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 24
... necessary , repeat the operation . Proceed in the same man- ner with the other cross - hair . If the error is large , bring both nearly right before undertaking their final adjustment . 2. Having thus adjusted the line of collimation ...
... necessary , repeat the operation . Proceed in the same man- ner with the other cross - hair . If the error is large , bring both nearly right before undertaking their final adjustment . 2. Having thus adjusted the line of collimation ...
Página 71
... necessary . XXII . TURNING OBSTACLES TO VISION IN TANGENT . 1. Draw CF parallel to A B. Let lines BC , CE , FG , cut these parallels at equal inclinations . Call this angle I. Then BC : = CE = FG . BE = A B F E BD DE = 2 BD . But BD BC ...
... necessary . XXII . TURNING OBSTACLES TO VISION IN TANGENT . 1. Draw CF parallel to A B. Let lines BC , CE , FG , cut these parallels at equal inclinations . Call this angle I. Then BC : = CE = FG . BE = A B F E BD DE = 2 BD . But BD BC ...
Página 79
... necessary distribution of labor attending a great charge should relieve him from its direct performance . ― 2. A FIELD - CORPS in settled regions generally consists of one senior assistant or chief of corps , one transitman , one ...
... necessary distribution of labor attending a great charge should relieve him from its direct performance . ― 2. A FIELD - CORPS in settled regions generally consists of one senior assistant or chief of corps , one transitman , one ...
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