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. Handbook of construction plant, its cost and efficiency. 6 .11% A 11/4 .31 .11 % iy8 .25 .92 PLOW STEEL $ 1% 51/2 1% 5 .93 11/2 4% .79 1% 4i/4 .65 1% 4 .54 -1/8 31/2 .43 3 .34 % 2% .26 % 21/4 .19 % 2 .70 . .16 1% 1% .57 .14 1/2 I1/2 .42 .13 I lVi .31 .121/2 li/s .25 FLAT WIRE ROPE. Flat wire rope is c
. Handbook of construction plant, its cost and efficiency. 6 .11% A 11/4 .31 .11 % iy8 .25 .92 PLOW STEEL $ 1% 51/2 1% 5 .93 11/2 4% .79 1% 4i/4 .65 1% 4 .54 -1/8 31/2 .43 3 .34 % 2% .26 % 21/4 .19 % 2 .70 . .16 1% 1% .57 .14 1/2 I1/2 .42 .13 I lVi .31 .121/2 li/s .25 FLAT WIRE ROPE. Flat wire rope is composed of a number of wire ropes calledflat rope strands of alternate right and left lay, usually ofcrucible steel placed sideby side and sewed to-gether with soft Swedishiron or steel wire. Thissewing wire, being softerthan the steel strands,acts as a cushion andwears out much fasterthan the strands them-selves. The rope, how-ever, is very easily re-paired. As a large reel isnot necessary for wind-ing it, it is used princi-pally where space is Fig 257. Flat Wire Rope Made ofCrucible Cast comes in widths of V2-m. variation. 561 % INCH THICKApproximate Width and Thickness in Inches Weight per Footin Pounds Breaking Stress* in Tons of 2,000 Pounds ProperWorking Lioad in Tons of2,000 Pounds Approx. Price per Pound y2x7 %x6 %x5% y2x5 %x4% . 89 77726460 13 11 $ y2 •12%.12% • 12% • 12% %x4 %x3%y2x3 k 504536 • 13% .13%•13% % INCH THICK %x5y2 %x5 %x4y2 %x4%x3% 5550474338 8 7 6 .13% .13%.13%• 13%•13% %x3 %x2y2 %x2 . 30 2818 4 .13% .13%•13% Unless order distinctly specifies to the contrary, the rule forthickness applies to size of strand before sewing. Wire rope is as flexible as new manila or hemp rope of thesame strength, and when used as hauling, hoisting or standingrope is generally more durable. The working load for hoistingand haulage
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbuilding, bookyear191