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 |
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Página 33
... Note the change of ground 11 feet out , and take a rod there , recording the observation . The cutting at that point is 25.5 - 9.5 = 16 feet , corresponding to a distance out for the side stake of 10+ 16 = 26 feet , if the ground were ...
... Note the change of ground 11 feet out , and take a rod there , recording the observation . The cutting at that point is 25.5 - 9.5 = 16 feet , corresponding to a distance out for the side stake of 10+ 16 = 26 feet , if the ground were ...
Página 34
... Note it , and set a stake feet out and 10.0- — 6.5 = 3.5 feet below there marked " grade . " Note also the change of ground 5.5 34 SETTING SLOPE STAKES .
... Note it , and set a stake feet out and 10.0- — 6.5 = 3.5 feet below there marked " grade . " Note also the change of ground 5.5 34 SETTING SLOPE STAKES .
Página 43
... note whether the vernier has been moved right or left ; then observe on the limb the number of full degrees , and the half - degree , if any , which zero of the vernier has passed ; next , look along the vernier from its zero towards ...
... note whether the vernier has been moved right or left ; then observe on the limb the number of full degrees , and the half - degree , if any , which zero of the vernier has passed ; next , look along the vernier from its zero towards ...
Página 68
... note of this , that there may be no mistake in the terminal plus . 6. Next , to determine the proper deflections from the line of tangent at B , bear in mind that the deflection for a whole chain is half the degree of curvature ; and ...
... note of this , that there may be no mistake in the terminal plus . 6. Next , to determine the proper deflections from the line of tangent at B , bear in mind that the deflection for a whole chain is half the degree of curvature ; and ...
Página 71
... notes of various curves assumed at will : drawings are not necessary . XXII . TURNING OBSTACLES TO VISION IN TANGENT . 1. Draw CF parallel to A B. Let lines BC , CE , FG , cut these parallels at equal inclinations . Call this angle I ...
... notes of various curves assumed at will : drawings are not necessary . XXII . TURNING OBSTACLES TO VISION IN TANGENT . 1. Draw CF parallel to A B. Let lines BC , CE , FG , cut these parallels at equal inclinations . Call this angle I ...
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