The Field Engineer: A Handy Book of Practice in the Survey, Location, and Track-work of Railroads : Containing a Large Collection of Rules and Tables, Original and Selected, Applicable to Both the Standard and the Narrow Gauge, and Prepared with Special Reference to the Wants of the Young EngineerVan Nostrand, 1882 - 6 páginas |
Dentro del libro
Resultados 1-3 de 22
Página 29
... observation above or place of observation . LEVELLING . 29 To find differences in elevation by means of barometer Heights by the thermometer.
... observation above or place of observation . LEVELLING . 29 To find differences in elevation by means of barometer Heights by the thermometer.
Página 32
... observe after a little practice , since the ground ascends thence toward the centre line , that the side stake must ... observation , will place a slope stake on the second divining this true position , and , becoming meanwhile quick in ...
... observe after a little practice , since the ground ascends thence toward the centre line , that the side stake must ... observation , will place a slope stake on the second divining this true position , and , becoming meanwhile quick in ...
Página 45
... observation of the North Star in meridian . Find the time of passage in Table I. Choosing still weather , hang a plumb - bob from some high place into a bucket of water , and establish a point of observation so far southward that the ...
... observation of the North Star in meridian . Find the time of passage in Table I. Choosing still weather , hang a plumb - bob from some high place into a bucket of water , and establish a point of observation so far southward that the ...
Contenido
Definitions and principles | 3 |
Definitions | 11 |
ADJUSTMENT AND USE OF INSTRUMENTS | 21 |
Otras 13 secciones no mostradas
Otras ediciones - Ver todas
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2015 |
The Field Engineer, a Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2016 |
Términos y frases comunes
100 feet long 100-feet chords called central angle chord 100 feet column cross-hair Cube Roots decimals deflection angle deflection distance degree of curvature degree of curve Diff divided elevation engineer equal Example feet 8 inches figure find the radius fixed foregoing frog angle Full Gauge gauge of track gauge side grade ground Hypsometry index angle instrument intersection angle length of switch-rail located logarithm magnetic bear Main frog dist main track mantissa mark measure method middle frog middle ordinate middle point minutes Multiply outer rail parallel perpendicular quotient radii radius REVERSED CURVE screws Sine 1 Cotang Square Roots stake standard gauge 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 ΙΟ ΤΑΝ