GB1016980A - Improved apparatus for detecting ferrous metal objects - Google Patents

Improved apparatus for detecting ferrous metal objects

Info

Publication number
GB1016980A
GB1016980A GB38043/64A GB3804364A GB1016980A GB 1016980 A GB1016980 A GB 1016980A GB 38043/64 A GB38043/64 A GB 38043/64A GB 3804364 A GB3804364 A GB 3804364A GB 1016980 A GB1016980 A GB 1016980A
Authority
GB
United Kingdom
Prior art keywords
magnets
ferrous metal
switch
improved apparatus
metal objects
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
GB38043/64A
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of GB1016980A publication Critical patent/GB1016980A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/008—Change of magnetic field wherein the magnet and switch are fixed, e.g. by shielding or relative movements of armature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

1,016,980. Ferrous metal presence detecting apparatus. HONEYWELL Inc. Sept. 17, 1964 [Sept. 25, 1963], No. 38043/64. Heading G1N. A ferrous metal object detecting arrangement comprises two magnets 13, 14, placed side-byside with their poles mutually reversed, a magnetically operated electric switch 16 adjacent the two magnets so as to be influenced by both, and a ferrous member 15 placed adjacent one of the magnets to reduce the amount of movement of an object necessary to actuate the switch. The switch is glass enclosed, and the ferrous member is adjustable relative to the magnets by screws 15a. A normally open switch is referred to.
GB38043/64A 1963-09-25 1964-09-17 Improved apparatus for detecting ferrous metal objects Expired GB1016980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31158163A 1963-09-25 1963-09-25

Publications (1)

Publication Number Publication Date
GB1016980A true GB1016980A (en) 1966-01-12

Family

ID=23207539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38043/64A Expired GB1016980A (en) 1963-09-25 1964-09-17 Improved apparatus for detecting ferrous metal objects

Country Status (3)

Country Link
JP (1) JPS4215324B1 (en)
DE (1) DE1448357A1 (en)
GB (1) GB1016980A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319138A1 (en) * 1975-07-23 1977-02-18 Compain Batissou Jean Magnetic field monitor detecting flying saucers - utilises disturbance of compass pointer which unmasks light beam triggering alarm circuit
EP0050603A2 (en) * 1980-10-13 1982-04-28 Sven Landström A device for locating a submerged submarine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319138A1 (en) * 1975-07-23 1977-02-18 Compain Batissou Jean Magnetic field monitor detecting flying saucers - utilises disturbance of compass pointer which unmasks light beam triggering alarm circuit
EP0050603A2 (en) * 1980-10-13 1982-04-28 Sven Landström A device for locating a submerged submarine
EP0050603A3 (en) * 1980-10-13 1982-12-29 Sven Landström A device for locating a submerged submarine

Also Published As

Publication number Publication date
JPS4215324B1 (en) 1967-08-25
DE1448357A1 (en) 1968-12-12

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