摘要:
A stranded rope (12) of large size is made by assembling a plurality of strands (10) and a core (11) side-by-side along a track (13); securing the leading ends in a clamp (14); securing the trailing ends in spaced anchorages (17, 18); applying tension to the strands (10) and core (11); guiding the strands (10) intermediate the clamp (14) and anchorages (17, 18) into the closed rope array round the core (11) by means of a closing die (20) on a trolley (19); moving the trolley (19) from the clamp (14) to the anchorages (17, 18); rotating the clamp (14) progressively as the trolley (19) moves progressively; rotating the trailing ends of the strands (10) and core (11) progressively in the same direction as the damp (14); securing all the strands (10) and the core (11) together adjacent the trailing ends; and releasing the tension from the strands and the core.
摘要:
Individual elongate elements (wires 2 or strands 4) are drawn off stationary coils (21) in such a manner that the element (2,4) is elastically twisted. The elements (2,4) are guided to a stationary closing means (23) in which a bundle of the elements is formed, the elements immediately before being formed into the bundle being substantially free from any curvature that will result in residual slackness in the elongate member (1,3) being manufactured. The bundle is withdrawn from the closing means (23) and is simultaneously rotated about its axis so as to form the elongate member (strand 1 or rope 3) and substantially untwist the elongate elements (2,4). The product can be at least 300 m long.
摘要:
A stranded rope (12) of large size is made by assembling a plurality of strands (10) and a core (11) side-by-side along a track (13); securing the leading ends in a clamp (14); securing the trailing ends in spaced anchorages (17, 18); applying tension to the strands (10) and core (11); guiding the strands (10) intermediate the clamp (14) and anchorages (17, 18) into the closed rope array round the core (11) by means of a closing die (20) on a trolley (19); moving the trolley (19) from the clamp (14) to the anchorages (17, 18); rotating the clamp (14) progressively as the trolley (19) moves progressively; rotating the trailing ends of the strands (10) and core (11) progressively in the same direction as the damp (14); securing all the strands (10) and the core (11) together adjacent the trailing ends; and releasing the tension from the strands and the core.
摘要:
A flexible tension member for structural applications comprises twenty or more high strength rods (R) bundled helically with a lay length 20 to 150 times overall diameter, the rods (R) upon introduction being substantially free from curvature resulting in slackness in the bundle and introduced without flexural stresses significantly exceeding the yield point of the rod structure. The invention may utilise rods of solid circular or non-circular cross-section, or tubular and formed of metal, e.g., steel, and/or non-metallic material, more particularly fibre reinforced plastics, and results in a smooth uniform appearance, with good integrity and no signs of slackness despite the unusually long lay length employed.
摘要:
Individual elongate elements (wires 2 or strands 4) are drawn off stationary coils (21) in such a manner that the element (2,4) is elastically twisted. The elements (2,4) are guided to a stationary closing means (23) in which a bundle of the elements is formed, the elements immediately before being formed into the bundle being substantially free from any curvature that will result in residual slackness in the elongate member (1,3) being manufactured. The bundle is withdrawn from the closing means (23) and is simultaneously rotated about its axis so as to form the elongate member (strand 1 or rope 3) and substantially untwist the elongate elements (2,4). The product can be at least 300 m long.
摘要:
A flexible tension member for structural applications comprises twenty or more high strength rods (R) bundled helically with a lay length 20 to 150 times overall diameter, the rods (R) upon introduction being substantially free from curvature resulting in slackness in the bundle and introduced without flexural stresses significantly exceeding the yield point of the rod structure. The invention may utilise rods of solid circular or non-circular cross-section, or tubular and formed of metal, e.g., steel, and/or non-metallic material, more particularly fibre reinforced plastics, and results in a smooth uniform appearance, with good integrity and no signs of slackness despite the unusually long lay length employed.