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 |
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Página 45
... range with the star until the star apparently ceases to move . Mark that range . Multi- ply the natural tangent of the azimuth , given in Table III . , by the distance in feet from the point of observation to the mark in the northern range ...
... range with the star until the star apparently ceases to move . Mark that range . Multi- ply the natural tangent of the azimuth , given in Table III . , by the distance in feet from the point of observation to the mark in the northern range ...
Página 138
... range of the proper gauge side of frog C strikes it . Measure C G. Set off G D , equal to CG , along the side - track line , and drive a pin at D. Stretch the cord from C to D. Mark the middle point of it at K , and drive a pin at N ...
... range of the proper gauge side of frog C strikes it . Measure C G. Set off G D , equal to CG , along the side - track line , and drive a pin at D. Stretch the cord from C to D. Mark the middle point of it at K , and drive a pin at N ...
Página 144
... range with 2 and 3. Find , in column 2 of the table , the deflection distance for a 3 - degree curve , which is seen to be 5 feet 3 inches . Hold one end of the tape at A , A and , stretching 5 feet 3 inches towards 4 , nearly square to ...
... range with 2 and 3. Find , in column 2 of the table , the deflection distance for a 3 - degree curve , which is seen to be 5 feet 3 inches . Hold one end of the tape at A , A and , stretching 5 feet 3 inches towards 4 , nearly square to ...
Contenido
Definitions and principles | 3 |
Definitions | 11 |
ADJUSTMENT AND USE OF INSTRUMENTS | 21 |
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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