FR552614A - Improvements to electrically controlled mining machines - Google Patents

Improvements to electrically controlled mining machines

Info

Publication number
FR552614A
FR552614A FR552614DA FR552614A FR 552614 A FR552614 A FR 552614A FR 552614D A FR552614D A FR 552614DA FR 552614 A FR552614 A FR 552614A
Authority
FR
France
Prior art keywords
electrically controlled
mining machines
controlled mining
machines
electrically
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
Other languages
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR552614A publication Critical patent/FR552614A/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
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
    • B66B1/42—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings separate from the main drive

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR552614D 1922-06-07 1922-06-07 Improvements to electrically controlled mining machines Expired FR552614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR552614T 1922-06-07

Publications (1)

Publication Number Publication Date
FR552614A true FR552614A (en) 1923-05-04

Family

ID=8937677

Family Applications (1)

Application Number Title Priority Date Filing Date
FR552614D Expired FR552614A (en) 1922-06-07 1922-06-07 Improvements to electrically controlled mining machines

Country Status (1)

Country Link
FR (1) FR552614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975853C (en) * 1951-10-19 1962-10-25 Kloeckner Humboldt Deutz Ag Electric drive for ball mills, in which an auxiliary motor is arranged to protect the drive motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975853C (en) * 1951-10-19 1962-10-25 Kloeckner Humboldt Deutz Ag Electric drive for ball mills, in which an auxiliary motor is arranged to protect the drive motor

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