GB138671A - Improvements in the mariner's compass - Google Patents

Improvements in the mariner's compass

Info

Publication number
GB138671A
GB138671A GB106219A GB106219A GB138671A GB 138671 A GB138671 A GB 138671A GB 106219 A GB106219 A GB 106219A GB 106219 A GB106219 A GB 106219A GB 138671 A GB138671 A GB 138671A
Authority
GB
United Kingdom
Prior art keywords
bowl
groove
compasses
mariner
compass
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
GB106219A
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 GB106219A priority Critical patent/GB138671A/en
Publication of GB138671A publication Critical patent/GB138671A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00Compasses; 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)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

138,671. Whyte, W. D. Jan. 15, 1919. Compasses, magnetic.-Mariners' compasses of the liquid type have a flange a which is hollowed out to form a circumferential groove b and stepped to form a bezel ring e, the surfaces c', c<2> of the bezel ring and groove respectively being inclined so that air bubbles within the bowl move into the groove. As shown, the bowl has a glass bottom and a screw plug f which, as described in Specification 138,672, allows the bowl to be filled from below.
GB106219A 1919-01-15 1919-01-15 Improvements in the mariner's compass Expired GB138671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB106219A GB138671A (en) 1919-01-15 1919-01-15 Improvements in the mariner's compass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB106219A GB138671A (en) 1919-01-15 1919-01-15 Improvements in the mariner's compass

Publications (1)

Publication Number Publication Date
GB138671A true GB138671A (en) 1920-02-19

Family

ID=9715496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB106219A Expired GB138671A (en) 1919-01-15 1919-01-15 Improvements in the mariner's compass

Country Status (1)

Country Link
GB (1) GB138671A (en)

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