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 90
Página xi
... angles to the vertical axis of the instrument XI . Levelling . · 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 ...
... angles to the vertical axis of the instrument XI . Levelling . · 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 ...
Página xii
... angle To re - magnetize a needle To replace cross - hairs To fix a true meridian PROPOSITIONS AND PROBLEMS RELATING ... angle I and radius R , to find the tangent T Given the intersection angle I and tangent T , to find the radius R ...
... angle To re - magnetize a needle To replace cross - hairs To fix a true meridian PROPOSITIONS AND PROBLEMS RELATING ... angle I and radius R , to find the tangent T Given the intersection angle I and tangent T , to find the radius R ...
Página xiii
... angle , x , may merge in said straight line Table showing the distance , d , in feet , at which curves of contrary flexure must be placed asunder , in order that the connecting tangent , T , may be 300 feet long PROBLEMS IN FIELD ...
... angle , x , may merge in said straight line Table showing the distance , d , in feet , at which curves of contrary flexure must be placed asunder , in order that the connecting tangent , T , may be 300 feet long PROBLEMS IN FIELD ...
Página xiv
... angle of intersection being given To find the angle of switch - rail with main track . 130 To find the distance from toe of switch to point of main frog . · 130 To find the radius of outer rail of turnout curve , 131 To find the main ...
... angle of intersection being given To find the angle of switch - rail with main track . 130 To find the distance from toe of switch to point of main frog . · 130 To find the radius of outer rail of turnout curve , 131 To find the main ...
Página 11
... angles . When three of these parts are given , one being a side , the remaining parts may be found by computation . The operation of finding the unknown parts is called the solu- tion of the triangle . 2. A plane angle is measured by ...
... angles . When three of these parts are given , one being a side , the remaining parts may be found by computation . The operation of finding the unknown parts is called the solu- tion of the triangle . 2. A plane angle is measured by ...
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