication number
GB545783A
GB545783A GB1737940A GB1737940A GB545783A GB 545783 A GB545783 A GB 545783A GB 1737940 A GB1737940 A GB 1737940A GB 1737940 A GB1737940 A GB 1737940A GB 545783 A GB545783 A GB 545783A
Authority
GB
United Kingdom
Prior art keywords
control systems
improvements relating
lift control
lift
landings
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
Application number
GB1737940A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOHN READ FOTHERGILL
Original Assignee
JOHN READ FOTHERGILL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JOHN READ FOTHERGILL filed Critical JOHN READ FOTHERGILL
Priority to GB1737940A priority Critical patent/GB545783A/en
Publication of GB545783A publication Critical patent/GB545783A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/46—Adaptations of switches or switchgear
    • B66B1/48—Adaptations of mechanically-operated limit switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Types And Forms Of Lifts (AREA)
  • Elevator Control (AREA)

Abstract

545,783. Control circuits for lifts. FOTHERGILL, J. R. Dec. 6, 1940, No. 17379. Drawings to Specification. [Class 40 (i)] The call button circuits are disabled when the lift is between landings by means of switch contacts carried by the cage which are controlled by a ramp at each landing or by means of contacts under the control of the usual floor selector or other device which moves in correspondence with the lift. Specification 526,110 which discloses switches at the landings for a similar purpose is referred to.
GB1737940A 1940-12-06 1940-12-06 Improvements relating to lift control systems Expired GB545783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1737940A GB545783A (en) 1940-12-06 1940-12-06 Improvements relating to lift control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1737940A GB545783A (en) 1940-12-06 1940-12-06 Improvements relating to lift control systems

Publications (1)

Publication Number Publication Date
GB545783A true GB545783A (en) 1942-06-12

Family

ID=10094162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1737940A Expired GB545783A (en) 1940-12-06 1940-12-06 Improvements relating to lift control systems

Country Status (1)

Country Link
GB (1) GB545783A (en)

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