 | Francis Campin - 1888 - 582 pages
...advisable simply to give a rule for inserting a curve at any of the angles of intersection. Suppose it is required to find the point A or D at which to commence a curve of a given radius. EULE. — Subtract half the angle A .BD THE RAILWAY BUILDER. from 90°, the remainder... | |
 | 1851 - 498 pages
...sub-chord5 to be divided into the same number of parts* ARTICLE VI. Having_given the angle abd,fig. 7, it is required to find the point a or d, at which to commence a curve of given radiuf. Rule. — Subtract half the angle abd, from 90°; the remainder will be the angle bca, or ic... | |
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... must be put in at every angle, or often the whole direction of the line changed. Without stopping to explain the compound curve, reversed curve, or any of the intricacies of location, it is thought advisable simply to give a rule for inserting a curve... 