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 |
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Página 11
... minutes , and each minute into 60 equal parts called seconds . Degrees , minutes , and seconds are de- noted by the symbols ,, : thus the ex- pression 7 ° 22 ′ 33 ′′ is read , 7 degrees , 22 minutes , and 33 sec- onds . 3. The ...
... minutes , and each minute into 60 equal parts called seconds . Degrees , minutes , and seconds are de- noted by the symbols ,, : thus the ex- pression 7 ° 22 ′ 33 ′′ is read , 7 degrees , 22 minutes , and 33 sec- onds . 3. The ...
Página 13
... MINUTES . 2. If the arc is less than 45 ° , look for the degrees at the top of the page , and for the minutes in the left - hand column ; then follow the corresponding horizontal line till you come to the column designated at the top by ...
... MINUTES . 2. If the arc is less than 45 ° , look for the degrees at the top of the page , and for the minutes in the left - hand column ; then follow the corresponding horizontal line till you come to the column designated at the top by ...
Página 14
... minutes from the left or right hand column , as the case may be . If the given logarithm is not found in the table , find the next less logarithm , take from the table the corresponding degrees and minutes , and set them aside ...
... minutes from the left or right hand column , as the case may be . If the given logarithm is not found in the table , find the next less logarithm , take from the table the corresponding degrees and minutes , and set them aside ...
Página 43
... minute short . The vernier , therefore , is scaled to read minutes ; and , if its zero mark be moved slowly half a degree on the limb , its several subdivision marks , one after an- other in arithmetical succession , will be seen to ...
... minute short . The vernier , therefore , is scaled to read minutes ; and , if its zero mark be moved slowly half a degree on the limb , its several subdivision marks , one after an- other in arithmetical succession , will be seen to ...
Página 44
... minute mark on the vernier to the angle already ascertained within half a degree from the limb : the sum will be the angle sought . The vernier in the figure reads 1 ° 20 ' L. 5. In some respects a vernier graduated decimally would be ...
... minute mark on the vernier to the angle already ascertained within half a degree from the limb : the sum will be the angle sought . The vernier in the figure reads 1 ° 20 ' L. 5. In some respects a vernier graduated decimally would be ...
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