Aid to Survey Practice for Reference in Surveying, Levelling, and Setting OutC. Lockwood and Company, 1880 - 382 pages |
From inside the book
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Page xv
... Right angles , détours , intervals , tie - lines Chaining on an inclination Traversing with the chain Mode of record 82 83 85 86 88 93 94 95 3. Telemeter - Surveys . General mode of procedure Special application Form of record 4. Plane ...
... Right angles , détours , intervals , tie - lines Chaining on an inclination Traversing with the chain Mode of record 82 83 85 86 88 93 94 95 3. Telemeter - Surveys . General mode of procedure Special application Form of record 4. Plane ...
Page 18
... right angles , both turning together in the same vertical plane , and have their common turning axis at a known fixed height above a horizontal scale , placed parallel to the telescope , on which the microscope reads . When the ...
... right angles , both turning together in the same vertical plane , and have their common turning axis at a known fixed height above a horizontal scale , placed parallel to the telescope , on which the microscope reads . When the ...
Page 32
... angles observed with it . 1. From want of perfect parallelism of the ... right . In the meantime , however , the instrument may be used if the ... angle is observed , the angle A'OB ' will be read instead of AOB . Let the values of these ...
... angles observed with it . 1. From want of perfect parallelism of the ... right . In the meantime , however , the instrument may be used if the ... angle is observed , the angle A'OB ' will be read instead of AOB . Let the values of these ...
Page 33
... right angle ; let the angles EOA = D , EOB = D ' , EOA ' = 8 , EOB ' then since sin 90 ° = 1 , and cos 90 ° = 0 , = cos Dcos 8 sin and cos D ' = cos & sin B B D D FIGURE 5 . INSTRUMENTAL CORRECTION FOR THEodolite . But as in the ...
... right angle ; let the angles EOA = D , EOB = D ' , EOA ' = 8 , EOB ' then since sin 90 ° = 1 , and cos 90 ° = 0 , = cos Dcos 8 sin and cos D ' = cos & sin B B D D FIGURE 5 . INSTRUMENTAL CORRECTION FOR THEodolite . But as in the ...
Page 35
... angles taken with the instru- ment . Should the mounting of the telescope be of the transit theodolite pattern , the telescope bearings or trunnions may be a little worn , and this deviation of the turning axis from the horizontal may ...
... angles taken with the instru- ment . Should the mounting of the telescope be of the transit theodolite pattern , the telescope bearings or trunnions may be a little worn , and this deviation of the turning axis from the horizontal may ...
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Aid to Survey Practice for Reference in Surveying, Levelling, and Setting Out Lowis D'Aguilar Jackson No preview available - 2016 |
Common terms and phrases
Absc Abscissa accuracy adjustment adopted altitude amount angular measurement angular observation appliances astronomical observations axis azimuth base line bearings calculation centre chain surveys chord chronometer collimation compass convenient correct corresponding cosec cotg curvature curve determined difference direction distant point equal error feet figure fixed formulæ given graduated Greenwich mean ground Gunter's chains height hence horizontal angle inch instru instrument latitude length level-staff longitude lunar distance marked mean ment meridian method micrometer mile mode Nautical Almanac necessary object obtained operations Ordinate parallax pegs plane pole position principle purposes radii radius reading recorded reduced reflecting refraction right angles right ascensions route-surveys scale screws Section set-out setting-out sextant side sights sin² spherical spherical excess staff station staves subtended superelevation survey line surveyor tangent tangent point telemeter telescope theodolite tion transit traverse triangles Trigonometrical Trigonometrical Survey vertical wires
Popular passages
Page 21 - Those interested in the purchase and sale of estates, and in the adjustment of compensation cases, as well as in transactions in annuities, life insurances, &c., will find the present edition of eminent service.'* — Engineering.
Page 12 - A KEY AND COMPANION to the above Book, forming an extensive repository of Solved Examples and Problems in Illustration of the various Expedients necessary in Algebraical Operations.
Page 6 - Levelling. A TREATISE ON THE PRINCIPLES AND PRACTICE OF LEVELLING. Showing its Application to purposes of Railway and Civil Engineering, in the Construction of Roads; with Mr. TELFORD'S Rules for the same. By FREDERICK W. SIMMS, FGS, M. Inst. CE...
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Page 9 - AN OUTLINE OF THE METHOD OF CONDUCTING A TRIGONOMETRICAL SURVEY. For the Formation of Geographical and Topographical Maps and Plans, Military Reconnaissance, LEVELLING, &c., with Useful Problems, Formulae, and Tables.
Page 16 - FRENCH. ~~ 24. French Grammar. With Complete and Concise Rules on the Genders of French Nouns. By GL STRAUSS, Ph.D. is 6d 25.
Page 16 - Spanish-English and English-Spanish Dictionary. Including a large number of Technical Terms used in Mining, Engineering, &c., with the proper Accents and the Gender of every Noun. By ALFRED ELWES.
Page 11 - Diagrams. i8mo, 2s. 6d. cloth. " As a really handy book for reference, we know of no work equal to it ; and the railway engineers and others employed in the measurement and calculation of earthwork will find a great amount of practical information very admirably arranged, and available for general or rough estimates, as well as for the more exact calculations required in the engineers
Page 7 - Professor Goodeve has given us a treatise on the steam engine, which will bear comparison with anything written by Huxley or Maxwell, and we can award it no higher praise.
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