GB2067299A - Air and sea navigation instrument - Google Patents

Air and sea navigation instrument

Info

Publication number
GB2067299A
GB2067299A GB8040264A GB8040264A GB2067299A GB 2067299 A GB2067299 A GB 2067299A GB 8040264 A GB8040264 A GB 8040264A GB 8040264 A GB8040264 A GB 8040264A GB 2067299 A GB2067299 A GB 2067299A
Authority
GB
United Kingdom
Prior art keywords
plate
air
instrument
navigation instrument
graduations
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.)
Granted
Application number
GB8040264A
Other versions
GB2067299B (en
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
Priority claimed from FR7807086A external-priority patent/FR2420117A1/en
Priority claimed from FR7833918A external-priority patent/FR2443046A2/en
Application filed by Individual filed Critical Individual
Priority claimed from EP19790900256 external-priority patent/EP0011623A1/en
Publication of GB2067299A publication Critical patent/GB2067299A/en
Application granted granted Critical
Publication of GB2067299B publication Critical patent/GB2067299B/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
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

Instrument for measuring angles consisting of a rectangular transparent plate whereon two semi-circular angular graduations (1, 2) are marked of which the indications (3, 4) are shifted with respect to each other by two right angles, the graduations being centered on a same middle point (6) of one of the edges of the plate, the instrument further comprising a sector plate (5) provided with a cavity where a needle (7) is set, said needle allowing to display the corrections to be made and the search for the meridian, a pin (8) located in the groove of the main plate, an index (9) and a display button. <IMAGE>
GB8040264A 1978-03-13 1979-03-07 Air and sea navigation instrument Expired GB2067299B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7807086A FR2420117A1 (en) 1978-03-13 1978-03-13 Air and sea navigation instrument - includes protractor scale with graduated sector pivoted about centre of graduated semicircle
FR7833918A FR2443046A2 (en) 1978-12-01 1978-12-01 Air and sea navigation instrument - includes protractor scale with graduated sector pivoted about centre of graduated semicircle
EP19790900256 EP0011623A1 (en) 1978-03-13 1979-10-09 Air and sea navigation instrument

Publications (2)

Publication Number Publication Date
GB2067299A true GB2067299A (en) 1981-07-22
GB2067299B GB2067299B (en) 1982-12-15

Family

ID=27224636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8040264A Expired GB2067299B (en) 1978-03-13 1979-03-07 Air and sea navigation instrument

Country Status (1)

Country Link
GB (1) GB2067299B (en)

Also Published As

Publication number Publication date
GB2067299B (en) 1982-12-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee