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 xiv
... radii · XL . To connect two parallel tangents by a reversed curve having unequal radii . XLI . A reversed curve having unequal angles XLII . A reversed curve between fixed points XLIII . To connect two divergent tangents by a reversed ...
... radii · XL . To connect two parallel tangents by a reversed curve having unequal radii . XLI . A reversed curve having unequal angles XLII . A reversed curve between fixed points XLIII . To connect two divergent tangents by a reversed ...
Página xv
... Radii and their logarithms , middle ordinates , and deflection distances • · XI . Squares , cubes , & c . , of numbers from 1 to 1042 . XII . Logarithms of numbers , 1 to 1000 . • XIII . Logarithmic sines , cosines , tangents , and ...
... Radii and their logarithms , middle ordinates , and deflection distances • · XI . Squares , cubes , & c . , of numbers from 1 to 1042 . XII . Logarithms of numbers , 1 to 1000 . • XIII . Logarithmic sines , cosines , tangents , and ...
Página 50
... radii to the tan- gent points . 4. If a chord BE connect the tangent points , the angles IBE , IEB , are equal : each of them is equal to half of the central angle BCE , or of the intersection angle DIE . 5. Any angle , BCE , at the ...
... radii to the tan- gent points . 4. If a chord BE connect the tangent points , the angles IBE , IEB , are equal : each of them is equal to half of the central angle BCE , or of the intersection angle DIE . 5. Any angle , BCE , at the ...
Página 51
... radii : hence , in any circular arc struck with half that radius , or 2,865 feet , one hundred feet at the circumference would sub- tend an angle of two degrees at the centre . Such an arc is called a two - degree curve . If one - third ...
... radii : hence , in any circular arc struck with half that radius , or 2,865 feet , one hundred feet at the circumference would sub- tend an angle of two degrees at the centre . Such an arc is called a two - degree curve . If one - third ...
Página 55
... the curve . If the degree of curvature is a whole number , the more con- minutes , if any , in I to decimals of vcnient method of effecting the division is , first , to reduce the RADII , DEflection ANGLES , ETC. 35 55.
... the curve . If the degree of curvature is a whole number , the more con- minutes , if any , in I to decimals of vcnient method of effecting the division is , first , to reduce the RADII , DEflection ANGLES , ETC. 35 55.
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