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 27
Página xi
... parallel with the tele- scope axis To adjust the wyes ; or , in other words , to bring the telescope into a position at right angles to the vertical axis of the instrument XI . Levelling . · Correction for the earth's curvature and ...
... parallel with the tele- scope axis To adjust the wyes ; or , in other words , to bring the telescope into a position at right angles to the vertical axis of the instrument XI . Levelling . · Correction for the earth's curvature and ...
Página xiii
... parallel to the terminal tangent of the original curve , and a given distance from it 98 XXXI . To shift a P. C. C. so that the terminal branch of • PAGE XXXII . Having located a tangent , A B a curve shall end in a given tangent 66 99 ...
... parallel to the terminal tangent of the original curve , and a given distance from it 98 XXXI . To shift a P. C. C. so that the terminal branch of • PAGE XXXII . Having located a tangent , A B a curve shall end in a given tangent 66 99 ...
Página xiv
... parallel tangents by a reversed curve having equal radii · XL . To connect two parallel tangents by a reversed curve having unequal radii . XLI . A reversed curve having unequal angles XLII . A reversed curve between fixed points XLIII ...
... parallel tangents by a reversed curve having equal radii · XL . To connect two parallel tangents by a reversed curve having unequal radii . XLI . A reversed curve having unequal angles XLII . A reversed curve between fixed points XLIII ...
Página 25
... PARALLEL WITH THE TELE- SCOPE AXIS . 5. Clamp the instrument over either pair of levelling screws , and bring the bubble to the middle of its tube . Turn the tele- scope slightly on its bearings , so that the bubble - case shall project ...
... PARALLEL WITH THE TELE- SCOPE AXIS . 5. Clamp the instrument over either pair of levelling screws , and bring the bubble to the middle of its tube . Turn the tele- scope slightly on its bearings , so that the bubble - case shall project ...
Página 40
... parallel , should one or the other be sprung , a defect shown by a slight rocking motion when the rims are pinched alternately on op- posite sides , the instrument must be sent to the shop for repair . This is a common disease of ...
... parallel , should one or the other be sprung , a defect shown by a slight rocking motion when the rims are pinched alternately on op- posite sides , the instrument must be sent to the shop for repair . This is a common disease of ...
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