GB268470A - Improvements in instruments for instruction in the use of range and heightfinders - Google Patents

Improvements in instruments for instruction in the use of range and heightfinders

Info

Publication number
GB268470A
GB268470A GB137526A GB137526A GB268470A GB 268470 A GB268470 A GB 268470A GB 137526 A GB137526 A GB 137526A GB 137526 A GB137526 A GB 137526A GB 268470 A GB268470 A GB 268470A
Authority
GB
United Kingdom
Prior art keywords
range
collimator
finder
target
prism
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
GB137526A
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.)
EDWARD TAYLOR HANSON
KNIGHTLEY FLETCHER DUNSTERVILL
Original Assignee
EDWARD TAYLOR HANSON
KNIGHTLEY FLETCHER DUNSTERVILL
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 EDWARD TAYLOR HANSON, KNIGHTLEY FLETCHER DUNSTERVILL filed Critical EDWARD TAYLOR HANSON
Priority to GB137526A priority Critical patent/GB268470A/en
Publication of GB268470A publication Critical patent/GB268470A/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
    • G01C3/20—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 adaptation to the measurement of the height of an object

Landscapes

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

Abstract

268,470. Hanson, E. T., and Dunsterville, K. F. Jan. 18, 1926. Range-finders.- Instructional apparatus for teaching observers the use of range and heightfinders in a limited space consists of a combination of a range or heighb-finder 1 with a collimator 6 near to which is mounted a target 9 such as a photographic miniature. The light from the target 9 passes into the collimator 6 and thence into the rangefinder 1. The range or height-finder I is mounted on a pedestal 2 to move independently in azimuth in relation to the collimator 6, which is carried in brackets 5 counterbalanced by weights 7. The range-finder 1 turns in ball bearings in the rings 4. An ordinary range-finder having the ordinary centre prism combination replaced by a half silvered prism 8 may be used as the collimator and the deflecting prism reversed and operated bv gearing so that movement of the collimator simulates a target flying at a constant height.
GB137526A 1926-01-18 1926-01-18 Improvements in instruments for instruction in the use of range and heightfinders Expired GB268470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB137526A GB268470A (en) 1926-01-18 1926-01-18 Improvements in instruments for instruction in the use of range and heightfinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB137526A GB268470A (en) 1926-01-18 1926-01-18 Improvements in instruments for instruction in the use of range and heightfinders

Publications (1)

Publication Number Publication Date
GB268470A true GB268470A (en) 1927-04-07

Family

ID=9720910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB137526A Expired GB268470A (en) 1926-01-18 1926-01-18 Improvements in instruments for instruction in the use of range and heightfinders

Country Status (1)

Country Link
GB (1) GB268470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114061551A (en) * 2021-10-19 2022-02-18 中建钢构工程有限公司 Prism device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114061551A (en) * 2021-10-19 2022-02-18 中建钢构工程有限公司 Prism device

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