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 25
Página 11
... centre of the circle being at the vertex , and its radius being 1. The circle , for convenience , is divided into 360 equal parts called degrees ; 90 of these parts are included in a quadrant , which includes one - quarter of the circle ...
... centre of the circle being at the vertex , and its radius being 1. The circle , for convenience , is divided into 360 equal parts called degrees ; 90 of these parts are included in a quadrant , which includes one - quarter of the circle ...
Página 12
... centre of the circle through the other extrem- ity : the sloping line which thus limits the tangent is called the secant of the angle . AT is the tangent and OT the secant of the angle MO A. The versed sine of an angle is that part of ...
... centre of the circle through the other extrem- ity : the sloping line which thus limits the tangent is called the secant of the angle . AT is the tangent and OT the secant of the angle MO A. The versed sine of an angle is that part of ...
Página 24
... centre as regards the field of view . Such eccentricity does not affect the working of the object - piece solely . It may be accuracy of the instrument , which depends upon the position 24 THE LEVEL . The level To bring the intersection ...
... centre as regards the field of view . Such eccentricity does not affect the working of the object - piece solely . It may be accuracy of the instrument , which depends upon the position 24 THE LEVEL . The level To bring the intersection ...
Página 30
... 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 of 1 to 1 , 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 of 1 to 1 , the ...
Página 31
... centre line beforehand , as a separate job , and marking on centre stakes the cuts , fills , and grade points , that is to say , the points where excavation passes into embankment . The rods should be taken carefully at the stakes , and ...
... centre line beforehand , as a separate job , and marking on centre stakes the cuts , fills , and grade points , that is to say , the points where excavation passes into embankment . The rods should be taken carefully at the stakes , and ...
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