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 Company, 1890 - 339 páginas |
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... opposite , on which the eleva- tion is marked with kiel . T. P. Turning - point : usually marked in the field - book . P. I. Point of intersection : as of tangents , which are to be connected by a curve . A. D. Apex distance : i.e. ...
... opposite , on which the eleva- tion is marked with kiel . T. P. Turning - point : usually marked in the field - book . P. I. Point of intersection : as of tangents , which are to be connected by a curve . A. D. Apex distance : i.e. ...
Página 15
... opposite to that leg . And one of the legs is to the other as the radius to the tan- gent of the angle opposite to the latter . 2. In any plane triangle , as one of the sides is to another , so is the sine of the angle opposite to the ...
... opposite to that leg . And one of the legs is to the other as the radius to the tan- gent of the angle opposite to the latter . 2. In any plane triangle , as one of the sides is to another , so is the sine of the angle opposite to the ...
Página 16
... opposite side , So is the sine of either of the other angles to its opposite side . 4. If an angle be required , say , - As one of the given sides is to the sine of its opposite angle , So is the other given side to the sine of its ...
... opposite side , So is the sine of either of the other angles to its opposite side . 4. If an angle be required , say , - As one of the given sides is to the sine of its opposite angle , So is the other given side to the sine of its ...
Página 18
... opposite angles . VIII . RIGHT - ANGLED PLANE TRIANGLES . 1. Right angles may be solved by the rules applicable to all plane triangles ; and it will be found , since a right angle is always one of the data , that the rule usually ...
... opposite angles . VIII . RIGHT - ANGLED PLANE TRIANGLES . 1. Right angles may be solved by the rules applicable to all plane triangles ; and it will be found , since a right angle is always one of the data , that the rule usually ...
Página 19
... opposite angle . 5. Applying this method to the right- angled triangle ABC , and calling the hypothenuse a radius , we shall have , ca sin . CR ; hence sin . C = Rc ÷ a . b = a cos . CR ; hence cos . C = Rb ÷ a . Then , assuming the ...
... opposite angle . 5. Applying this method to the right- angled triangle ABC , and calling the hypothenuse a radius , we shall have , ca sin . CR ; hence sin . C = Rc ÷ a . b = a cos . CR ; hence cos . C = Rb ÷ a . Then , assuming the ...
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Términos y frases comunes
A. D. MIN adjustment apex distance backsight called central angle CHORD column Cosine 1 Sine cross-hair Cube Roots decimal deflection distance degree of curvature degree of curve Diff divided engineer equal error Example feet figure fixed FOOD foregoing formation slope frog angle gauge of track gauge side ground Hence inches index angle instrument height intersection angle located logarithm Main frog dist mantissa mark measure method metres metric curve middle frog middle ordinate middle point minutes multiplied natural sine number corresponding observation opposite outer rail parallel perpendicular plane triangle Polaris quotient radii radius range REVERSED CURVE rule Sine 1 Cotang Square Roots sub-chord subtended Subtract Suppose switch-rail Table XVI tabular tance Tang tangential angle tangential distance telescope terminal tangent tion toe of switch transitman Trigonometry turnout curve vernier vertical ΙΟ