Elements of Surveying with a Description of the Instruments and the Necessary Tables Including a Table of Natural Sines |
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Page 19
... parallel , when being situated in the same plane , they cannot meet , how far soever , either way , both of them be produced C 13. A plane figure is a plane terminated on all sides by lines , either straight or curved . If the lines are ...
... parallel , when being situated in the same plane , they cannot meet , how far soever , either way , both of them be produced C 13. A plane figure is a plane terminated on all sides by lines , either straight or curved . If the lines are ...
Page 20
... parallel . The rhombus , or lozenge , which has its sides equal , without having its angles right angles . And lastly , the trapezoid , only two of whose sides are parallel . 18. A diagonal is a line which joins the vertices of two ...
... parallel . The rhombus , or lozenge , which has its sides equal , without having its angles right angles . And lastly , the trapezoid , only two of whose sides are parallel . 18. A diagonal is a line which joins the vertices of two ...
Page 21
... parallel to a given line . 13. Magnitudes , which being applied to each other , coin- cide throughout their whole extent , are equal . CHAPTER III . Description of the Instruments used for Delineating or Drawing Lines and Angles on ...
... parallel to a given line . 13. Magnitudes , which being applied to each other , coin- cide throughout their whole extent , are equal . CHAPTER III . Description of the Instruments used for Delineating or Drawing Lines and Angles on ...
Page 23
... parallel to a given line . Let C be the given point , and AB the given line . Place the hypothenuse of the triangle against the edge of the ruler , and then ୯ A B place the ruler and triangle on the paper , so that one of the sides of ...
... parallel to a given line . Let C be the given point , and AB the given line . Place the hypothenuse of the triangle against the edge of the ruler , and then ୯ A B place the ruler and triangle on the paper , so that one of the sides of ...
Page 24
... parallels as in the figure . Produce ba to the left , and lay off the unit of the scale any convenient number of times , and mark the point 1 , 2 , 3 , & c . Then , divide the line ad into ten equal parts , and through the points of ...
... parallels as in the figure . Produce ba to the left , and lay off the unit of the scale any convenient number of times , and mark the point 1 , 2 , 3 , & c . Then , divide the line ad into ten equal parts , and through the points of ...
Common terms and phrases
acres adjusted angle of elevation axis azimuth back-sights base line called centre clamp-screw coincide column comp compass Cosine D Cosine Sine Cotang course curve decimal degrees determined difference of level direction divided double meridian distance draw east elongation error example feet field notes figure given angle given line given point ground Gunter's chain half hence horizontal angle horizontal distance horizontal plane hypothenuse inches instrument intersection latitude and departure length levelling screws line AC line of collimation logarithm M.
M. Sine marked measure method multiplied natural sines needle object paper parallel passing perpendicular piece of land pins plane of reference protractor radius right angles right-angled triangle rods scale of equal secant side similar triangles spider's lines square chains staff subtract surface survey Tang tangent theodolite true meridian vernier plate vertical limb yards