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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Página 10
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. PLANE TRIGONOMETRY . III . DEFINITIONS ... sides and three angles . When three of these parts are given , one being a side , the remaining parts may be found ...
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. PLANE TRIGONOMETRY . III . DEFINITIONS ... sides and three angles . When three of these parts are given , one being a side , the remaining parts may be found ...
Página 15
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. VI . GENERAL PROPOSITIONS . 1. In any ... side , or base . Also , as the sine of half the difference of the angles at the base is to the sine of half their sum , ...
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. VI . GENERAL PROPOSITIONS . 1. In any ... side , or base . Also , as the sine of half the difference of the angles at the base is to the sine of half their sum , ...
Página 16
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. VII . SOLUTION OF PLANE TRIANGLES . 1 ... side and an angle are two of the given parts , the solution may be effected by proposition 2 of the preceding section .
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. VII . SOLUTION OF PLANE TRIANGLES . 1 ... side and an angle are two of the given parts , the solution may be effected by proposition 2 of the preceding section .
Página 17
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. Example 2 . Given , sides a and b , as above , and angle A ; to find angle B. As side a Is to sin . A So is side b • · • To sin . B = 36 ° 43 ′ · • · ( a . c ...
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. Example 2 . Given , sides a and b , as above , and angle A ; to find angle B. As side a Is to sin . A So is side b • · • To sin . B = 36 ° 43 ′ · • · ( a . c ...
Página 18
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. CASE III . 6. When the three sides of a plane triangle are given , to find the angles . First Method . Assume the longest of the three sides as base ; then ...
... Gauge, and Prepared with Special Reference to the Wants William Findlay Shunk. CASE III . 6. When the three sides of a plane triangle are given , to find the angles . First Method . Assume the longest of the three sides as base ; then ...
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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