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GB294456A - Improvements in leveling devices - Google Patents

Improvements in leveling devices

Info

Publication number
GB294456A
GB294456A GB750628A GB750628A GB294456A GB 294456 A GB294456 A GB 294456A GB 750628 A GB750628 A GB 750628A GB 750628 A GB750628 A GB 750628A GB 294456 A GB294456 A GB 294456A
Authority
GB
United Kingdom
Prior art keywords
sphere
rings
levelling
boss
instrument
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
GB750628A
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 GB750628A priority Critical patent/GB294456A/en
Publication of GB294456A publication Critical patent/GB294456A/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
    • G01C5/02—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels involving automatic stabilisation of the line of sight

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

294,456. Marks, E. C. R., (Borda, C. J.). March 10, 1928. Levelling-heads.-A levelling-head comprises a bracket 10 secured to the head of a tripod 1 and formed at its free end with a solid ring 13 and split rings 14, 15. The inner surfaces of the rings are of spherical form and support a spherical member 21 formed with a flattened surface 23 and a boss 24 for attaching the instrument to be levelled. At a point diametrically opposite the boss 24 the sphere is tapped to receive a rod 26 having at its lower end a pendulum weight 27. The free ends of the rings 14, 15 are provided with ears 16, 17 receiving a clamping- screw 29 by which the sphere can be clamped after the instrument has assumed the level position under the action of the pendulum. Ball bearings 22 are provided between the ring 13 and sphere 21.
GB750628A 1928-03-10 1928-03-10 Improvements in leveling devices Expired GB294456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB750628A GB294456A (en) 1928-03-10 1928-03-10 Improvements in leveling devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB750628A GB294456A (en) 1928-03-10 1928-03-10 Improvements in leveling devices

Publications (1)

Publication Number Publication Date
GB294456A true GB294456A (en) 1928-07-26

Family

ID=9834415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB750628A Expired GB294456A (en) 1928-03-10 1928-03-10 Improvements in leveling devices

Country Status (1)

Country Link
GB (1) GB294456A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219651A (en) * 1988-05-20 1989-12-13 Diehl Gmbh & Co A stand device for a mine.
WO1998050728A1 (en) * 1997-05-06 1998-11-12 Roland Krautloher Orientation device
EP4026669A4 (en) * 2019-09-02 2023-11-01 Kawasaki Jukogyo Kabushiki Kaisha BALL JOINT AND ROBOT JOINT STRUCTURE WITH IT

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219651A (en) * 1988-05-20 1989-12-13 Diehl Gmbh & Co A stand device for a mine.
US4922824A (en) * 1988-05-20 1990-05-08 Diehl Gmbh & Co. Stand device for a mine
GB2219651B (en) * 1988-05-20 1991-12-18 Diehl Gmbh & Co A stand device for a mine
WO1998050728A1 (en) * 1997-05-06 1998-11-12 Roland Krautloher Orientation device
US6328269B1 (en) 1997-05-06 2001-12-11 Roland Krautloher Orientation device
EP4026669A4 (en) * 2019-09-02 2023-11-01 Kawasaki Jukogyo Kabushiki Kaisha BALL JOINT AND ROBOT JOINT STRUCTURE WITH IT

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