FR49999E - Improvements to gyroscopic devices - Google Patents

Improvements to gyroscopic devices

Info

Publication number
FR49999E
FR49999E FR49999DA FR49999E FR 49999 E FR49999 E FR 49999E FR 49999D A FR49999D A FR 49999DA FR 49999 E FR49999 E FR 49999E
Authority
FR
France
Prior art keywords
gyroscopic devices
gyroscopic
devices
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
Other languages
French (fr)
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.)
Sperry Gyroscope Co Ltd
Sperry Gyroscope Co Inc
Original Assignee
Sperry Gyroscope Co Ltd
Sperry Gyroscope Co Inc
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 Sperry Gyroscope Co Ltd, Sperry Gyroscope Co Inc filed Critical Sperry Gyroscope Co Ltd
Application granted granted Critical
Publication of FR49999E publication Critical patent/FR49999E/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
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/34—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes
    • G01C19/38—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR49999D 1938-11-29 1938-11-29 Improvements to gyroscopic devices Expired FR49999E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR49999T 1938-11-29

Publications (1)

Publication Number Publication Date
FR49999E true FR49999E (en) 1939-09-29

Family

ID=8685063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR49999D Expired FR49999E (en) 1938-11-29 1938-11-29 Improvements to gyroscopic devices

Country Status (1)

Country Link
FR (1) FR49999E (en)

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