Aid to Survey Practice for Reference in Surveying, Levelling, and Setting OutC. Lockwood and Company, 1880 - 382 pages |
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Page xii
... feet theodolites and compen- sating bars , the construction of towers and scaffolds 40 and 50 feet in height , the clearance of hill - tops , and miles of visual ray for enormous triangulations , have been referred to merely as far as ...
... feet theodolites and compen- sating bars , the construction of towers and scaffolds 40 and 50 feet in height , the clearance of hill - tops , and miles of visual ray for enormous triangulations , have been referred to merely as far as ...
Page 6
... feet chain is most convenient , more especially for measuring base lines ; it also conduces to the advan- tage of keeping distances as well as heights in feet ; in such work where accurate measurement is necessary , the chain may be ...
... feet chain is most convenient , more especially for measuring base lines ; it also conduces to the advan- tage of keeping distances as well as heights in feet ; in such work where accurate measurement is necessary , the chain may be ...
Page 7
... feet chain , sub- divided into 100 links , is used , as it is more easily handled by two men , and more convenient for cal- culating acreage ; also in Railway Surveys , where miles and furlongs are sometimes obligatory under the Stand ...
... feet chain , sub- divided into 100 links , is used , as it is more easily handled by two men , and more convenient for cal- culating acreage ; also in Railway Surveys , where miles and furlongs are sometimes obligatory under the Stand ...
Page 8
... feet the chain with a weight attached is generally used ; there is however the liability to rust if it is not galvanised . Chains are marked with brass distinctive appendages at every 10 links or 10 feet , most fre- quently giving ...
... feet the chain with a weight attached is generally used ; there is however the liability to rust if it is not galvanised . Chains are marked with brass distinctive appendages at every 10 links or 10 feet , most fre- quently giving ...
Page 9
... feet or links marked on it alternately painted black and white up to 6 feet or 10 links , used for measuring short off- sets , is a useful remnant of this system . The level staff , with its various patterns , will be described in the ...
... feet or links marked on it alternately painted black and white up to 6 feet or 10 links , used for measuring short off- sets , is a useful remnant of this system . The level staff , with its various patterns , will be described in the ...
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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.
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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
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