GB501737A - Sighting instrument for determining altitudes - Google Patents

Sighting instrument for determining altitudes

Info

Publication number
GB501737A
GB501737A GB2349937A GB2349937A GB501737A GB 501737 A GB501737 A GB 501737A GB 2349937 A GB2349937 A GB 2349937A GB 2349937 A GB2349937 A GB 2349937A GB 501737 A GB501737 A GB 501737A
Authority
GB
United Kingdom
Prior art keywords
determining
sighting instrument
arc
sighting
instrument
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
GB2349937A
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 GB2349937A priority Critical patent/GB501737A/en
Publication of GB501737A publication Critical patent/GB501737A/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
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

501,737. Sighting clinometers. JONES, D. L. Aug. 27, 1937, No. 23499. Drawings to Specification. [Class 97 (ii)] An instrument for determining the altitude of the sun or other celestial body comprises a graduated arc of 90‹ adapted to be supported in a vertical plane with its base horizontal and an index bar pivoted at the centre of the arc and carrying a system of lenses adapted to focus an image of the observed object on a sight plate.
GB2349937A 1937-08-27 1937-08-27 Sighting instrument for determining altitudes Expired GB501737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2349937A GB501737A (en) 1937-08-27 1937-08-27 Sighting instrument for determining altitudes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2349937A GB501737A (en) 1937-08-27 1937-08-27 Sighting instrument for determining altitudes

Publications (1)

Publication Number Publication Date
GB501737A true GB501737A (en) 1939-02-27

Family

ID=10196601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2349937A Expired GB501737A (en) 1937-08-27 1937-08-27 Sighting instrument for determining altitudes

Country Status (1)

Country Link
GB (1) GB501737A (en)

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