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GB1454275A - Sighting discs particularly for surveying - Google Patents

Sighting discs particularly for surveying

Info

Publication number
GB1454275A
GB1454275A GB5203273A GB5203273A GB1454275A GB 1454275 A GB1454275 A GB 1454275A GB 5203273 A GB5203273 A GB 5203273A GB 5203273 A GB5203273 A GB 5203273A GB 1454275 A GB1454275 A GB 1454275A
Authority
GB
United Kingdom
Prior art keywords
slidable
bar
plate
surveying
scales
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
GB5203273A
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.)
Jenoptik AG
Original Assignee
Jenoptik Jena GmbH
VEB Carl Zeiss Jena GmbH
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 Jenoptik Jena GmbH, VEB Carl Zeiss Jena GmbH filed Critical Jenoptik Jena GmbH
Publication of GB1454275A publication Critical patent/GB1454275A/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
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

1454275 Indicating apparatus CARL ZEISS JENA VEB 9 Nov 1973 [20 Nov 1972] 52032/73 Heading G1J A graduated plate for use in determining zenith and nadir points in surveying has coarse marginal scales 8 and corresponding fine scales 10, 11 which intersect at the centre of the plate. The plate de described is transparent and may be reversed, being slidable in a frame 4, 5, 6 having a removeable side 7. Mirror image numerals are provided for reading of the fine scales from both sides. The frame bears a further scale 24 for co-operation with a scale 20 on a bar 21 slidable on dovetails 13, 14 or 15, 16, the bar having point marking means 23 or a cursor 22. Illuminating means (not shown) is slidable on the keyways not used by the bar 21.
GB5203273A 1972-11-20 1973-11-09 Sighting discs particularly for surveying Expired GB1454275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD16693772A DD102807A1 (en) 1972-11-20 1972-11-20

Publications (1)

Publication Number Publication Date
GB1454275A true GB1454275A (en) 1976-11-03

Family

ID=5488966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5203273A Expired GB1454275A (en) 1972-11-20 1973-11-09 Sighting discs particularly for surveying

Country Status (5)

Country Link
CH (1) CH558931A (en)
DD (1) DD102807A1 (en)
DE (1) DE7328287U (en)
GB (1) GB1454275A (en)
HU (1) HU167889B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734643B1 (en) * 1995-05-23 1998-01-30 Soc Et Rech Et Const Electroni METHOD AND DEVICE FOR THE PRECISE LOCATION OF POINTS ON THE SURFACE OF THE EARTH BY RADIO-SATELLITE LOCATION

Also Published As

Publication number Publication date
CH558931A (en) 1975-02-14
DD102807A1 (en) 1973-12-20
HU167889B (en) 1975-12-25
DE7328287U (en) 1973-12-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee