GB131687A - Improvements in Appparatus for Use in Steering Aircraft - Google Patents

Improvements in Appparatus for Use in Steering Aircraft

Info

Publication number
GB131687A
GB131687A GB1257718A GB1257718A GB131687A GB 131687 A GB131687 A GB 131687A GB 1257718 A GB1257718 A GB 1257718A GB 1257718 A GB1257718 A GB 1257718A GB 131687 A GB131687 A GB 131687A
Authority
GB
United Kingdom
Prior art keywords
pointer
frame
lubber line
hughes
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
GB1257718A
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 filed Critical
Priority to GB1257718A priority Critical patent/GB131687A/en
Publication of GB131687A publication Critical patent/GB131687A/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

131,687. Hughes, A. J., and Hughes & Son, H. Aug. 1, 1918. Magnetic compasses.-A compass for use in steering aircraft is provided with an adjustable lubber line adapted to be set to allow for drift on an out-and-home course. A circular frame D, rotatable on the bezel of the compass, carries pointers E, F at an angle of 180 degrees to one another. Two segmental frames H<11>, J<11>, adjustable on the frame D, are each provided with a fixed pointer N and a movable one L. The zero of the graduations on the fixed bezel is set on the fore-and-aft axis of the machine. In use, the frame D and its pointers are set for the magnetic ground course as shown in the figure, the frame H" (say) is next moved so that the pointer N contacts with pointer E, and the pointer L is adjusted according to the drift angle, which may be determined by the device described in Specification 131,688. The pointer L then serves as the lubber line for the outward journey. On the homeward journey the frame H" is swung round until the pointer L contacts with the pointer F, and the pointer N is then used as the lubber line.
GB1257718A 1918-08-01 1918-08-01 Improvements in Appparatus for Use in Steering Aircraft Expired GB131687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1257718A GB131687A (en) 1918-08-01 1918-08-01 Improvements in Appparatus for Use in Steering Aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1257718A GB131687A (en) 1918-08-01 1918-08-01 Improvements in Appparatus for Use in Steering Aircraft

Publications (1)

Publication Number Publication Date
GB131687A true GB131687A (en) 1919-09-04

Family

ID=1725238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257718A Expired GB131687A (en) 1918-08-01 1918-08-01 Improvements in Appparatus for Use in Steering Aircraft

Country Status (1)

Country Link
GB (1) GB131687A (en)

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