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 26
Página x
... turn- ing in the same direction . P. R. C. Point of reverse curvature : the stake - mark where a curve merges in another turning in the opposite direction . B. S. Backsight , in transit work ; or the reading of the rod to ascertain the ...
... turn- ing in the same direction . P. R. C. Point of reverse curvature : the stake - mark where a curve merges in another turning in the opposite direction . B. S. Backsight , in transit work ; or the reading of the rod to ascertain the ...
Página xiii
... 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 vision in tangent 63 66 71 318 XXIII . Turning ...
... 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 vision in tangent 63 66 71 318 XXIII . Turning ...
Página 25
... Turn the tele- scope slightly on its bearings , so that the bubble - case shall project a little on one side or the other . If the bubble slips , correct half its movement by means of the small lateral capstan head screws at one end of ...
... Turn the tele- scope slightly on its bearings , so that the bubble - case shall project a little on one side or the other . If the bubble slips , correct half its movement by means of the small lateral capstan head screws at one end of ...
Página 26
... turning it . Try again the adjustment of the line of collimation before pinning up the wyes . XI . LEVELLING . 1. Suppose O the starting - point ; 1 , 2 , 3 , & c . , the stakes of survey ; and A the initial bench - mark . Wherever ...
... turning it . Try again the adjustment of the line of collimation before pinning up the wyes . XI . LEVELLING . 1. Suppose O the starting - point ; 1 , 2 , 3 , & c . , the stakes of survey ; and A the initial bench - mark . Wherever ...
Página 27
... turn at sta . 2 , drive a pin nearly to the ground at that stake ; sup- pose the rod on it to read 0.81 . The ... turning - points should be read to thousandths , and the reading ing the target fast , it should be swayed slowly checked ...
... turn at sta . 2 , drive a pin nearly to the ground at that stake ; sup- pose the rod on it to read 0.81 . The ... turning - points should be read to thousandths , and the reading ing the target fast , it should be swayed slowly checked ...
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