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 11
Página 44
... Stretch across new hairs , in the scores traced for them , of the finest clean spider - line ; secure them with a touch of gum or wax , and put the ring in by a reverse process . 11. TO FIX A TRUE MERIDIAN . By equal shadows of the sun ...
... Stretch across new hairs , in the scores traced for them , of the finest clean spider - line ; secure them with a touch of gum or wax , and put the ring in by a reverse process . 11. TO FIX A TRUE MERIDIAN . By equal shadows of the sun ...
Página 60
... stretch a line from H to A , and make the middle ordinate FOHN ; then from F to A and F to H , making the middle ordinates FO ; and so on . - 7. A good track - layer will seldom require points at shorter intervals than 25 feet . TRACING ...
... stretch a line from H to A , and make the middle ordinate FOHN ; then from F to A and F to H , making the middle ordinates FO ; and so on . - 7. A good track - layer will seldom require points at shorter intervals than 25 feet . TRACING ...
Página 65
... Stretch the 48 feet of chain from B to P , in prolongation of tangent A B , and mark the point P ; then step aside , and stretch from B to C , making the distance P C = 3.14 feet : C will be a stake on the curve . 7. Next , run out the ...
... Stretch the 48 feet of chain from B to P , in prolongation of tangent A B , and mark the point P ; then step aside , and stretch from B to C , making the distance P C = 3.14 feet : C will be a stake on the curve . 7. Next , run out the ...
Página 75
... stretched , and as nearly as can be judged on opposite sides of E. Move to D , foresight to C , deflect 71 ° 48 ' right , and establish a point E at intersection with FG . Cross to E , BS to D , and deflect the angle z = 64 ° 10 ′ into ...
... stretched , and as nearly as can be judged on opposite sides of E. Move to D , foresight to C , deflect 71 ° 48 ' right , and establish a point E at intersection with FG . Cross to E , BS to D , and deflect the angle z = 64 ° 10 ′ into ...
Página 84
... stretched , the rear chainman calls out the number of the stake it is stretched from : this assures the selection of the right number for the stake ahead . 9. ONE AXEMAN will be detailed to make stakes , another to mark and drive them ...
... stretched , the rear chainman calls out the number of the stake it is stretched from : this assures the selection of the right number for the stake ahead . 9. ONE AXEMAN will be detailed to make stakes , another to mark and drive them ...
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