GB279297A - Improvements in electrical hoisting and lowering apparatus - Google Patents

Improvements in electrical hoisting and lowering apparatus

Info

Publication number
GB279297A
GB279297A GB367427A GB367427A GB279297A GB 279297 A GB279297 A GB 279297A GB 367427 A GB367427 A GB 367427A GB 367427 A GB367427 A GB 367427A GB 279297 A GB279297 A GB 279297A
Authority
GB
United Kingdom
Prior art keywords
hoisting
motor
lowering
main motor
auxiliary motor
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
GB367427A
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.)
NAAMLOOZE VENNOOTSCHAP HENGELO
Original Assignee
NAAMLOOZE VENNOOTSCHAP HENGELO
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 NAAMLOOZE VENNOOTSCHAP HENGELO filed Critical NAAMLOOZE VENNOOTSCHAP HENGELO
Priority to GB367427A priority Critical patent/GB279297A/en
Publication of GB279297A publication Critical patent/GB279297A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

279,297. Naamlooze Vennootschap Hengelosche Electrische en Mechan:ische Apparaten-Fabriek, and Booden, A. Feb. 9, 1927. Drawings to Specification. Electric plant.-In electric hoisting apparatus in which the hoisting drum can be driven not only by a main motor but also by an auxiliary motor of small power and speed the auxiliary motor is coupled to the winding drum by a gear train of greater ratio than that of the train connecting the drum and main motor. The arrangement is such that in the first lowering positions the main motor has the reverse current connection and the auxiliary motor has the lowering direction, while in the first hoisting positions the main motor is connected for hoisting and the auxiliary motor is connected in the direction of lowering.
GB367427A 1927-02-09 1927-02-09 Improvements in electrical hoisting and lowering apparatus Expired GB279297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB367427A GB279297A (en) 1927-02-09 1927-02-09 Improvements in electrical hoisting and lowering apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB367427A GB279297A (en) 1927-02-09 1927-02-09 Improvements in electrical hoisting and lowering apparatus

Publications (1)

Publication Number Publication Date
GB279297A true GB279297A (en) 1927-10-27

Family

ID=9762785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB367427A Expired GB279297A (en) 1927-02-09 1927-02-09 Improvements in electrical hoisting and lowering apparatus

Country Status (1)

Country Link
GB (1) GB279297A (en)

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