GB852267A - Improvements relating to electromagnetically operated lifting magnets - Google Patents

Improvements relating to electromagnetically operated lifting magnets

Info

Publication number
GB852267A
GB852267A GB583258A GB583258A GB852267A GB 852267 A GB852267 A GB 852267A GB 583258 A GB583258 A GB 583258A GB 583258 A GB583258 A GB 583258A GB 852267 A GB852267 A GB 852267A
Authority
GB
United Kingdom
Prior art keywords
lifting magnets
improvements relating
electromagnetically operated
operated lifting
feb
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
GB583258A
Inventor
John Thomas Claridge
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.)
Electromagnets Ltd
Original Assignee
Electromagnets Ltd
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 Electromagnets Ltd filed Critical Electromagnets Ltd
Priority to GB583258A priority Critical patent/GB852267A/en
Publication of GB852267A publication Critical patent/GB852267A/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
    • 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
    • B66C2700/087—Electrical assemblies or electrical control devices for electrically actuated grabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

852,267. Supply systems for lifting magnets. ELECTROMAGNETS Ltd. Feb. 18, 1959 [Feb. 22, 1958], No. 5832/58. Diawings to Specification. Class 38 (4). An electromagnet for lifting purposes is directly connected across the output of a grid controlled rectifier the output of which may be varied by alteration of the phase angle of the voltage applied to the grids by a phase shifting transformer. An additional rectifier may be incorporated to supply a small reverse current for demagnetization purposes.
GB583258A 1958-02-22 1958-02-22 Improvements relating to electromagnetically operated lifting magnets Expired GB852267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB583258A GB852267A (en) 1958-02-22 1958-02-22 Improvements relating to electromagnetically operated lifting magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB583258A GB852267A (en) 1958-02-22 1958-02-22 Improvements relating to electromagnetically operated lifting magnets

Publications (1)

Publication Number Publication Date
GB852267A true GB852267A (en) 1960-10-26

Family

ID=9803464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB583258A Expired GB852267A (en) 1958-02-22 1958-02-22 Improvements relating to electromagnetically operated lifting magnets

Country Status (1)

Country Link
GB (1) GB852267A (en)

Similar Documents

Publication Publication Date Title
GB1005090A (en) Electric pulse generating means
GB924554A (en) Improvements in or relating to electrical control systems
GB1031780A (en) Switching circuit for controlling the effective power applied to a load from a source of alternating supply voltage
GB1298064A (en) Improvements in electrostatic spraying equipment
GB852267A (en) Improvements relating to electromagnetically operated lifting magnets
GB606844A (en) Improvements relating to the control of grid-controlled gas or vapour electric discharge devices
GB932265A (en) Synchronised magnetic escapements
GB877019A (en) Improvements in or relating to electric apparatus of the kind including grid-controlled thermionic valves
JPS522119A (en) Television constant voltage power supply
GB974734A (en) Improvements in carbon pile regulated electrical supply systems
GB916994A (en) Relaxation oscillator
GB867044A (en) Improvements relating to pulse transformers
GB872378A (en) Improvements in electric power supply devices
GB889521A (en) Materials sorting apparatus
GB636366A (en) Improvements relating to regulators for dynamos
GB1098621A (en) Voltage control equipment for d.c. generators
GB893609A (en) Demagnetising devices
GB777383A (en) Improvements in or relating to grid-controlled mercury arc rectifiers
GB832435A (en) Improvements in or relating to pulse controlled duo-stable circuit arrangements
GB615856A (en) Improvements in thermionic valve circuits
GB553029A (en) Improvements relating to dynamos and regulating means therefor
GB581373A (en) An improved current supply for electric lamps
JPS5257950A (en) Constant-current power system
GB877601A (en) Improvements in or relating to controllable high-output direct-current impulse generators
GB852906A (en) A circuit for automatic voltage regulating device