Cable ropes

Q. 3. Is a CDZ control line expected to be constructed of a horizontal cable, rope, wire, tape, or other equivalent material attached to vertical support members ... 

A. 3. Control lines or their equivalent are likely to include horizontal cable, rope, wire, tape, or other equivalent material attached to vertical support members. As stated above, the control line, or an equivalent, must (1) control access, (2) be highly visible, and (3) clearly demarcate the boundaries of the CDZ. Appendix D s guidelines for control lines explain that control lines consist of ropes, wires, tapes, or equivalent materials, as well as supporting stanchions. Appendix D also recommends that each line be rigged and supported so that the control line is between 39 and 45 inches from the... 

Single twisted yams are often twisted together to form pHed yams. Several pHes are twisted together to form cables or ropes. A method for analyzing yam constmction and the nomenclature used to define yam constmction is found in ASTM D1244. 

Centering equipment is used to ensure that the impressed current anode is centrally situated in the borehole. The anode with the centering device can be inserted in the borehole by use of, for example, plastic-insulated wire ropes (see Fig. 9-11). After each of the anodes is inserted, the free space is filled with No. IV coke up to the level of the next anode about 50 kg of coke are necessary per meter of anode bed. The wire rope is fixed to a support above the borehole and provides offloading to the anode cable. The anode cables are laid to a junction box so that the... 

Seele, /. soul shaft (of a blast furnace) core (as of a rope or cable) bore (of a tube). Seelenruhc,/. tranquillity mental rest. See-iicht, n. marine phosphorescence, -luft, /. sea air. -moos, n. sea moss, carrageen, -pflanze,/. marine plant, sea plant, -rose,/, water lily (esp., Nymphaea). -salz, n. sea salt, -sand, m. sea sand, -schiick, m. sea ooze, -seide,/. sea silk (from algae) byssus silk, -tang, m. seaweed (esp., Fucua), sea tang, -tier, n. marine animal -wasser, n. sea water. 

Tau, m. dew. — n. rope, cord, cable, taub, a. deaf numb empty, barren. 

Wire rope is most often furnished preformed, but can be furnished non-preformed, upon special request by the purchaser. A preformed rope has the strands shaped to the helical form they assume in the finished rope before the strands have been fabricated into tbe rope. The strands of such preformed rope shall not spring from their normal position when the seizing bands are removed. Cable tool is one of the few applications for which nonpreformed is still used. 

In oilfield service, wire rope is often referred to as wire line or cable. For clarity, these various expressions are incorporated in this recommended practice. 

Cable-tool drilling lines. Movement of wire rope against metallic parts can accelerate wear. This can also create sufficient heat to form martensite, causing embrittlement of wire and early wire rope removal. Such also can be formed by friction against the casing or hard rock formation. 

In the Forth, Severn and many other suspension bridges, zinc coatings have an important function. The whole main structure is of steel and has been zinc-sprayed on the external surfaces, while the main cable and hanger ropes have been coated by continuous hot-dip galvanising. Case histories of galvanised multi-truss bridges cover more than 30 years. 

Otter (or Paravane). A protective underwater device which, when towed with a wire rope from a fitting on the bow of a ship, rides out from the ship s side and cuts the cables of anchored mines. The mines then rise to the... 

Kevlar fibers are supplied by DuPont as Kevlar-29 and 49. The former is characterized by high tensile strength and the latter by high initial modulus(4). Some Kevlar-29 end uses are in ropes and cables, which are as strong as steel at one-fifth the weight, and in ballistic vests. Some Kevlar-49 end uses are in reinforcing resins and composites for aerospace structures, boat hulls, and sport equipments. 

Kevlar fibers are available in four forms Kevlar, Kevlar 29, Kevlar 49 and the recently developed Kevlar 149. Kevlar is designed specifically for reinforcements of elastomers (e.g. tires and belts), while Kevlar 29 is used primarily for tensile members sueh as ropes, cables, webbings and ballistic cloth. Kevlar 49 and 149 are designed for reinforcement of high performance PMCs. Kevlar 149 offers a 40%... 

Industrial, including rope, twine, conveyor belts, carpet backing, tarpaulin, awnings, cable, bristles home textile applications, including floor covering, upholstery fabric, wall covering, blankets apparel, especially sportswear and hosiery... 

The most spectacular application example to date is perhaps the Aberfeldy footbridge over the river Tay in Scotland (see Fig. 11.4). This bridge is 113-m long, has a deck width of 2.2 m, and a main span of 113 m [4]. The entire deck structure, hand rails, and A-frame towers are pultruded composites, and the cable stays are Kevlar ropes. The deck structure is assembled from a modular system of pultruded 6-m long, hollow components, which consist of 70 percent by weight of E glass and 30 percent pigmented isophtalic polyester resin. 

A pulley consists of a wheel with a grooved rim in which a pulled rope or cable is run. Pulleys are commonly used with ropes or steel cable to change the direction of a pulling force or to add mechanical advantage. 

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