GB191313031A - Adjusting Screw Devices for Theodolites, Levels, and other Survey Instruments, and such like. - Google Patents

Adjusting Screw Devices for Theodolites, Levels, and other Survey Instruments, and such like.

Info

Publication number
GB191313031A
GB191313031A GB191313031DA GB191313031A GB 191313031 A GB191313031 A GB 191313031A GB 191313031D A GB191313031D A GB 191313031DA GB 191313031 A GB191313031 A GB 191313031A
Authority
GB
United Kingdom
Prior art keywords
theodolites
levels
adjusting screw
levelling
screw devices
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
Inventor
Alexander James Thornton
George Eagle
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
Application granted granted Critical
Publication of GB191313031A publication Critical patent/GB191313031A/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

Abstract

13,031. Thornton, A. J., and Eagle, G. June 5. Levelling-heads.-In an adjusting-device for the levelling-heads of theodolites, levels, &c., the levelling-screws a are provided, not with solid ball ends but with a spherical end in two parts a<2>, a<3> of which the part a<3> can move independently of the upper part under the actuation of the part c operating through the hollow bore b. In this way, the balls can engage the tribrach sockets with a good fit.
GB191313031D 1913-06-05 1913-06-05 Adjusting Screw Devices for Theodolites, Levels, and other Survey Instruments, and such like. Expired GB191313031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191313031T 1913-06-05

Publications (1)

Publication Number Publication Date
GB191313031A true GB191313031A (en) 1914-04-30

Family

ID=32371426

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191313031D Expired GB191313031A (en) 1913-06-05 1913-06-05 Adjusting Screw Devices for Theodolites, Levels, and other Survey Instruments, and such like.

Country Status (1)

Country Link
GB (1) GB191313031A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109883390A (en) * 2019-02-22 2019-06-14 广州市加简派电子科技有限公司 A kind of theodolite of the stabilization for building engineering construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109883390A (en) * 2019-02-22 2019-06-14 广州市加简派电子科技有限公司 A kind of theodolite of the stabilization for building engineering construction

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