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 xii
... feet chords , to determine the length of the long chord C , the versed sine V , the external secant S , or the tangent T Given C , V , S , or T , of any curve , and D , the degree of curvature , to find the intersection angle I. • Given ...
... feet chords , to determine the length of the long chord C , the versed sine V , the external secant S , or the tangent T Given C , V , S , or T , of any curve , and D , the degree of curvature , to find the intersection angle I. • Given ...
Página xiii
... feet PAGE · 58 • 58 59 60 TRACING CURVES AND TURNING OBSTACLES IN THe Field . XX . To trace a curve on the ground with the chain only • · XXI . To trace a curve on the ground with transit and 100 - feet chain XXII . Turning obstacles to ...
... feet PAGE · 58 • 58 59 60 TRACING CURVES AND TURNING OBSTACLES IN THe Field . XX . To trace a curve on the ground with the chain only • · XXI . To trace a curve on the ground with transit and 100 - feet chain XXII . Turning obstacles to ...
Página xv
... feet VII . Circular arcs to radius of 1 VIII . Feet in decimals of a mile • IX . Inches reduced to decimal parts of a foot X. Radii and their logarithms , middle ordinates , and deflection distances • · XI . Squares , cubes , & c . , of ...
... feet VII . Circular arcs to radius of 1 VIII . Feet in decimals of a mile • IX . Inches reduced to decimal parts of a foot X. Radii and their logarithms , middle ordinates , and deflection distances • · XI . Squares , cubes , & c . , of ...
Página 24
... feet , or as much farther as distinct vision can be had free from heat ripple . Gently rotate the telescope half - way around in the wyes . If the cross - hair selected for treatment then fails to coincide with the object , reduce the ...
... feet , or as much farther as distinct vision can be had free from heat ripple . Gently rotate the telescope half - way around in the wyes . If the cross - hair selected for treatment then fails to coincide with the object , reduce the ...
Página 28
... feet asunder . 7. On ordinary railroad field work such nicety as is implied in most of these rules is not required . To read to the nearest tenth is sufficient , especially where the progress of the party depends in a good degree on the ...
... feet asunder . 7. On ordinary railroad field work such nicety as is implied in most of these rules is not required . To read to the nearest tenth is sufficient , especially where the progress of the party depends in a good degree on the ...
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