GB190818510A - Attachment for Mariners' Compasses. - Google Patents

Attachment for Mariners' Compasses.

Info

Publication number
GB190818510A
GB190818510A GB190818510DA GB190818510A GB 190818510 A GB190818510 A GB 190818510A GB 190818510D A GB190818510D A GB 190818510DA GB 190818510 A GB190818510 A GB 190818510A
Authority
GB
United Kingdom
Prior art keywords
casing
compasses
prism
attachment
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
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
LOUIS WENTWORTH PAKINGTON CHET
Original Assignee
KELVIN AND JAMES WHITE Ltd
LOUIS WENTWORTH PAKINGTON CHET
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, LOUIS WENTWORTH PAKINGTON CHET filed Critical KELVIN AND JAMES WHITE Ltd
Application granted granted Critical
Publication of GB190818510A publication Critical patent/GB190818510A/en
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Treatment Devices (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

18,510. Chetwynd, L. W. P., Kelvin & J. White, and Clark, F. W. Sept. 3. [Cognate Application No. 4339, A.D. 1909, dat d Feb. 22.] Compasses, magnetic.-An attachment for mariners' compasses to enclose the steering or bearing prism and protect it, together with the portion of the compass glass below, from deposit of moisture or the like comprises a casing or hood A having an open or transparent base and an open or transparent side I, the base being adapted through a depending rib F and packing-material G to bear lightly on the outer surface of the compass glass H. Means, such as an arm L engaging with an indented segmental strip M, are provided for angularly adjusting the pivoted prism J from outside the casing. Instead of being pivoted, the prism may be rendered adjustable by having projecting pins on its containing frame K engaging in a curled slot in the casing. In another form the whole attachment is rendered rotatable relatively to the compass bowl. Specifications Nos. 18,509 and 20,185, A.D. 1908, are referred to.
GB190818510D 1908-09-03 1908-09-03 Attachment for Mariners' Compasses. Expired GB190818510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190818510T 1908-09-03

Publications (1)

Publication Number Publication Date
GB190818510A true GB190818510A (en) 1909-07-01

Family

ID=32438619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190818510D Expired GB190818510A (en) 1908-09-03 1908-09-03 Attachment for Mariners' Compasses.

Country Status (1)

Country Link
GB (1) GB190818510A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498768A (en) * 1950-02-28 Pelorus having adjustable prism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498768A (en) * 1950-02-28 Pelorus having adjustable prism

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