US616A - Artificial horizon foe - Google Patents

Artificial horizon foe Download PDF

Info

Publication number
US616A
US616A US616DA US616A US 616 A US616 A US 616A US 616D A US616D A US 616DA US 616 A US616 A US 616A
Authority
US
United States
Prior art keywords
artificial horizon
foe
horizon
tube
liquid
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 - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US616A publication Critical patent/US616A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C1/00—Measuring angles
    • G01C1/08—Sextants
    • G01C1/10—Sextants including an artificial horizon
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Definitions

  • This semi-circular tube will contain a column of colored liquid nearly as long as the glass tube, or of such lengths that its two ends will always be in the same plane with the sight, which will be in the center of the chord of the curve formed by the column of liquid.
  • a communication is had from one end of the glass tube to the other through the metallic tube so that the air above the liquid may pass from one side to the other, as the liquid rises or falls in the tube.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Insulators (AREA)

Description

UNITED 'STATES PATENT namen.
CHARLES GOULDING, OF MOBILE, ALABAMA.
ARTIFICIAL HORIZON FOR QUADRANTS AND SEXTANTS.
Specification of Letters Patent No. 616, dated February 24, 1838.
T0 all whom 'it may concern A Be it known that I, CHARLES GOULDING, of the city and county of Mobile and State of Alabama, have invented a new and useful improvement, being an artificial horizon attached to the quadrant o-r seXtant for taking the suns altitude and giving the true latitude of a place without seeing the real horizon, either at sea or elsewhere, called Gouldings artificial horizon for quadrants,7 which is described as follows, reference being had to the annexed drawings of the same, making part o-f this specification. I make use of a semi-circular glass tube G Figure l, whose ends are united by a straight metallic tube I-I which is fastened to the side of the quadrant by suitable arms or braces. This semi-circular tube will contain a column of colored liquid nearly as long as the glass tube, or of such lengths that its two ends will always be in the same plane with the sight, which will be in the center of the chord of the curve formed by the column of liquid. A communication is had from one end of the glass tube to the other through the metallic tube so that the air above the liquid may pass from one side to the other, as the liquid rises or falls in the tube.
To apply this improvement for taking the suns altitude-with the quadrants, having ad- ]usted the several glasses, turn your face .toward the sun holding the instrument with your right hand, in a vertical position, put your eye close to the sight or vane I and view the artificial horizon, (which will lbe the surface of the liquid in the tube).
through the transparent part` of the. horizon glass, at the same time moving the index s tion of the suns altitude, for determining enable navigators to take a correct observathe correct latitude in 'those cases (which CHAS. GOULDING.
l/Vitnesses: v
JAMES I-I. WEED, WM. BISHOP.
US616D Artificial horizon foe Expired - Lifetime US616A (en)

Publications (1)

Publication Number Publication Date
US616A true US616A (en) 1838-02-24

Family

ID=2060898

Family Applications (1)

Application Number Title Priority Date Filing Date
US616D Expired - Lifetime US616A (en) Artificial horizon foe

Country Status (1)

Country Link
US (1) US616A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010010523A1 (en) * 1999-02-01 2001-08-02 Sezan M. Ibrahim Audiovisual information management system
US20020042637A1 (en) * 2000-10-11 2002-04-11 Stover Howard H. Antenna for miniature implanted medical device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010010523A1 (en) * 1999-02-01 2001-08-02 Sezan M. Ibrahim Audiovisual information management system
US20020042637A1 (en) * 2000-10-11 2002-04-11 Stover Howard H. Antenna for miniature implanted medical device

Similar Documents

Publication Publication Date Title
Clark Plane and geodetic surveying for engineers: Plane surveying
US2266741A (en) Panoramic sextant
US3191306A (en) Combination compass-clinometer and hand level
US616A (en) Artificial horizon foe
US2058998A (en) Surveying rod
US187432A (en) Improvement in collimating sights for fire-arms
US1852166A (en) Position finder
US527640A (en) Heliograph attachment
US3664747A (en) Sight-taking periscope
US526021A (en) Pocket-transit
US2445499A (en) Refractometer based on the principle of total reflections
Reeves Hints to travellers: scientific and general
US7477A (en) Collimatibtg level
Hughes The book of the sextant: with ancient and modern instruments of navigation
GB191101024A (en) Improvements in Navigational Instruments.
US994061A (en) Angle-measuring instrument.
US703139A (en) Stellar compass and great-circle-course projector.
US876604A (en) Combination of means for surveying and navigation.
AT27187B (en) Device on hand-held telescopes for measuring the angle that the line of sight forms with the plumb line or the magnetic meridian after the observed point.
US2108042A (en) Navigational instrument
DE479874C (en) Angle measuring device, sextant, octant or the like.
US627638A (en) Folding mine-transit.
US2395559A (en) Navigation instrument, including a horizon attachment
US552002A (en) Meridian-determining device or attachment for surveyors compasses
Back Hints to Travellers