GB576833A - Improvements in or relating to magnetic compasses - Google Patents

Improvements in or relating to magnetic compasses

Info

Publication number
GB576833A
GB576833A GB836743A GB836743A GB576833A GB 576833 A GB576833 A GB 576833A GB 836743 A GB836743 A GB 836743A GB 836743 A GB836743 A GB 836743A GB 576833 A GB576833 A GB 576833A
Authority
GB
United Kingdom
Prior art keywords
gear
spindles
turntable
spindle
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
GB836743A
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
Priority to GB836743A priority Critical patent/GB576833A/en
Publication of GB576833A publication Critical patent/GB576833A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Mechanical Control Devices (AREA)

Abstract

576,833. Aeronautical &c. compasses. WILSON, T. A. F. May 26, 1943, No. 8367. [Class 97 (ii)] A magnetic compass is mounted for rotation about its axis in an aeroplane or on a ship or other vehicle and means are provided for adjusting its angular position in azimuth according to magnetic variation and deviation at any particular moment. The compass is carried by a turntable d which carries a gear v which is rotated from a pair of spindles, one of which is rotated according to the magnetic variation and the other according to the deviation due to the aeroplane &c. As shown, the variation knob f is mounted on a spindle h coupled by pin n and slot k to a spindle L having a gear m in mesh with a gear o mounted on a spindle p. The latter carries a loose gear r in mesh with the gear v of the turntable and a gear s which is part of a differential gear, the planet gears u of which are carried by projections t of the loose gear r. A similar knob g is provided mounted on a spindle l<1> to apply angular movement in azimuth to the turntable d according to the magnetic deviation. Actuation of the knobs f, g applies differential rotation to the planet gears u and consequently to the turntable. The spindles l, l<1> are mounted for axial movement against springs z, z<1> and are provided with dogs x, x<1> co-operating with dogs y, y<1> so that the spindles l, l<1> are normally locked against operation and axial movement by the knobs /, g to the spindles l, l<1> is necessary before either of the latter can be operated..
GB836743A 1943-05-26 1943-05-26 Improvements in or relating to magnetic compasses Expired GB576833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB836743A GB576833A (en) 1943-05-26 1943-05-26 Improvements in or relating to magnetic compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB836743A GB576833A (en) 1943-05-26 1943-05-26 Improvements in or relating to magnetic compasses

Publications (1)

Publication Number Publication Date
GB576833A true GB576833A (en) 1946-04-23

Family

ID=9851178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB836743A Expired GB576833A (en) 1943-05-26 1943-05-26 Improvements in or relating to magnetic compasses

Country Status (1)

Country Link
GB (1) GB576833A (en)

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