FR518216A - Safety device for mining machines - Google Patents

Safety device for mining machines

Info

Publication number
FR518216A
FR518216A FR518216A FR518216DA FR518216A FR 518216 A FR518216 A FR 518216A FR 518216 A FR518216 A FR 518216A FR 518216D A FR518216D A FR 518216DA FR 518216 A FR518216 A FR 518216A
Authority
FR
France
Prior art keywords
safety device
mining machines
mining
machines
safety
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
FR518216A
Other languages
French (fr)
Inventor
Jacob Iversen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR518216A publication Critical patent/FR518216A/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
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B66B1/12—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. handles or levers, located at a control station for direct control movements, e.g. electric mining-hoist control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
FR518216A 1913-12-04 1920-06-28 Safety device for mining machines Expired FR518216A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE518216X 1913-12-04

Publications (1)

Publication Number Publication Date
FR518216A true FR518216A (en) 1921-05-21

Family

ID=6549897

Family Applications (1)

Application Number Title Priority Date Filing Date
FR518216A Expired FR518216A (en) 1913-12-04 1920-06-28 Safety device for mining machines

Country Status (1)

Country Link
FR (1) FR518216A (en)

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