GB761335A - Improvements in and relating to measuring apparatus - Google Patents

Improvements in and relating to measuring apparatus

Info

Publication number
GB761335A
GB761335A GB35543/54A GB3554354A GB761335A GB 761335 A GB761335 A GB 761335A GB 35543/54 A GB35543/54 A GB 35543/54A GB 3554354 A GB3554354 A GB 3554354A GB 761335 A GB761335 A GB 761335A
Authority
GB
United Kingdom
Prior art keywords
instrument
screw
levelling
dec
springs
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
GB35543/54A
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.)
Rheinmetall Air Defence AG
Original Assignee
Contraves AG
Oerlikon Contraves AG
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 Contraves AG, Oerlikon Contraves AG filed Critical Contraves AG
Publication of GB761335A publication Critical patent/GB761335A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • 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)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Abstract

761,335. Mountings for optical instruments, levelling heads. CONTRAVES AKT.-GES. Dec. 8, 1954 [Dec. 15, 1953], No. 35543/54. Classes 97(1) and 97(2) A measuring, instrument such as a surveying instrument 2 is connected to, stand 1 by a resilient diaphragm plate 16, so that it is not displaced laterally during levelling. Preferably, the diaphragm 16 is an annulus of spring steel sheet, and si clamped at its upper and outer edges by bolts, 15, 21. and clamping rings 14, 22, respectively. Three levelling screws 17 are provided and springs 25 take up the play in the threads of screws 17 and, when the deformation of the plate 16 in the area of a screw 17 is such that the screw does not bear any of the weight of the instrument, the'springs 25 prevent the instrument 2 from being lifted off the screw.
GB35543/54A 1953-12-15 1954-12-08 Improvements in and relating to measuring apparatus Expired GB761335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH761335X 1953-12-15

Publications (1)

Publication Number Publication Date
GB761335A true GB761335A (en) 1956-11-14

Family

ID=4534717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35543/54A Expired GB761335A (en) 1953-12-15 1954-12-08 Improvements in and relating to measuring apparatus

Country Status (1)

Country Link
GB (1) GB761335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060583A (en) * 1960-06-27 1962-10-30 Bell Telephone Labor Inc Compensating arrangements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060583A (en) * 1960-06-27 1962-10-30 Bell Telephone Labor Inc Compensating arrangements

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