GB171917A - A new or improved instrument for ascertaining the correct course of nautical and aeronautical vessels - Google Patents

A new or improved instrument for ascertaining the correct course of nautical and aeronautical vessels

Info

Publication number
GB171917A
GB171917A GB3636520A GB3636520A GB171917A GB 171917 A GB171917 A GB 171917A GB 3636520 A GB3636520 A GB 3636520A GB 3636520 A GB3636520 A GB 3636520A GB 171917 A GB171917 A GB 171917A
Authority
GB
United Kingdom
Prior art keywords
course
base
instrument
arms
arrow
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
GB3636520A
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.)
ROBERT EDWARD CAREY
Original Assignee
ROBERT EDWARD CAREY
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 ROBERT EDWARD CAREY filed Critical ROBERT EDWARD CAREY
Priority to GB3636520A priority Critical patent/GB171917A/en
Publication of GB171917A publication Critical patent/GB171917A/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)
  • Navigation (AREA)

Abstract

171,917. Carey, R. E. Dec. 29, 1920. Courses, determining. - Relates to an instrument for ascertaining the correct course of ships by taking at equal intervals three compass bearings of a distant object; the instrument may also be used by a stationery observer to determine the course of uniformly-moving vessels. The instrument, upon which the bearings taken are set for calculating the course, comprises a base a having a rotatable rim b divided like a compass card. An arrow-head A upon the base is set to the second compass bearing and the respective differences between this bearing and the other two are set by arms w, x pivoted upon a quadrant r, which is provided with a scale for setting the arms and is mounted upon guideways so as to be capable of sliding along the diameter of the base passing through the arrow A. A pivoted pointer c, f is set to indicate on the rim b the required course by sliding the quadrant r upon the base a until the arms w, x come into contact with a centrallydisposed vertical plate k mounted on the disc g. carrying the pointer e, f. An arrow-head B is. used in the case of a stationary observer for setting the second bearing.
GB3636520A 1920-12-29 1920-12-29 A new or improved instrument for ascertaining the correct course of nautical and aeronautical vessels Expired GB171917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3636520A GB171917A (en) 1920-12-29 1920-12-29 A new or improved instrument for ascertaining the correct course of nautical and aeronautical vessels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3636520A GB171917A (en) 1920-12-29 1920-12-29 A new or improved instrument for ascertaining the correct course of nautical and aeronautical vessels

Publications (1)

Publication Number Publication Date
GB171917A true GB171917A (en) 1921-12-01

Family

ID=10387479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3636520A Expired GB171917A (en) 1920-12-29 1920-12-29 A new or improved instrument for ascertaining the correct course of nautical and aeronautical vessels

Country Status (1)

Country Link
GB (1) GB171917A (en)

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