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GLOSSARY
OF WIRE ROPE TERMS
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| Abrasion - Surface wear on the wires of a wire rope | Common Strand - Galvanized strand made of galvanized iron wire whose grade is common iron |
| Acceleration Stress - Additional stress imposed on a wire rope due to increasing the velocity of the load | Conical Drum - Grooved hoisting drum of tapering diameter |
| Aircraft Cables - Strands, cords and wire ropes made of special strength wire primarily for aircraft controls and miscellaneous uses of Aircraft Industry | Construction - Design of wire rope including number of strands, number of wires per strand and arrangement of wires in each strand |
| Alternate Lay - Lay of a wire rope in which the strands are alternately regular and Lang Lay | Continuous Bend - Reeving of wire rope over sheaves and drums so that it bends in the same direction, as opposed to reverse bend |
| Area, Metallic - Sum of the cross-sectional areas of individual wires in a wire rope or strand | Conveyor Rope - Parallel endless wire ropes used to carry material |
| Armored Rope - Rope with individual strands spirally wrapped with flat steel wire | Core - Member of a wire rope about which the strands are laid. It may be fiber, a wire strand or an independent wire rope |
| Back-Stay - Guy used to support a boom or mast: or that section of a main cable, as on a suspension bridge, cable-way, etc., leading from the tower to the anchorage | Coring Line - Wire rope used to operate the coring tool for taking core samples during the drilling of a well |
| Bending Stress - Stress imposed on wires of a wire rope by bending | Cord - Term applied to small sizes of wire ropes |
| Breaking Strength (wire rope) - The measured load required to break a wire rope in tension | Corrosion - Chemical decomposition of the wires of a rope by exposure to moisture, acids, alkalines or other destructive agents |
| Breaking Strength (aggregate wire) - The sum of the breaking strength in tension of all the wires of a wire rope when the wires are tested individually | Critical Diameter - Diameter of the smallest bend for a given wire rope which permits the wires and strands to adjust themselves by relative movement while remaining in their normal position |
| Bridle Sling - A two-part wire rope sling attached to a single part line. The legs of the sling are spread to divide and equalize the load | Cylindrical Drum - Hoisting drum of uniform diameter |
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Bright Rope
- Wire rope
made of wires that are not coated with zinc, tin, or any other protective
metal
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Deceleration
Stress -
Additional stress imposed on a wire rope due to decreasing the velocity
of the load
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| Button Conveyor Rope - Wire ropes to which buttons or discs are attached at regular intervals to move material in a trough | Diameter - Distance measured across the center of a circle circumscribing the wires of a strand or the strands of a wire rope |
| Bronze Ropes - Wire rope made of bronze wires | Dog-Leg - Permanent short bend or kink in a wire rope caused by improper use |
| Cable - A term loosely applied to wire ropes, wire strands, and electrical conductors | Drum - A cylindrical flanged barrel of uniform or tapering diameter on which rope is wound for operation or storage. It may be smooth or grooved |
| Cable-Laid Wire Rope - A type of wire rope consisting of several wire ropes laid into a single wire rope | Efficiency (wire rope) - Percentage ratio of measured breaking strength of a wire rope to the aggregate strength of all individual wires tested separately |
| Centers - Wire, strand or fiber in the center of a strand about which the wires are laid | Elastic Limit - Limit of stress above which a permanent deformation takes place within the material |
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Choker
- Short wire
rope sling used to form a slip noose
around the object to be moved or lifted
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Endless Rope - Rope whose two ends are spliced together |
| Clevis -A "U" shaped fitting with pin | Equalizing Thimbles - Special type of fitting used as a component part of some wire rope slings |
| Clip - Fitting for clamping two parts of wire rope | Extra High Strength Strand - A grade of galvanized or bright strand |
| Come-Along - Device for making a temporary grip on a wire rope |
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