Taper suspension bridge Taper suspension bridge The taper suspension bridge (also known as the taper principle) is a bridge design patented by James Dredge in 1836. On a conventional suspension bridge the whole deck is suspended on vertical cables, rods or chains from a single cable or chain slung between two supporting towers. The taper suspension bridge that James Dredge devised in the early nineteenth century differs from the conventional suspension bridge design in that it is, in effect, a double cantilever bridge. Each of the opposing cantilever systems are self-supporting. The cantilever half-deck structure of each cantilever is suspended on angled chains
All-dielectric self-supporting cable No metal wires are used in an ADSS cable. Optical fibers are either supported in loose buffer tubes, or arranged in a ribbon configuration. To prevent strain on the fibers, most types provide the fibres with excess slack length compared to the length of the supporting member. Several designs of cable are used. In one type, small plastic tubes each containing up to eight fibers are filled with a gel compound, and stranded around plastic rods. The hydrocarbon gel compound prevents water from wicking along the length of the cable. The inner structure is wrapped with polyester tapes and encased