The carpenter's and joiner's hand-book : containing a complete treatise on framing hip and valley roofs ... (1888)
Holly, H. W. (Henry Wells) · New York : John Wiley & Sons · leaf 55
d take more, but a look at Fig. 42settles the question at once. In building afence level from A to i?, we have a certainnumber of pickets as shown. Now supposethe curved lines ^ ^ to represent the rise andfall of a hill, we see, if the pickets from A to B are carried up by the dotted lines,… … b Drive two pins at a a (Fig. 43), as farapart as half the length you want the oval;put the string around the pins, and tie at 5,the same distance from a as from a to a.Place your pencil at J, and move it along,keeping it taut; in the direction of a^ bothways letting the string slide on the pins,…
Carpentry
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