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Handbook of construction plant, its cost and efficiency (1918)
Dana, Richard Turner, 1876-1928 · New York, McGraw-Hill book company, inc., [etc., etc.] · leaf 563
4 33 6.6 1.24 36 7.2 1.38 6 % .35 25 5.0 .92 ) 27 5.4 1.00 5% % .25 17 Va 3.5 .64 19 3.8 .72 4y, V2 .16^ 11 2.2 .40 11.9 2.38 .45 3% ROPENOZr-SFINNINa HOISTZNO BOFE. 559 Standard strengths adopted May 1, 1910. Eighteen strands, seven wires each, one hemp core. Non-Spinning Rope is necessary in… … Fig. 256. ered with an outer layer of twelve strands of seven wires each,regular lay. It is made in Swedes iron, crucible cast steel, extrastrong crucible cast steel, and plow steel. With a rope of thistype the Vermont Marble Co., of West Rutland, Vt., hoisted alarge block of marble, hanging free,…Contractors' operations · Building
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