FR2176986B1 - - Google Patents

Info

Publication number
FR2176986B1
FR2176986B1 FR7310082A FR7310082A FR2176986B1 FR 2176986 B1 FR2176986 B1 FR 2176986B1 FR 7310082 A FR7310082 A FR 7310082A FR 7310082 A FR7310082 A FR 7310082A FR 2176986 B1 FR2176986 B1 FR 2176986B1
Authority
FR
France
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
FR7310082A
Other languages
French (fr)
Other versions
FR2176986A1 (cs
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2176986A1 publication Critical patent/FR2176986A1/fr
Application granted granted Critical
Publication of FR2176986B1 publication Critical patent/FR2176986B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Safety Devices In Control Systems (AREA)
  • Control And Safety Of Cranes (AREA)
  • Stopping Of Electric Motors (AREA)
FR7310082A 1972-03-21 1973-03-21 Expired FR2176986B1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1321372A GB1419641A (en) 1972-03-21 1972-03-21 Control apparatus for a powered hoist

Publications (2)

Publication Number Publication Date
FR2176986A1 FR2176986A1 (cs) 1973-11-02
FR2176986B1 true FR2176986B1 (cs) 1977-12-30

Family

ID=10018892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7310082A Expired FR2176986B1 (cs) 1972-03-21 1973-03-21

Country Status (6)

Country Link
US (1) US3847251A (cs)
JP (1) JPS4912559A (cs)
DE (1) DE2313893A1 (cs)
FR (1) FR2176986B1 (cs)
GB (1) GB1419641A (cs)
IT (1) IT979910B (cs)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033511B (en) * 1978-11-10 1982-09-02 Coal Industry Patents Ltd Brake control equipment for a vehicle with drive means
CH652995A5 (de) * 1980-04-21 1985-12-13 Inventio Ag Aufzugsantrieb mit anfahrsteuerung.
GB2082227B (en) * 1980-08-15 1984-03-07 Coal Industry Patents Ltd Brake equipment for underground mining machines
AU580453B2 (en) * 1985-11-04 1989-01-12 Johns Perry Industries Pty. Ltd. Lift sheave
JPH0789750B2 (ja) * 1986-04-10 1995-09-27 株式会社安川電機 クレ−ン用ｖ／ｆインバ−タ制御方法
US4754850A (en) * 1987-07-29 1988-07-05 Westinghouse Electric Corp. Method for providing a load compensation signal for a traction elevator system
US4793442A (en) * 1987-11-05 1988-12-27 Schindler Elevator Corporation Method and apparatus for providing pre-travel balancing energy to an elevator drive
US6758356B1 (en) * 1989-10-10 2004-07-06 Manitowoc Crane Companies, Inc. Liftcrane with synchronous rope operation
US5424498A (en) * 1993-03-31 1995-06-13 Otis Elevator Company Elevator start jerk removal
CN102408065B (zh) * 2011-10-28 2014-07-23 上海三一科技有限公司 多卷扬同步控制装置及控制方法及包括该装置的起重机
US10308230B2 (en) * 2015-11-13 2019-06-04 Igarashi Electric Works Ltd Electric parking brake device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB927494A (en) * 1959-09-02 1963-05-29 Inventio Ag Improvements in or relating to starting arrangements of electric drives with mechanical holding brakes
CH429904A (de) * 1965-04-01 1967-02-15 Inventio Ag Anordnung zur Erzielung eines ruckfreien Anfahrens bei einem elektrischen Antrieb mit mechanischer Haltebremse
US3510107A (en) * 1968-01-11 1970-05-05 United Aircraft Corp Multiple hoist synchronization system
JPS499858B1 (cs) * 1968-11-29 1974-03-07

Also Published As

Publication number Publication date
GB1419641A (en) 1975-12-31
US3847251A (en) 1974-11-12
IT979910B (it) 1974-09-30
JPS4912559A (cs) 1974-02-04
FR2176986A1 (cs) 1973-11-02
DE2313893A1 (de) 1973-10-04

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse