. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . ble type of hoisting rope is composed of8 strands, 19 wires to the strand. This construction con-tains 2 more strands than the standard hoisting ropewhich adds greatly to the flexibility of the rope and per-mits its use on sheaves and drums of comparatively smalldiameter. A special flexible hoisting rope composed of 6 strands,37 wires to the strand, is used extensively on cranes andsimilar machinery where the rope is operated
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . ble type of hoisting rope is composed of8 strands, 19 wires to the strand. This construction con-tains 2 more strands than the standard hoisting ropewhich adds greatly to the flexibility of the rope and per-mits its use on sheaves and drums of comparatively smalldiameter. A special flexible hoisting rope composed of 6 strands,37 wires to the strand, is used extensively on cranes andsimilar machinery where the rope is operated at highspeed and where the sheaves and drums are of small diam-eter. The wires used in this construction are smaller thanthose in the standard hoisting rope and therefore will notstand as much abrasive wear, but, as more than SO percent of the wires—and consequently of the strength—arein the inner layers of the strand they are protected fromabrasion. A still more flexible type of construction is used inropes of large diameter—2 in. or more. This constructionconsists of 6 strands having 61 wires to the strand and 6 Strands—37 Wires per Strand—1 Hemp Core. Steel Clad Special Flexible Hoisting Rope usually having a hemp core. This large number of wiresin the strand permits the use of a finer wire and conse-quently gives a greater flexibility than would be possiblein a rope of large diameter if made in the 6 x 19 or 6 x 37construction. This rope is used in very heavy land ser-vice, or for deep sea dredging and salvage work. In thelatter case a wire center is generally used. Steel Clad Rope Steel clad hoisting rope is used chiefly on dredges, powershovels and dragline excavators, or for other severe construction of this rope is similar to the regular6-strand rope except that each strand is wound with aflat strip of steel. This steel covering gives additional wearing service without reducing the flexibility of the ropebut does not increase the tensile strength.
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
