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
Resultados 1-5 de 26
Página x
... tion is marked with kiel . T. P. Turning - point : usually marked in the field - book . P. I. Point of intersection : as of tangents , which are to be connected by a curve . A. D. Apex distance : i.e. , the distance from the P. I. to ...
... tion is marked with kiel . T. P. Turning - point : usually marked in the field - book . P. I. Point of intersection : as of tangents , which are to be connected by a curve . A. D. Apex distance : i.e. , the distance from the P. I. to ...
Página xi
... . · Correction for the earth's curvature and refrac- tion · · To find differences in elevation by means of the barometer Heights by the thermometer 25 25 285 26 28 8835 29 29 xi XII . Setting slope stakes XIII . Vertical curves XIV.
... . · Correction for the earth's curvature and refrac- tion · · To find differences in elevation by means of the barometer Heights by the thermometer 25 25 285 26 28 8835 29 29 xi XII . Setting slope stakes XIII . Vertical curves XIV.
Página 11
... tion of the triangle . 2. A plane angle is measured by the arc of a circle included between its sides ; the centre of the circle being at the vertex , and its radius being 1. The circle , for convenience , is divided into 360 equal ...
... tion of the triangle . 2. A plane angle is measured by the arc of a circle included between its sides ; the centre of the circle being at the vertex , and its radius being 1. The circle , for convenience , is divided into 360 equal ...
Página 28
... TION . The correction for a 100 - feet " station " is .000215 ; for one mile , 0.6 . It is to be added to the calculated elevation of the point observed , or to be deducted from the " rod " before calculating the elevation , in the case ...
... TION . The correction for a 100 - feet " station " is .000215 ; for one mile , 0.6 . It is to be added to the calculated elevation of the point observed , or to be deducted from the " rod " before calculating the elevation , in the case ...
Página 29
... tion we have D = √ A ÷ 0.6 . In this form it is applicable to the determination of distances at sea . The Peak of Teneriffe , for example , 16,000 feet high , should be just visible from the sea - level at a distance . V160000.6 say ...
... tion we have D = √ A ÷ 0.6 . In this form it is applicable to the determination of distances at sea . The Peak of Teneriffe , for example , 16,000 feet high , should be just visible from the sea - level at a distance . V160000.6 say ...
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