GB2081472A - Hydraulic lift control system - Google Patents

Hydraulic lift control system Download PDF

Info

Publication number
GB2081472A
GB2081472A GB8100938A GB8100938A GB2081472A GB 2081472 A GB2081472 A GB 2081472A GB 8100938 A GB8100938 A GB 8100938A GB 8100938 A GB8100938 A GB 8100938A GB 2081472 A GB2081472 A GB 2081472A
Authority
GB
United Kingdom
Prior art keywords
cab
circuit
speed
control circuit
travel
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.)
Withdrawn
Application number
GB8100938A
Other languages
English (en)
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.)
Elevator Equipment Co
Original Assignee
Elevator Equipment Co
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 Elevator Equipment Co filed Critical Elevator Equipment Co
Publication of GB2081472A publication Critical patent/GB2081472A/en
Withdrawn legal-status Critical Current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
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Types And Forms Of Lifts (AREA)
GB8100938A 1980-07-09 1981-01-13 Hydraulic lift control system Withdrawn GB2081472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/167,388 US4311212A (en) 1980-07-09 1980-07-09 Valve control system

Publications (1)

Publication Number Publication Date
GB2081472A true GB2081472A (en) 1982-02-17

Family

ID=22607169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8100938A Withdrawn GB2081472A (en) 1980-07-09 1981-01-13 Hydraulic lift control system

Country Status (8)

Country Link
US (1) US4311212A (enExample)
JP (1) JPS5727883A (enExample)
CA (1) CA1163737A (enExample)
CH (1) CH657117A5 (enExample)
DE (1) DE3100793A1 (enExample)
FR (1) FR2486509A1 (enExample)
GB (1) GB2081472A (enExample)
IT (1) IT1142243B (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726450A (en) * 1985-11-18 1988-02-23 Otis Elevator Company Hydraulic elevator with dynamically programmed motor-operated valve
JPS62126087A (ja) * 1985-11-25 1987-06-08 株式会社日立製作所 流体圧エレベ−タ
JPS631683A (ja) * 1986-06-20 1988-01-06 株式会社日立製作所 流体圧エレベ−タ
US4896747A (en) * 1988-07-28 1990-01-30 Otis Elevator Company Modular elevator system
US4932502A (en) * 1989-02-15 1990-06-12 Inventio Ag Hydraulic elevator system
US5056437A (en) * 1990-05-15 1991-10-15 Republic Storage Systems Company, Inc. Device for initializing an automated warehousing system
FI88012C (sv) * 1990-06-04 1993-03-25 Kone Oy Förfarande och anordning för styrning av en hydraulhiss vid inkörning till plan
US5349854A (en) * 1992-05-01 1994-09-27 Otis Elevator Company Elevator speed and position indicating device
US5890562A (en) * 1996-08-16 1999-04-06 Bt Prime Mover, Inc. Control console for material handling vehicle
US6484849B2 (en) * 2001-02-28 2002-11-26 Otis Elevator Company Elevator speed measurement system including reflective signal technology for making speed determinations
US10611600B2 (en) * 2017-06-26 2020-04-07 Otis Elevator Company Hydraulic elevator system with position or speed based valve control

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187844A (en) * 1961-09-06 1965-06-08 Hydraulic Elevator & Machine C Hydraulic elevator control
US3119501A (en) * 1961-10-10 1964-01-28 Jerome H Lemelson Automatic warehousing system
US3553560A (en) * 1969-08-15 1971-01-05 Gen Motors Corp Direct current permanent magnet motor servomotor system
US3963098A (en) * 1974-05-07 1976-06-15 Westinghouse Electric Corporation Position measurement apparatus
US3977497A (en) * 1975-02-26 1976-08-31 Armor Elevator Company, Inc. Hydraulic elevator drive system
US4034275A (en) * 1975-12-29 1977-07-05 Karl Mangel Optical control system for elevators
US4276506A (en) * 1979-06-29 1981-06-30 Chore-Time Equipment, Inc. Motor control circuit

Also Published As

Publication number Publication date
CH657117A5 (de) 1986-08-15
FR2486509A1 (fr) 1982-01-15
DE3100793A1 (de) 1982-02-11
US4311212A (en) 1982-01-19
JPS5727883A (en) 1982-02-15
FR2486509B3 (enExample) 1983-11-18
CA1163737A (en) 1984-03-13
IT8147634A0 (it) 1981-01-26
IT1142243B (it) 1986-10-08

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)