FR975526A - Variable current control, especially for lifting devices - Google Patents

Variable current control, especially for lifting devices

Info

Publication number
FR975526A
FR975526A FR975526DA FR975526A FR 975526 A FR975526 A FR 975526A FR 975526D A FR975526D A FR 975526DA FR 975526 A FR975526 A FR 975526A
Authority
FR
France
Prior art keywords
current control
variable current
lifting devices
lifting
variable
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of FR975526A publication Critical patent/FR975526A/en
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
    • B66C13/24—Circuits for controlling the lowering of the load by dc motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
FR975526D 1947-11-29 1948-11-27 Variable current control, especially for lifting devices Expired FR975526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US975526XA 1947-11-29 1947-11-29

Publications (1)

Publication Number Publication Date
FR975526A true FR975526A (en) 1951-03-06

Family

ID=22263980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR975526D Expired FR975526A (en) 1947-11-29 1948-11-27 Variable current control, especially for lifting devices

Country Status (1)

Country Link
FR (1) FR975526A (en)

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