GB148306A - Instrument for measuring distances - Google Patents
Instrument for measuring distancesInfo
- 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
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.
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)
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 |
-
1920
- 1920-07-09 GB GB20218/20A patent/GB148306A/en not_active Expired
Cited By (3)
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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