THE PLANE-TABLE AND ITS USE IN TOPOGRAPHICAL SURVEYING1869 |
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Página 3
... practical manual of its use . This paper may seem , in some cases , somewhat amplified , but those more familiar with the instrument will overlook details intended for the benefit of beginners . The invention of the plane - table is ...
... practical manual of its use . This paper may seem , in some cases , somewhat amplified , but those more familiar with the instrument will overlook details intended for the benefit of beginners . The invention of the plane - table is ...
Página 12
... practical purposes , the foregoing adjustment and the succeeding one are , of course , unnecessary , as the instrument is to be considered as in constant adjustment in these respects . 5. To make the Line of Collimation Parallel to the ...
... practical purposes , the foregoing adjustment and the succeeding one are , of course , unnecessary , as the instrument is to be considered as in constant adjustment in these respects . 5. To make the Line of Collimation Parallel to the ...
Página 39
... practical value . The table not being properly oriented , and having re- sected upon a b and c , we have the triangle of error e e ' e " . Now , by the Lehmann method , judge of the position of d ( the point sought ) . Set the alidade ...
... practical value . The table not being properly oriented , and having re- sected upon a b and c , we have the triangle of error e e ' e " . Now , by the Lehmann method , judge of the position of d ( the point sought ) . Set the alidade ...
Página 58
... practical hand . It is a dangerous precedent to give latitude in this respect to a beginner . When there is an abrupt rise , as in low bluffs , railroad . embankments , etc. , not above ten feet in height , on a scale of Too , it should ...
... practical hand . It is a dangerous precedent to give latitude in this respect to a beginner . When there is an abrupt rise , as in low bluffs , railroad . embankments , etc. , not above ten feet in height , on a scale of Too , it should ...
Página 72
... practical surveyor it is unnecessary to give any rules for his guidance , as his knowledge of the plane - table and of the requirements of the special work which he is called upon to perform will enable him to execute it promptly and ...
... practical surveyor it is unnecessary to give any rules for his guidance , as his knowledge of the plane - table and of the requirements of the special work which he is called upon to perform will enable him to execute it promptly and ...
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Términos y frases comunes
25 cents 50 cents accuracy adjustment alidade axis brass BRIDGES centre chain circle clamp Cloth Coast Survey construction contours correct cross-hairs curves declinatoire depression determined diagram direction distance Edition Engineers engravings Feet fiducial edge field forward line forward signal GEOLOGY OF PENNSYLVANIA Graphical Statics ground HAND-BOOK height hills horizontal Hypsometry instrument intersection line of sight lines drawn lithographic plates marked means measured meridian metal method metres middle point minutes of arc Morocco necessary objects observed Paper covers parallel pencils perpendicular placed plane plane-table plotted points point occupied point sought falls PRACTICAL TREATISE Prof projection QUALITATIVE CHEMICAL ANALYSIS resection right angles rule scale sheet shore line side sketching Slide Valve slope station Steam Steel straight edge surveyor taken tangent screw telemeter telescope tion topographer triangle of error triangulation points true point U. S. Navy vertical arc wood-cuts Yale College ZERAH COLburn
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