GB199988A - Improvements in mariners' compasses - Google Patents

Improvements in mariners' compasses

Info

Publication number
GB199988A
GB199988A GB2404022A GB2404022A GB199988A GB 199988 A GB199988 A GB 199988A GB 2404022 A GB2404022 A GB 2404022A GB 2404022 A GB2404022 A GB 2404022A GB 199988 A GB199988 A GB 199988A
Authority
GB
United Kingdom
Prior art keywords
mariners
compasses
heath
support
discs
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
GB2404022A
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 GB2404022A priority Critical patent/GB199988A/en
Publication of GB199988A publication Critical patent/GB199988A/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

Abstract

199,988. Heath, G. W., and Heath, G. A. Sept. 5, 1922. Mariners' compasses.-In a liquid compass in which the float chamber communicates with an expansion chamber formed of corrugated discs caxrying the bottom glass, a glass plate k, carrying a support i for the pivot of the card, is mounted above the discs, and holes s, q formed in the plate k or its supporting frame, and in the support i respectively provide the communication between the chambers.
GB2404022A 1922-09-05 1922-09-05 Improvements in mariners' compasses Expired GB199988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2404022A GB199988A (en) 1922-09-05 1922-09-05 Improvements in mariners' compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2404022A GB199988A (en) 1922-09-05 1922-09-05 Improvements in mariners' compasses

Publications (1)

Publication Number Publication Date
GB199988A true GB199988A (en) 1923-07-05

Family

ID=10205419

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2404022A Expired GB199988A (en) 1922-09-05 1922-09-05 Improvements in mariners' compasses

Country Status (1)

Country Link
GB (1) GB199988A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738591A (en) * 1952-11-07 1956-03-20 Nye S Spencer Ship's magnetic compass
GB2245063A (en) * 1990-06-11 1991-12-18 Sisteco Limited Oy Compass

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738591A (en) * 1952-11-07 1956-03-20 Nye S Spencer Ship's magnetic compass
GB2245063A (en) * 1990-06-11 1991-12-18 Sisteco Limited Oy Compass
GB2245063B (en) * 1990-06-11 1994-05-11 Sisteco Limited Oy Compass

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