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 56
... equivalent to 20.67 degrees . Dividing by 3 , we have 6.89 chord lengths for the length of the curve . If the chords , as is usual , are each 100 feet long , the length of the curve in this case will be 689 feet . If the chord lengths ...
... equivalent to 20.67 degrees . Dividing by 3 , we have 6.89 chord lengths for the length of the curve . If the chords , as is usual , are each 100 feet long , the length of the curve in this case will be 689 feet . If the chord lengths ...
Página 68
... equivalent to 4005 ' , and the degree of curvature 7 ° 30 ' is equivalent to 450 ' : dividing the former by the latter , we have 890 feet for the length of the curve , as before . 5. Adding 8.90 to 2.50 , the number of the P. C. , the ...
... equivalent to 4005 ' , and the degree of curvature 7 ° 30 ' is equivalent to 450 ' : dividing the former by the latter , we have 890 feet for the length of the curve , as before . 5. Adding 8.90 to 2.50 , the number of the P. C. , the ...
Página 109
... equivalent to a distance from B of 125 feet around the 4 ° curve to the P. C. C. at E ; and GIH- EG B. = 9 ° 49 ' 5 ° 01 ' = 4 ° 48 ' = angle CHF , equivalent to a distance from C of 80 feet around the 6 ° curve to the P. C. C. at F ...
... equivalent to a distance from B of 125 feet around the 4 ° curve to the P. C. C. at E ; and GIH- EG B. = 9 ° 49 ' 5 ° 01 ' = 4 ° 48 ' = angle CHF , equivalent to a distance from C of 80 feet around the 6 ° curve to the P. C. C. at F ...
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