GB381613A - Improvements in navigational plotting instruments - Google Patents

Improvements in navigational plotting instruments

Info

Publication number
GB381613A
GB381613A GB1490731A GB1490731A GB381613A GB 381613 A GB381613 A GB 381613A GB 1490731 A GB1490731 A GB 1490731A GB 1490731 A GB1490731 A GB 1490731A GB 381613 A GB381613 A GB 381613A
Authority
GB
United Kingdom
Prior art keywords
arm
rotatable
sheet
scale
plotting instruments
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
GB1490731A
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.)
DAVID JOHN WAGHORN
Original Assignee
DAVID JOHN WAGHORN
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 DAVID JOHN WAGHORN filed Critical DAVID JOHN WAGHORN
Priority to GB1490731A priority Critical patent/GB381613A/en
Publication of GB381613A publication Critical patent/GB381613A/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)
  • Drawing Aids And Blackboards (AREA)

Abstract

381,613. Trigonometrical calculators. WAGHORN, D. J., H.M.S. Glorious, c/o G.P.O., London. March 16, 1932, No. 14907/31. [Class 106 (i).] For solving vector problems in aerial navigation a speed-graduated arm D is slidable and rotatable upon a pivot F also rotatable on a transparent protractor sheet A bearing grid lines B. Also pivoted at F is another arm H which may be clamped to move with arm D. Concentric with the angle scale C is an ordinary log. scale I. Scales J, J<1> of miles may be provided along the edges of the sheet and the arm D may carry a cursor.
GB1490731A 1932-03-16 1932-03-16 Improvements in navigational plotting instruments Expired GB381613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1490731A GB381613A (en) 1932-03-16 1932-03-16 Improvements in navigational plotting instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1490731A GB381613A (en) 1932-03-16 1932-03-16 Improvements in navigational plotting instruments

Publications (1)

Publication Number Publication Date
GB381613A true GB381613A (en) 1932-10-13

Family

ID=10049643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1490731A Expired GB381613A (en) 1932-03-16 1932-03-16 Improvements in navigational plotting instruments

Country Status (1)

Country Link
GB (1) GB381613A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550238A (en) * 1948-11-09 1951-04-24 Geophysical Service Inc Device for comparing traces on seismic records
US4866852A (en) * 1986-09-02 1989-09-19 Plier Douglas W Aeronautic chart removably attachable course and position locator
GB2414076A (en) * 2004-05-05 2005-11-16 Terence Leonard Walker Navigation plotter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550238A (en) * 1948-11-09 1951-04-24 Geophysical Service Inc Device for comparing traces on seismic records
US4866852A (en) * 1986-09-02 1989-09-19 Plier Douglas W Aeronautic chart removably attachable course and position locator
GB2414076A (en) * 2004-05-05 2005-11-16 Terence Leonard Walker Navigation plotter

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