FR496559A - Indicateur de niveau pouvant etre adapté aux aéroplanes, dirigeables ou appareils similaires - Google Patents

Indicateur de niveau pouvant etre adapté aux aéroplanes, dirigeables ou appareils similaires

Info

Publication number
FR496559A
FR496559A FR496559DA FR496559A FR 496559 A FR496559 A FR 496559A FR 496559D A FR496559D A FR 496559DA FR 496559 A FR496559 A FR 496559A
Authority
FR
France
Prior art keywords
airships
airplanes
similar devices
level indicator
indicator
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
English (en)
Inventor
James Edward Marshall
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
Application granted granted Critical
Publication of FR496559A publication Critical patent/FR496559A/fr
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
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/16—Measuring inclination, e.g. by clinometers, by levels by using more than one pendulum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/34—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble of the tubular type, i.e. for indicating the level in one direction only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR496559D 1918-06-13 1918-06-13 Indicateur de niveau pouvant etre adapté aux aéroplanes, dirigeables ou appareils similaires Expired FR496559A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR496559T 1918-06-13

Publications (1)

Publication Number Publication Date
FR496559A true FR496559A (fr) 1919-11-11

Family

ID=1531970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR496559D Expired FR496559A (fr) 1918-06-13 1918-06-13 Indicateur de niveau pouvant etre adapté aux aéroplanes, dirigeables ou appareils similaires

Country Status (1)

Country Link
FR (1) FR496559A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551338A (en) * 1949-09-08 1951-05-01 Johnnie C Rogers Liquid-level flight indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551338A (en) * 1949-09-08 1951-05-01 Johnnie C Rogers Liquid-level flight indicator

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