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
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Página 32
... feet above grade This gives him a point in the air , 10+ 15.5 = 25.5 feet out from the centre stake , level with the instrument , as the limit of the imaginary section ; and from that point he can pretty well judge where a line ...
... feet above grade This gives him a point in the air , 10+ 15.5 = 25.5 feet out from the centre stake , level with the instrument , as the limit of the imaginary section ; and from that point he can pretty well judge where a line ...
Página 34
... feet out . Of this distance , 7 feet are due to half the road - bed , and 23 feet to horizontal reach of the embankment slope . The slope being 1 to 1 , or , the hori- zontal reach of 23 feet corresponds to a vertical height of of 23 = 15.3 ...
... feet out . Of this distance , 7 feet are due to half the road - bed , and 23 feet to horizontal reach of the embankment slope . The slope being 1 to 1 , or , the hori- zontal reach of 23 feet corresponds to a vertical height of of 23 = 15.3 ...
Página 60
... FEET CHORD . Middle Feet . Feet . Feet . 50 45 40 Feet . Feet . Feet . 35 30 25 Feet Feet . Feet . Feet . 20 15 10 5 LENGTHS OF THE ORDINATES IN FEET . .218 .216 .209 .198 .183 .164 .140 .111 .078 .041 Example . What is the ordinate of ...
... FEET CHORD . Middle Feet . Feet . Feet . 50 45 40 Feet . Feet . Feet . 35 30 25 Feet Feet . Feet . Feet . 20 15 10 5 LENGTHS OF THE ORDINATES IN FEET . .218 .216 .209 .198 .183 .164 .140 .111 .078 .041 Example . What is the ordinate of ...
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 - 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