GB288412A - Drift correcting compass for use on aircraft - Google Patents

Drift correcting compass for use on aircraft

Info

Publication number
GB288412A
GB288412A GB494027A GB494027A GB288412A GB 288412 A GB288412 A GB 288412A GB 494027 A GB494027 A GB 494027A GB 494027 A GB494027 A GB 494027A GB 288412 A GB288412 A GB 288412A
Authority
GB
United Kingdom
Prior art keywords
wires
compass
knob
ground
scale
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
GB494027A
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.)
WILFRED GEORGE FRYER
Original Assignee
WILFRED GEORGE FRYER
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 WILFRED GEORGE FRYER filed Critical WILFRED GEORGE FRYER
Priority to GB494027A priority Critical patent/GB288412A/en
Publication of GB288412A publication Critical patent/GB288412A/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)
  • Toys (AREA)

Abstract

288,412. Blagden, W. M., and Fryer, W. G. Feb. 22, 1927. Acronautical compasses.-A compass for use on aircraft to enable a given course to be steered in relation to the ground has a transparent base through which the ground can be observed and a system of sighting wires or vanes which can be adjusted in relation to the magnet according to the course to be followed. The magnet a is supported on a pivot in the compass bowl which is provided with an azimuth scale h and the wires b are connected frictionally with the magnets by a spring c. For adjusting the wires, a toothed wheel d can, by depressing a knob i be brought into engagement with a similar wheel on the pivot cup. The spindle of the wheel d passes through a square-section rod f having a projection g which makes contact with a similar projection on the boss carrying the wires when the wires are pointing to the zero of the scale h. To set the wires, the knob i is depressed and turned until the two projections engage. It is then further turned until the north pointer of the magnets is opposite the desired course in the scale h. The knob is then released and the compass is used by observing objects on the ground through the transparent base and steering the craft so that the apparent direction of movement of such objects is along or parallel to, the wires b. Specification 12442/11 is referred to.
GB494027A 1927-02-22 1927-02-22 Drift correcting compass for use on aircraft Expired GB288412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB494027A GB288412A (en) 1927-02-22 1927-02-22 Drift correcting compass for use on aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB494027A GB288412A (en) 1927-02-22 1927-02-22 Drift correcting compass for use on aircraft

Publications (1)

Publication Number Publication Date
GB288412A true GB288412A (en) 1928-04-12

Family

ID=9786711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB494027A Expired GB288412A (en) 1927-02-22 1927-02-22 Drift correcting compass for use on aircraft

Country Status (1)

Country Link
GB (1) GB288412A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561332A (en) * 1951-07-24 Course indicator
US2863220A (en) * 1956-01-23 1958-12-09 Marguerite G Staples Layout wheel for tubular constructions
US3177591A (en) * 1962-10-25 1965-04-13 William S Jolley Compass with means for correcting angle of declination

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561332A (en) * 1951-07-24 Course indicator
US2863220A (en) * 1956-01-23 1958-12-09 Marguerite G Staples Layout wheel for tubular constructions
US3177591A (en) * 1962-10-25 1965-04-13 William S Jolley Compass with means for correcting angle of declination

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