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 Engineer |
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Página 50
If a chord B E connect the langent points , the angles IBE , IEB , are equal : each of them is equal to half of the central angle BCE , or of the intersection angle DIE . 5. Any angle , BCE , at the centre , subtended by the chord BE ...
If a chord B E connect the langent points , the angles IBE , IEB , are equal : each of them is equal to half of the central angle BCE , or of the intersection angle DIE . 5. Any angle , BCE , at the centre , subtended by the chord BE ...
Página 64
First , dividing half the unit chord , or 33 feet , by the radius , 367 feet ( XVIII . , 18 ) , we have 0.09+ for the sine of the tangential angle , corresponding to an angle of 5 ° 10 ' : the deflection angle , therefore , is 10 ° 20 ' ...
First , dividing half the unit chord , or 33 feet , by the radius , 367 feet ( XVIII . , 18 ) , we have 0.09+ for the sine of the tangential angle , corresponding to an angle of 5 ° 10 ' : the deflection angle , therefore , is 10 ° 20 ' ...
Página 65
In words , the tangential distance for a sub - chord is to that for a whole chord as the square of the sub - chord is to the square of the whole chord . The same is true of deflection distances , 6. In the example we are treating ...
In words , the tangential distance for a sub - chord is to that for a whole chord as the square of the sub - chord is to the square of the whole chord . The same is true of deflection distances , 6. In the example we are treating ...
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Contenido
LOGARITHMS | 3 |
PLANE TRIGONOMETRY | 11 |
ADJUSTMENT AND USE OF INSTRUMENTS | 23 |
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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
4º curve added adjustment angle base called central angle centre chord circle cloth column connecting corresponding Cosine Cotang Cubes decimals deflection degree of curvature determine difference direct distance divided Draw elevation engineer equal equivalent error Example feet feet long field figure fixed follows frog gauge given gives grade ground half Hence Illustrated inches length logarithm mark means measure method middle minutes Move multiplied natural necessary Note observation opposite ordinate parallel practice quotient radii radius rail range Roots rule screws side Sine slope Square stake straight stretch Suppose switch-rail Table Table XVI Tang tangent telescope terminal tion track transit triangle turn vernier vertical whole
Información bibliográfica
| Título | 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 Engineer |
| Autor | William Findlay Shunk |
| Edición | 2 |
| Editor | D. Van Nostrand, 1882 |
| Procedencia del original | Universidad de California |
| Digitalizado | 7 Dic. 2007 |
| Largo | 325 páginas |
| Exportar cita | BiBTeX EndNote RefMan |