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CH491039A - Control device for an elevator with a Ward-Leonard drive - Google Patents

Control device for an elevator with a Ward-Leonard drive

Info

Publication number
CH491039A
CH491039A CH417869A CH417869A CH491039A CH 491039 A CH491039 A CH 491039A CH 417869 A CH417869 A CH 417869A CH 417869 A CH417869 A CH 417869A CH 491039 A CH491039 A CH 491039A
Authority
CH
Switzerland
Prior art keywords
ward
elevator
control device
leonard drive
leonard
Prior art date
Application number
CH417869A
Other languages
German (de)
Inventor
Ervin Laas Ilmar
Original Assignee
Otis Elevator 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 Otis Elevator Co filed Critical Otis Elevator Co
Publication of CH491039A publication Critical patent/CH491039A/en

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)
  • Control Of Direct Current Motors (AREA)
  • Relay Circuits (AREA)
CH417869A 1968-04-01 1969-03-19 Control device for an elevator with a Ward-Leonard drive CH491039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71772368A 1968-04-01 1968-04-01

Publications (1)

Publication Number Publication Date
CH491039A true CH491039A (en) 1970-05-31

Family

ID=24883200

Family Applications (1)

Application Number Title Priority Date Filing Date
CH417869A CH491039A (en) 1968-04-01 1969-03-19 Control device for an elevator with a Ward-Leonard drive

Country Status (6)

Country Link
US (1) US3536969A (en)
CA (1) CA930084A (en)
CH (1) CH491039A (en)
DE (1) DE1916061A1 (en)
FR (1) FR2005317A1 (en)
GB (1) GB1216978A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688874A (en) * 1971-08-09 1972-09-05 Otis Elevator Co Elevator motor control system employing power amplifier with output current limiting arrangement
FR2666574B1 (en) * 1990-09-10 1993-09-10 Pascal Alain RETARDER DEVICE FOR SINGLE-SPEED ELEVATORS OPERATING WITH AN ELECTRIC DRIVE MOTOR.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231809A (en) * 1961-12-01 1966-01-25 Galion Jeffrey Mfg Co Motor acceleration control with controlled rectifier circuit
US3250972A (en) * 1962-12-05 1966-05-10 Staley Elevator Company Inc Elevator control for a generator-fed motor control system
US3341759A (en) * 1963-12-05 1967-09-12 Tokyo Shibaura Electric Co Control device for electric cars including scr short circuiting of a starting resistance
US3390318A (en) * 1965-07-06 1968-06-25 Raymond Corp Acceleration control device for an electric motor including a unijunction transistorand a controlled rectifier

Also Published As

Publication number Publication date
DE1916061A1 (en) 1969-10-23
GB1216978A (en) 1970-12-23
CA930084A (en) 1973-07-10
FR2005317A1 (en) 1969-12-12
US3536969A (en) 1970-10-27

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Legal Events

Date Code Title Description
PL Patent ceased