Aid to Survey Practice for Reference in Surveying, Levelling, and Setting OutC. Lockwood and Company, 1880 - 382 pages |
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Page xiii
... micrometers Reflecting Telemeters Adie's 36 - inch instrument 3. Instruments for angular measurement . Instruments of the theodolite type Instrument corrections for the theodolite , horizontal limb 99 19 vertical limb " 9 Repeating and ...
... micrometers Reflecting Telemeters Adie's 36 - inch instrument 3. Instruments for angular measurement . Instruments of the theodolite type Instrument corrections for the theodolite , horizontal limb 99 19 vertical limb " 9 Repeating and ...
Page 6
... micrometers , on staves of known length whether graduated or otherwise . 7. Reflecting telemeters for observation to any fixed points , dependent on the length of the instrument as a base of triangulation . 1. The steel chain is the ...
... micrometers , on staves of known length whether graduated or otherwise . 7. Reflecting telemeters for observation to any fixed points , dependent on the length of the instrument as a base of triangulation . 1. The steel chain is the ...
Page 18
... with the help of a micrometer is the measure of the required distance . Thus if S the height observed on the staff , 18 CHAP . I. INSTRUMENTS AND CALCULATIONS Telemetrical observation on staves of known length Eckhold's telemetry.
... with the help of a micrometer is the measure of the required distance . Thus if S the height observed on the staff , 18 CHAP . I. INSTRUMENTS AND CALCULATIONS Telemetrical observation on staves of known length Eckhold's telemetry.
Page 19
... micrometer disc . The mode of operating with this instrument is thus described by Mr. Eckhold in an article in Spon's ' Dictionary of Engineering . ' 1. Place the staff vertically at one end of the dis- tance to be measured , and the ...
... micrometer disc . The mode of operating with this instrument is thus described by Mr. Eckhold in an article in Spon's ' Dictionary of Engineering . ' 1. Place the staff vertically at one end of the dis- tance to be measured , and the ...
Page 20
... micrometer disc is then turned either way until the next division of the scale is brought exactly between the cross lines that indicate the centre of the microscope , when the vernier of the micrometer may give an additional reading of ...
... micrometer disc is then turned either way until the next division of the scale is brought exactly between the cross lines that indicate the centre of the microscope , when the vernier of the micrometer may give an additional reading of ...
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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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