GB146323A - Arrangement for raising or lowering a load by means of two simultaneously acting driving mechanisms - Google Patents

Arrangement for raising or lowering a load by means of two simultaneously acting driving mechanisms

Info

Publication number
GB146323A
GB146323A GB18256/20A GB1825620A GB146323A GB 146323 A GB146323 A GB 146323A GB 18256/20 A GB18256/20 A GB 18256/20A GB 1825620 A GB1825620 A GB 1825620A GB 146323 A GB146323 A GB 146323A
Authority
GB
United Kingdom
Prior art keywords
load
winding
drum
lowering
raising
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
GB18256/20A
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl AG
Fried Krupp AG
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 Krupp Stahl AG, Fried Krupp AG filed Critical Krupp Stahl AG
Publication of GB146323A publication Critical patent/GB146323A/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
    • B66C13/26—Circuits for controlling the lowering of the load by ac motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
    • B66C2700/081—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists with ac motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

146,323. Krupp Akt.-Ges., F. May 7, 1918, [Convention date]. Constant-tension winding and paying-out apparatus.-A winding-drum is provided with two simultaneously-acting driving-mechanisms, one of which overcomes frictional and inertia resistances and the other approximately compensates the weight of the load. The winding-drum A is driven by a handle a<2>, or by a motor, the power applied being sufficient to overcome frictional and inertia resistances, while the power required to balance the weight of the load is produced by an electric motor D suitably geared to the winding- drum and provided with a choking-coil E and resistance G in the circuits of the rotor and stator respectively, the stator resistance and rotor inductance values being set for a given value of load lifted. and are unaltered for changes of lifting or lowering speed.
GB18256/20A 1918-05-07 1920-07-02 Arrangement for raising or lowering a load by means of two simultaneously acting driving mechanisms Expired GB146323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE146323X 1918-05-07

Publications (1)

Publication Number Publication Date
GB146323A true GB146323A (en) 1921-07-21

Family

ID=5671291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18256/20A Expired GB146323A (en) 1918-05-07 1920-07-02 Arrangement for raising or lowering a load by means of two simultaneously acting driving mechanisms

Country Status (1)

Country Link
GB (1) GB146323A (en)

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