The Field Engineer: A Handy Book of Practice in the Survey, Location, and Trackwork of Railroads; Containing ... Rules and Tables ... Applicable to ... the Standard and the Narrow Gauge ...D. van Nostrand, 1880 - 318 páginas |
Dentro del libro
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Página ix
... the marginal figure , it requires that the square root of the third power of the quantity covered shall be taken . B. M. Bench - mark : any fixed reference point for the level , ix as outcropping ledge , water - table of building ,
... the marginal figure , it requires that the square root of the third power of the quantity covered shall be taken . B. M. Bench - mark : any fixed reference point for the level , ix as outcropping ledge , water - table of building ,
Página x
... mark at the beginning of a curve . P. T. Point of tangent : the stake - mark at the end of a curve . P. C. C. Point of compound curvature : the stake - mark where a curve merges in another of different curvature , turn- ing in the same ...
... mark at the beginning of a curve . P. T. Point of tangent : the stake - mark at the end of a curve . P. C. C. Point of compound curvature : the stake - mark where a curve merges in another of different curvature , turn- ing in the same ...
Página xii
... mark backsight and fore- sight points in the same straight line To adjust the needle XV . Miscellaneous . The vernier To read an angle To re - magnetize a needle To replace cross - hairs To fix a true meridian PROPOSITIONS AND PROBLEMS ...
... mark backsight and fore- sight points in the same straight line To adjust the needle XV . Miscellaneous . The vernier To read an angle To re - magnetize a needle To replace cross - hairs To fix a true meridian PROPOSITIONS AND PROBLEMS ...
Página 19
... mark the remaining sides as before . Then say , As the side made radius is to radius , So is the other given side to the name of that side ; Which determines the opposite angle . 5. Applying this method to the right- angled triangle ABC ...
... mark the remaining sides as before . Then say , As the side made radius is to radius , So is the other given side to the name of that side ; Which determines the opposite angle . 5. Applying this method to the right- angled triangle ABC ...
Página 23
... mark its proper place ; draw out the eye - piece until the cross - hairs are exactly in focus ; that is to say , until no movement of the eye shall appear to displace them , and bring the object to be observed clearly into view . 4 ...
... mark its proper place ; draw out the eye - piece until the cross - hairs are exactly in focus ; that is to say , until no movement of the eye shall appear to displace them , and bring the object to be observed clearly into view . 4 ...
Otras ediciones - Ver todas
The Field Engineer: A Handy Book of Practice in the Survey, Location and ... William F. Shunk Sin vista previa disponible - 2008 |
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2017 |
Términos y frases comunes
100 feet long 100-feet chords adjustment apex distance called central angle column Cosine 1 Sine Cotang cross-hair Cube Roots decimals deflection distance degree of curvature DEGREE OF CURVE Diff divided elevation engineer equal Example feet figure fixed foregoing frog angle Full Gauge gauge of track gauge side gent ground index angle instrument intersection angle length of switch-rail located logarithm M.
M. I Sine Main frog dist mantissa mark measure method middle frog middle ordinate middle point minutes Multiply observation outer rail parallel perpendicular quotient radii radius range Reciprocals REVERSED CURVE right triangle screws slope Square Roots standard gauge straight line sub-chord subtended Subtract Suppose Table XVI tabular tance Tang tangent A B tangential angle tangential distance telescope terminal tangent tion toe of switch Trigonometry turnout curve vernier versin vertical ΙΟ ΤΑΝ
Pasajes populares
Página 18 - ... the square of the hypothenuse is equal to the sum of the squares of the other two sides.
Página 4 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 11 - ... is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and fourteen seconds, would be written 10° 18
Página 4 - The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. log» MN = log» M + log