GB191314191A - New or Improved Equipment for Navigational Purposes. - Google Patents

New or Improved Equipment for Navigational Purposes.

Info

Publication number
GB191314191A
GB191314191A GB191314191DA GB191314191A GB 191314191 A GB191314191 A GB 191314191A GB 191314191D A GB191314191D A GB 191314191DA GB 191314191 A GB191314191 A GB 191314191A
Authority
GB
United Kingdom
Prior art keywords
markings
fitted
scale
new
illuminated
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
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.)
KELVIN and JAMES WHITE Ltd
Original Assignee
KELVIN and JAMES WHITE Ltd
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 KELVIN and JAMES WHITE Ltd filed Critical KELVIN and JAMES WHITE Ltd
Application granted granted Critical
Publication of GB191314191A publication Critical patent/GB191314191A/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)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

14,191. Kelvin & J. White, and Field, M. B. June 19. [Cognate Application, 17,365/13.] Mariners' compasses; angle - measuring instruments.-A compass is adapted for use as a departure rule by being-fitted with a series of markings c constituting a cotangent scale, these markings being shown on a paper screen a concentric with the card, while on a paper annulus a<1> there are degree or like markings. Tables p, p<1>, p<2> showing the amount of alteration of course required in given circumstances are also provided, and, to enable reading at night to be facilitated, the bezel is so notched that the azimuth fitting can be adjusted by touch to the angles corresponding to the scale c. The dial of the log is adequately illuminated and placed in a position where it is easily readable. A spirit level is fitted and adapted to be illuminated from below. Specification 22,513/10 is referred to.
GB191314191D 1913-06-19 1913-06-19 New or Improved Equipment for Navigational Purposes. Expired GB191314191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191314191T 1913-06-19

Publications (1)

Publication Number Publication Date
GB191314191A true GB191314191A (en) 1914-06-04

Family

ID=34359556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191314191D Expired GB191314191A (en) 1913-06-19 1913-06-19 New or Improved Equipment for Navigational Purposes.

Country Status (1)

Country Link
GB (1) GB191314191A (en)

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