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 EngineerD. Van Nostrand, 1882 - 6 páginas |
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Página 50
... equal . Thus , IB = IE . 3. The angle DIE , at the intersection of tangents , is equal to the central angle BCE , included between radii to the tan- gent points . 4. If a chord BE connect the tangent points , the angles IBE , IEB , are ...
... equal . Thus , IB = IE . 3. The angle DIE , at the intersection of tangents , is equal to the central angle BCE , included between radii to the tan- gent points . 4. If a chord BE connect the tangent points , the angles IBE , IEB , are ...
Página 64
... equal to half the chord which limits the angle on one side divided by radius . The limiting chord BC in this instance is equal to 66 - 48 feet ; half of 48 , therefore , or 24 feet , divided by radius , 367 feet , gives 0.0654 , the ...
... equal to half the chord which limits the angle on one side divided by radius . The limiting chord BC in this instance is equal to 66 - 48 feet ; half of 48 , therefore , or 24 feet , divided by radius , 367 feet , gives 0.0654 , the ...
Página 320
... equal 119 angles unequal , tangent points fixed , radii equal 120 divergent tangents , radii equal , advancing towards intersection • 123 receding from intersection 124 • to shift a P. R. C. in order to strike a fixed tangent 125 Curves ...
... equal 119 angles unequal , tangent points fixed , radii equal 120 divergent tangents , radii equal , advancing towards intersection • 123 receding from intersection 124 • to shift a P. R. C. in order to strike a fixed tangent 125 Curves ...
Contenido
Definitions and principles | 3 |
Definitions | 11 |
ADJUSTMENT AND USE OF INSTRUMENTS | 21 |
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The Field Engineer, a Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2017 |
The Field Engineer: A Handy Book of Practice in the Survey, Location, and ... William Findlay Shunk Sin vista previa disponible - 2018 |
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