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A treatise on ropemaking, as practised in private and public ropeyards (1869)

Chapman, Robert, ropemaker · Philadelphia, H.C. Baird · leaf 40

An illustration from A treatise on ropemaking, as practised in private and public ropeyards, 1869, leaf 40
38 TREATISE ON ROPEMAKING. Aa Cosine > .. 6^56' 9-99681 : D = C8 ., 10-6 102530 : : E = 10-5 = 11 yams 9tli circle .. •02011 Tben D = C^ : 745, circumference of the 10th circle, the remaining vacancy. Therefore, 7-45- X "07958, the area of unity, gives 5"653, and completes a strand of 292 threads… … 292 Base, 180 fatlioms.

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