GB148635A – Improvements in or relating to clinometers or other devices including means for obtaining a fiduciary horizontal plane of reference
– Google Patents
GB148635A – Improvements in or relating to clinometers or other devices including means for obtaining a fiduciary horizontal plane of reference
– Google Patents
Improvements in or relating to clinometers or other devices including means for obtaining a fiduciary horizontal plane of reference
Info
Publication number
GB148635A
GB148635A
GB1058719A
GB1058719A
GB148635A
GB 148635 A
GB148635 A
GB 148635A
GB 1058719 A
GB1058719 A
GB 1058719A
GB 1058719 A
GB1058719 A
GB 1058719A
GB 148635 A
GB148635 A
GB 148635A
Authority
GB
United Kingdom
Prior art keywords
tube
clinometers
indicator
circuits
contacts
Prior art date
1919-04-29
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
GB1058719A
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.)
GERALD MERTON
Original Assignee
GERALD MERTON
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.)
1919-04-29
Filing date
1919-04-29
Publication date
1920-07-29
1919-04-29
Application filed by GERALD MERTON
filed
Critical
GERALD MERTON
1919-04-29
Priority to GB1058719A
priority
Critical
patent/GB148635A/en
1920-07-29
Publication of GB148635A
publication
Critical
patent/GB148635A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
Abstract
148,635. Merton, G. April 29, 1919. Clinometers; horizons, artificial. – Relates to means for obtaining a fiduciary horizontal plane in sighting clinometers or other instruments for measuring angles relatively to the horizontal. The instrument comprises a sighting – telescope 1 to which is attached a handle .5 and a scale-plate 3 on which is pivoted an indicator 9 carrying a vernier 10. Mounted on the indicator 9 is a tube 22 containing mercury 23 and projecting into this tube are contacts 25, 26, 27 the contact 25 being adjustable, in the arrangement shown, by the screw 32. These contacts are arranged in the circuits of lamps 49, 50 arranged to project their light into the telescope 1, the arrangement being such that when the tube 22 is level both circuits are open or both closed but when the tube becomes inclined only one of the circuits is closed. The current for the lamps may be supplied by a battery within the handle 5. The indicator 9 can be clamped by a screw 11, a screw 20 being provided for fine adjustment. A second tube similar to the tube 22 but at right-angles to it may be provided to enable the observer to hold the instrument in a vertical plane. The levelling-device may also be applied to other instruments requiring to be maintained in the horizontal position, the contacts being in such cases connected to suitable controlling-means.
GB1058719A
1919-04-29
1919-04-29
Improvements in or relating to clinometers or other devices including means for obtaining a fiduciary horizontal plane of reference
Expired
GB148635A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB1058719A
GB148635A
(en)
1919-04-29
1919-04-29
Improvements in or relating to clinometers or other devices including means for obtaining a fiduciary horizontal plane of reference
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1058719A
GB148635A
(en)
1919-04-29
1919-04-29
Improvements in or relating to clinometers or other devices including means for obtaining a fiduciary horizontal plane of reference
Publications (1)
Publication Number
Publication Date
GB148635A
true
GB148635A
(en)
1920-07-29
Family
ID=9970568
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1058719A
Expired
GB148635A
(en)
1919-04-29
1919-04-29
Improvements in or relating to clinometers or other devices including means for obtaining a fiduciary horizontal plane of reference
Country Status (1)
Country
Link
GB
(1)
GB148635A
(en)
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2417573A
(en)
*
1943-04-07
1947-03-18
Honeywell Regulator Co
Means for stabilizing gyro devices
US2472420A
(en)
*
1949-06-07
Touch signal level
US2569796A
(en)
*
1945-06-16
1951-10-02
Richardson O Browning
Pendulum inclinometer for sighting instruments
US2592941A
(en)
*
1949-09-03
1952-04-15
Brunson Instr Company Inc
Apparatus for determining location of bubbles in tubes in level instruments
US2785466A
(en)
*
1954-12-21
1957-03-19
Eugene L Foster
Stadia topograph
US3196552A
(en)
*
1962-11-19
1965-07-27
Paul T Richards
Carpenter’s level with electrical indication
1919
1919-04-29
GB
GB1058719A
patent/GB148635A/en
not_active
Expired
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2472420A
(en)
*
1949-06-07
Touch signal level
US2417573A
(en)
*
1943-04-07
1947-03-18
Honeywell Regulator Co
Means for stabilizing gyro devices
US2569796A
(en)
*
1945-06-16
1951-10-02
Richardson O Browning
Pendulum inclinometer for sighting instruments
US2592941A
(en)
*
1949-09-03
1952-04-15
Brunson Instr Company Inc
Apparatus for determining location of bubbles in tubes in level instruments
US2785466A
(en)
*
1954-12-21
1957-03-19
Eugene L Foster
Stadia topograph
US3196552A
(en)
*
1962-11-19
1965-07-27
Paul T Richards
Carpenter’s level with electrical indication
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None