GB1347446A - Apparatus for sensing variation in magnetic fields - Google Patents

Apparatus for sensing variation in magnetic fields

Info

Publication number
GB1347446A
GB1347446A GB3543272A GB3543272A GB1347446A GB 1347446 A GB1347446 A GB 1347446A GB 3543272 A GB3543272 A GB 3543272A GB 3543272 A GB3543272 A GB 3543272A GB 1347446 A GB1347446 A GB 1347446A
Authority
GB
United Kingdom
Prior art keywords
magnetizers
magnetic fields
july
package
sensing variation
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
GB3543272A
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.)
Sandco Ltd
Original Assignee
Sandco 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
Priority claimed from DE19712137700 external-priority patent/DE2137700C3/en
Application filed by Sandco Ltd filed Critical Sandco Ltd
Publication of GB1347446A publication Critical patent/GB1347446A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B65G47/46—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points
    • B65G47/50—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to destination signals stored in separate systems
    • B65G47/503—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to destination signals stored in separate systems the system comprising endless moving means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/14—Modifications for compensating variations of physical values, e.g. of temperature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/9517—Proximity switches using a magnetic detector using galvanomagnetic devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Conveyors (AREA)

Abstract

1347446 Selective signalling SANDCO Ltd 28 July 1972 [28 July 1972] 35432/72 Heading G4H [Also in Division G1] A package 15 on a steel conveyer belt is deflected to a particular one of several possible receiving stations selected by operating a particular one of magnetizers 14a, 14b, 14c and detecting the resulting magnetized spot, e.g. 20, by an appropriately positioned magnetometer (see Division G1) 21a, 21b (or 21c). Demagnetizers 23a, 23b, 23c are provided upstream of the magnetizers. The magnetizers are controlled from a switchboard 17 and operated when the package interrupts a photo-electric link 26, 27.
GB3543272A 1971-07-28 1972-07-28 Apparatus for sensing variation in magnetic fields Expired GB1347446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712137700 DE2137700C3 (en) 1971-07-28 Sensing arrangement for detecting a change in magnetic field

Publications (1)

Publication Number Publication Date
GB1347446A true GB1347446A (en) 1974-02-27

Family

ID=5815052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3543272A Expired GB1347446A (en) 1971-07-28 1972-07-28 Apparatus for sensing variation in magnetic fields

Country Status (7)

Country Link
BE (1) BE786921A (en)
CH (1) CH566010A5 (en)
FR (1) FR2148319B1 (en)
GB (1) GB1347446A (en)
IT (1) IT963509B (en)
NL (1) NL173623C (en)
SE (1) SE374604B (en)

Also Published As

Publication number Publication date
FR2148319B1 (en) 1979-02-09
BE786921A (en) 1972-11-16
NL173623C (en) 1984-02-16
CH566010A5 (en) 1975-08-29
SE374604B (en) 1975-03-10
FR2148319A1 (en) 1973-03-11
IT963509B (en) 1974-01-21
NL7210325A (en) 1973-01-30
NL173623B (en) 1983-09-16

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee