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 15
In any plane triangle , as the cosine of half the difference of the angles at the base is to the cosine of half their sum , so is the sum of the sides about the vertical angle to the third side , or base .
In any plane triangle , as the cosine of half the difference of the angles at the base is to the cosine of half their sum , so is the sum of the sides about the vertical angle to the third side , or base .
Página 17
Then , by proposition 3 , - As the sum of the given sides is to their difference , So is the langent of half the sum of the remaining angles to the tangent of half their difference . Half the sum of the remaining angles added to half ...
Then , by proposition 3 , - As the sum of the given sides is to their difference , So is the langent of half the sum of the remaining angles to the tangent of half their difference . Half the sum of the remaining angles added to half ...
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 ' ...
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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 |