GB1114233A - Surveyors' level - Google Patents

Surveyors' level

Info

Publication number
GB1114233A
GB1114233A GB4795963A GB4795963A GB1114233A GB 1114233 A GB1114233 A GB 1114233A GB 4795963 A GB4795963 A GB 4795963A GB 4795963 A GB4795963 A GB 4795963A GB 1114233 A GB1114233 A GB 1114233A
Authority
GB
United Kingdom
Prior art keywords
stem
sleeve
electrode head
fed
lead screw
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
GB4795963A
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
Priority to GB4795963A priority Critical patent/GB1114233A/en
Publication of GB1114233A publication Critical patent/GB1114233A/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
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

1, 114, 233. Levels. H. C. PARTEN. Jan. 19, 1965 [Dec. 4, 1963], No.47959/63. Heading G1F. In a surveyor's level which is equipped with means for vertically displacing the optical sighting axis through a substantial distance, a digital system is provided for measuring the displacement which displays and/or records the readings. As shown, a sleeve 11 is mounted at one end on a tripod 13, bearings 11a 11b in the sleeve 11 journalling a nut 14, which is rotatable to displace a hollow lead screw 16 which is guided by a cross-slide 17 movable on guide bars 18 connected to the sleeve 11. The lead screw 16 is internally coupled to a stem 22 moved upwardly and downwardly by a cable system 33, 35 and 23, 27 the stem being connected through the cable system to an electrode head 36. A shaft 37, mounted on the electrode head, is provided with annular rings which are fed with A. C. current such that, as the electrode head 36 is displaced over the rings during upward or downward movement of apparatus, the induced signals are fed to a recording device or taped. The telescope may be mounted on the upper end of the stem 22, or alternatively it may be attached at a fixed height and the reflector system movably mounted on the stem.
GB4795963A 1963-12-04 1963-12-04 Surveyors' level Expired GB1114233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4795963A GB1114233A (en) 1963-12-04 1963-12-04 Surveyors' level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4795963A GB1114233A (en) 1963-12-04 1963-12-04 Surveyors' level

Publications (1)

Publication Number Publication Date
GB1114233A true GB1114233A (en) 1968-05-22

Family

ID=10446856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4795963A Expired GB1114233A (en) 1963-12-04 1963-12-04 Surveyors' level

Country Status (1)

Country Link
GB (1) GB1114233A (en)

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