GB148306A - Instrument for measuring distances - Google Patents

Instrument for measuring distances

Info

Publication number
GB148306A
GB148306A GB20218/20A GB2021820A GB148306A GB 148306 A GB148306 A GB 148306A GB 20218/20 A GB20218/20 A GB 20218/20A GB 2021820 A GB2021820 A GB 2021820A GB 148306 A GB148306 A GB 148306A
Authority
GB
United Kingdom
Prior art keywords
slide
telescope
fixed
graduated
sighted
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
GB20218/20A
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.)
JEAN MARIE FAGET
Original Assignee
JEAN MARIE FAGET
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 JEAN MARIE FAGET filed Critical JEAN MARIE FAGET
Publication of GB148306A publication Critical patent/GB148306A/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
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
    • G01C3/18—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument with one observation point at each end of the base

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

148,306. Faget, J. M. Oct. 30, 1916, [Convention date]. Range-finders.-Two telescopes L, L<1> are mounted on a graduated slide R, one being fixed and the other movable along the slide by means of a. screwed spindle v rotated from the graduated disk f. The fixed telescope L is mounted to rotate in a vertical plane at right-angles to the slide and is situated above the level of the telescope L<1>, so that the latter may slide beneath the former to the zero mark on the scale, which corresponds with the axis of the fixed telescope. The movable telescope is fixed on its slide at such an angle that, when placed over the unit mark on the scale, the telescope is sighted on an object at a given unit distance. To determine the range of any desired object, the fixed telescope is levelled and sighted on the object, and the movable telescope moved along the slide until the object is again sighted. The range may then be determined from the readings on the slide and graduated disk f. The apparatus is mounted to rotate on a graduated plate supported on a stand.
GB20218/20A 1916-10-30 1920-07-09 Instrument for measuring distances Expired GB148306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR148306X 1916-10-30

Publications (1)

Publication Number Publication Date
GB148306A true GB148306A (en) 1921-06-16

Family

ID=8875464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20218/20A Expired GB148306A (en) 1916-10-30 1920-07-09 Instrument for measuring distances

Country Status (1)

Country Link
GB (1) GB148306A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975522A (en) * 1959-11-03 1961-03-21 Goodyear Aircraft Corp Tooling bar
FR2468101A1 (en) * 1979-10-17 1981-04-30 Sncf Radial dimensions of tunnel measurements appts. - employs laser whose output is deviated by constant angle by rotatable mirror assembly for alignment with reference beam
EP0497683A1 (en) * 1991-01-28 1992-08-05 Young Kook Bae Distance measuring method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975522A (en) * 1959-11-03 1961-03-21 Goodyear Aircraft Corp Tooling bar
FR2468101A1 (en) * 1979-10-17 1981-04-30 Sncf Radial dimensions of tunnel measurements appts. - employs laser whose output is deviated by constant angle by rotatable mirror assembly for alignment with reference beam
EP0497683A1 (en) * 1991-01-28 1992-08-05 Young Kook Bae Distance measuring method and apparatus

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