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GB921643A - Improvements in and relating to remote control systems - Google Patents

Improvements in and relating to remote control systems

Info

Publication number
GB921643A
GB921643A GB955761A GB955761A GB921643A GB 921643 A GB921643 A GB 921643A GB 955761 A GB955761 A GB 955761A GB 955761 A GB955761 A GB 955761A GB 921643 A GB921643 A GB 921643A
Authority
GB
United Kingdom
Prior art keywords
phase
generator
motor
carrier
frequency
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
GB955761A
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
Publication of GB921643A publication Critical patent/GB921643A/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
    • B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control 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
    • B66C2700/088—Remote control of electric cranes

Landscapes

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

Abstract

921,643. Electric selective signalling systems. H. TAX. March 15, 1961 [April 20, 1960], No. 9557/61. Class 40 (1). [Also in Group XL (c)] In a system for remotely controlling a crane, selection of one of carrier-frequency generators G 1 - G n determines the controlled function, e.g. the slewing of the jib, and the continuously adjustable phase of a modulating signal from generator G B represents an associated control order, e.g. to determine the speed of a motor. Each generator G 1 -G n has an associated modulator M 1 -M n and phase-shifter P 1 -P n . Generator G n+1 and modulator M n+ 1 serves to transmit a reference phase to phase comparators C 1 -C n through filter F n+1 and demodulator D n+1 . A filter F 1 -F n is provided for each carrier-frequency, the associated relay R 1 - R n energizing a motor A 1 -A n when the associated carrier-frequency is received. Demodulator D 1 -D n retrieves the modulating signal and supplies it to the phase comparator C 1 -C n , the output shaft of which adjusts the shunt resistance of the motor.
GB955761A 1960-04-20 1961-03-15 Improvements in and relating to remote control systems Expired GB921643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET18257A DE1129597B (en) 1960-04-20 1960-04-20 Remote control system for the transmission of continuously variable control commands, especially for cranes and conveyor systems

Publications (1)

Publication Number Publication Date
GB921643A true GB921643A (en) 1963-03-20

Family

ID=7548877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB955761A Expired GB921643A (en) 1960-04-20 1961-03-15 Improvements in and relating to remote control systems

Country Status (3)

Country Link
BE (1) BE601493A (en)
DE (1) DE1129597B (en)
GB (1) GB921643A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835454A (en) * 1972-10-10 1974-09-10 Westport Int Inc Plural channel fm remote control system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069754B (en) * 1959-11-26 Telcfonbau und Normalzeit G.m. b.H., Frankfurt/M Method for the electrical transmission of switching commands in remote control systems by means of alternating voltage of different frequencies
DE1056240B (en) * 1954-04-17 1959-04-30 Sueddeutsche Telefon App Kabel Electric remote control system
DE1026938B (en) * 1955-05-28 1958-03-27 Maschf Augsburg Nuernberg Ag Device for the optional control of several auxiliary drives of crane and conveyor systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835454A (en) * 1972-10-10 1974-09-10 Westport Int Inc Plural channel fm remote control system

Also Published As

Publication number Publication date
BE601493A (en) 1961-07-17
DE1129597B (en) 1962-05-17

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