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 6-10 de 46
Página 24
... fixed , and are therefore inaccessible . The adjustment , however , is one not liable to become deranged in either instrument , and , in the transit , is of comparatively small importance . 4. The young practitioner should bear in mind ...
... fixed , and are therefore inaccessible . The adjustment , however , is one not liable to become deranged in either instrument , and , in the transit , is of comparatively small importance . 4. The young practitioner should bear in mind ...
Página 30
... fix the point where any proposed formation slope must meet the surface on level ground , is quite simple ; the distance from the centre line being obviously made up of half the width of road - bed added to the horizontal distance due ...
... fix the point where any proposed formation slope must meet the surface on level ground , is quite simple ; the distance from the centre line being obviously made up of half the width of road - bed added to the horizontal distance due ...
Página 31
... fixed at 15.5 above grade , the next step is a guess how far out from the centre stake the formation slope would proba- bly meet the ground surface . The closeness of the guess will correspond to the experience and natural skill of the ...
... fixed at 15.5 above grade , the next step is a guess how far out from the centre stake the formation slope would proba- bly meet the ground surface . The closeness of the guess will correspond to the experience and natural skill of the ...
Página 33
... fix it ; but , as in the case of the lower slope , practice will speedily lessen the number and abridge the labor of them . = 12. The foregoing section would be noted in the field book as follows : STA . DIS . LEFT . CENTRE RIGHT . AREA ...
... fix it ; but , as in the case of the lower slope , practice will speedily lessen the number and abridge the labor of them . = 12. The foregoing section would be noted in the field book as follows : STA . DIS . LEFT . CENTRE RIGHT . AREA ...
Página 35
... fixed . 20. The field record of the above is as follows : - = = STA . DIS . LEFT . CENTRE RIGHT . AREA . C.YDS . -6.9 0.01 2.5 328 40 18.3 -3.5 5.5 +2.5 +15.0 12.8 XIII . VERTICAL CURVES . DIAGRAM GIVING THE ORDINATES OF. SETTING SLOPE ...
... fixed . 20. The field record of the above is as follows : - = = STA . DIS . LEFT . CENTRE RIGHT . AREA . C.YDS . -6.9 0.01 2.5 328 40 18.3 -3.5 5.5 +2.5 +15.0 12.8 XIII . VERTICAL CURVES . DIAGRAM GIVING THE ORDINATES OF. SETTING SLOPE ...
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