GB1303938A - - Google Patents

Info

Publication number
GB1303938A
GB1303938A GB1303938DA GB1303938A GB 1303938 A GB1303938 A GB 1303938A GB 1303938D A GB1303938D A GB 1303938DA GB 1303938 A GB1303938 A GB 1303938A
Authority
GB
United Kingdom
Prior art keywords
telescope
axis
shaft
screws
holes
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
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 filed Critical
Publication of GB1303938A publication Critical patent/GB1303938A/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
    • G01C1/00—Measuring angles
    • G01C1/02—Theodolites

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

1303938 Geodetic instruments CARL ZEISS JENA VEB 2 Nov 1971 50887/71 Heading G1F [Also in Division G2] In a geodetic instrument, for example a theodolite, a telescope 10 is rigidly mounted, by screws 12, to a single hollow shaft 6 which rotates within supports 2, 3 about a horizontal axis XX. A graduated circle 7 measures the resulting angle of tilt. Optical axis OO and axis XX intersect on a vertical axis YY about which the telescope rotates, angles about this axis YY being determined by an alidade 1. Holes 11 in the shaft 6 permit light to pass down the telescope 10. Dismantling is facilitated by removing a cover 9 and screws 12 thereby allowing withdrawal of the shaft 6. In a modification the dimensions are such that the telescope 10 passes through holes in the shaft 6.
GB1303938D 1971-11-02 1971-11-02 Expired GB1303938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5088771 1971-11-02

Publications (1)

Publication Number Publication Date
GB1303938A true GB1303938A (en) 1973-01-24

Family

ID=10457790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1303938D Expired GB1303938A (en) 1971-11-02 1971-11-02

Country Status (1)

Country Link
GB (1) GB1303938A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees