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 12
... distance from one extremity of the arc enclosing it , to the diameter , through the other extrem- ity . Thus PM is the sine of the angle MOA . = The cosine of an angle is the sine of the complement of the angle . Thus N M OP is the ...
... distance from one extremity of the arc enclosing it , to the diameter , through the other extrem- ity . Thus PM is the sine of the angle MOA . = The cosine of an angle is the sine of the complement of the angle . Thus N M OP is the ...
Página 28
... distance of several hundred feet ; the leveller is thus enabled to take intermediate elevations rapidly , and , when ... distance . Calling the required correction A , for any given distance D , then A .000215 X D2 if D is in " stations ...
... distance of several hundred feet ; the leveller is thus enabled to take intermediate elevations rapidly , and , when ... distance . Calling the required correction A , for any given distance D , then A .000215 X D2 if D is in " stations ...
Página 29
... 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 163 miles . = - 10. TO FIND DIFFERENCES IN ELEVATION BY MEANS OF THE BAROMETER . Call ...
... 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 163 miles . = - 10. TO FIND DIFFERENCES IN ELEVATION BY MEANS OF THE BAROMETER . Call ...
Página 30
... distance from the centre line being obviously made up of half the width of road - bed added to the horizontal distance due from the slope , to the depth of cut or height of fill . Thus , with 20 feet road - bed , 9 feet cut , and slope ...
... distance from the centre line being obviously made up of half the width of road - bed added to the horizontal distance due from the slope , to the depth of cut or height of fill . Thus , with 20 feet road - bed , 9 feet cut , and slope ...
Página 32
... distance out of 10+ 4.5 14.5 feet . Try , then , a rod 14.5 feet out . 9.0 , corresponding to a cutting of 15.5-9.0 4.5 feet , and a distance out of 16.5 instead of 14.5 feet . Try , next , 16.5 feet out ; the rod there , of 10.0 ...
... distance out of 10+ 4.5 14.5 feet . Try , then , a rod 14.5 feet out . 9.0 , corresponding to a cutting of 15.5-9.0 4.5 feet , and a distance out of 16.5 instead of 14.5 feet . Try , next , 16.5 feet out ; the rod there , of 10.0 ...
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