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 31
Página v
... methods which they must needs become familiar with from the beginning . Plane Trigonometry , Logarithms , and propositions relating to the circle , are tools of the craft in constant use ; ready han- dling of them is an indispensable ...
... methods which they must needs become familiar with from the beginning . Plane Trigonometry , Logarithms , and propositions relating to the circle , are tools of the craft in constant use ; ready han- dling of them is an indispensable ...
Página 5
... method last given . Then take from column D the correspond- ing tabular difference , multiply this by the decimal part , and add the product to the mantissa just found . The principle employed is that the differences of numbers are ...
... method last given . Then take from column D the correspond- ing tabular difference , multiply this by the decimal part , and add the product to the mantissa just found . The principle employed is that the differences of numbers are ...
Página 18
... methods applica- ble to right - angled triangles . Second Method . 7. Find any one of the angles by means of proposition 6 , and the remaining angles either by a repetition of the same rule , or by the relation of sides to the sines of ...
... methods applica- ble to right - angled triangles . Second Method . 7. Find any one of the angles by means of proposition 6 , and the remaining angles either by a repetition of the same rule , or by the relation of sides to the sines of ...
Página 19
... method to the right- angled triangle ABC , and calling the hypothenuse a radius , we shall have , ca sin . C ÷ R ; hence sin . C = Rc ÷ a . b = a cos . C ÷ R ; hence cos . C = Rb ÷ a . Then , assuming the side b to be radius , we shall ...
... method to the right- angled triangle ABC , and calling the hypothenuse a radius , we shall have , ca sin . C ÷ R ; hence sin . C = Rc ÷ a . b = a cos . C ÷ R ; hence cos . C = Rb ÷ a . Then , assuming the side b to be radius , we shall ...
Página 31
... method 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 ...
... method 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 ...
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