The American house carpenter: a treatise upon architecture, cornices and mouldings, framing, doors, windows and stairs. Together with the most important principles of practical geometry (1852)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 41
a line to the centre d ; bisect a d at e ; ^ipon e, with the radius, e a, describe the arc, afd;fis the point of contact required. If/ and d were joined, the line would form right angles withthe tangent, b c. (See A/^t. 156.) b … Fig. 44. 85.— Through any three points not in a straight line, todraw a circle. Let a, h and c, [Fig. 44,) be the three givenpoints. Upon a and b, with any radius greater than half a b,describe arcs intersecting at d and e ; upon b and c, with anyradius greater than half b c, describe arcs…
Carpentry · Architecture
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