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GB1030684A - Improvements in or relating to magnetic compasses - Google Patents

Improvements in or relating to magnetic compasses

Info

Publication number
GB1030684A
GB1030684A GB1374062A GB1374062A GB1030684A GB 1030684 A GB1030684 A GB 1030684A GB 1374062 A GB1374062 A GB 1374062A GB 1374062 A GB1374062 A GB 1374062A GB 1030684 A GB1030684 A GB 1030684A
Authority
GB
United Kingdom
Prior art keywords
relating
magnetic compasses
compasses
magnetic
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
GB1374062A
Inventor
John Calder Gillie
Sidney Kennedy
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.)
John Lilley & Gillie Ltd
Original Assignee
John Lilley & Gillie 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 John Lilley & Gillie Ltd filed Critical John Lilley & Gillie Ltd
Priority to GB1374062A priority Critical patent/GB1030684A/en
Publication of GB1030684A publication Critical patent/GB1030684A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/20—Observing the compass card or needle
    • G01C17/26—Observing the compass card or needle using electric pick-offs for transmission to final indicator, e.g. photocell

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB1374062A 1962-04-10 1962-04-10 Improvements in or relating to magnetic compasses Expired GB1030684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1374062A GB1030684A (en) 1962-04-10 1962-04-10 Improvements in or relating to magnetic compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1374062A GB1030684A (en) 1962-04-10 1962-04-10 Improvements in or relating to magnetic compasses

Publications (1)

Publication Number Publication Date
GB1030684A true GB1030684A (en) 1966-05-25

Family

ID=10028514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1374062A Expired GB1030684A (en) 1962-04-10 1962-04-10 Improvements in or relating to magnetic compasses

Country Status (1)

Country Link
GB (1) GB1030684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699658A (en) * 1970-10-30 1972-10-24 Electro Marine Corp Binnacle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699658A (en) * 1970-10-30 1972-10-24 Electro Marine Corp Binnacle

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