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 15
... Gauge ... William Findlay Shunk. VI . GENERAL PROPOSITIONS . 1. In any right - angled triangle the hypothenuse is to one of the legs as the radius to the sine of the angle opposite to that leg . And one of the legs is to the other as the ...
... Gauge ... William Findlay Shunk. VI . GENERAL PROPOSITIONS . 1. In any right - angled triangle the hypothenuse is to one of the legs as the radius to the sine of the angle opposite to that leg . And one of the legs is to the other as the ...
Página 17
... Gauge ... William Findlay Shunk. Example 2 . Given , sides a and b , as above , and angle A ; to find angle B. As side a Is to sin . A So is side b • • To sin . B = 36 ° 43 ′ ( a . c . ) log . 8.021364 log . 9.616616 log . 2.138618 log ...
... Gauge ... William Findlay Shunk. Example 2 . Given , sides a and b , as above , and angle A ; to find angle B. As side a Is to sin . A So is side b • • To sin . B = 36 ° 43 ′ ( a . c . ) log . 8.021364 log . 9.616616 log . 2.138618 log ...
Página 29
... Gauge ... William Findlay Shunk .0215 ; for 50 stations , 0.5375 ; for 10 miles , 60 feet , and a spire or treetop apparently level with the instrument at that dis- tance would really be 60 feet above it . Transposing the equa- tion we ...
... Gauge ... William Findlay Shunk .0215 ; for 50 stations , 0.5375 ; for 10 miles , 60 feet , and a spire or treetop apparently level with the instrument at that dis- tance would really be 60 feet above it . Transposing the equa- tion we ...
Página 31
... Gauge ... William Findlay Shunk. Example No. 1 . 5. Let the accompanying figure represent the cross - section at any given point of a proposed excavation ; road - bed 20 feet wide , cutting at centre stake 12 feet , and formation slopes ...
... Gauge ... William Findlay Shunk. Example No. 1 . 5. Let the accompanying figure represent the cross - section at any given point of a proposed excavation ; road - bed 20 feet wide , cutting at centre stake 12 feet , and formation slopes ...
Página 32
... Gauge ... William Findlay Shunk. 8. It is true , that , on a uniform declivity , he might aid con- jecture by taking a rod distant half the width of road - bed , or 10 feet , from the centre stake , ascertain thus the slope of the ground ...
... Gauge ... William Findlay Shunk. 8. It is true , that , on a uniform declivity , he might aid con- jecture by taking a rod distant half the width of road - bed , or 10 feet , from the centre stake , ascertain thus the slope of the ground ...
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