Modern carpentry and joinery : being a compilation of the very best things and most modern and practical methods known in the arts of carpentry and joinery (1910)
Hodgson, Frederick Thomas, 1836- · Chicago : F. J. Drake & Co. · leaf 130
he divisions 1 2 in the circumfer-ence, and produce the line indefinitely, making e kequal to e 2, and k g equal to 12; 1 2e k g will be theaxis major of the ellipses of the covering 12 7 8. Joinalso the corresponding divisions in the circumferenceof the section on the minor axis, and produce the… … Fig. 91. 128 MODERN CARPENTRY To find the covering of an annular vault. Let ACKGEFA (Fig. 92) be the generating sec-tion of the vault. On A C describe a semi-circle ABC,and divide its circumference into equal parts, repre-senting the boards of the covering. From the divisionsof the semi-circle, b,…
Carpentry
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