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Additional dissipation of shock loads can be achieved by fitting a snubber between the chain and a bollard or cleat on deck. This also reduces shock loads on the deck fittings, and the vessel usually lies more comfortably and quietly. Being strong and elastic, nylon rope is the most suitable as an anchor rode. [46]
The anchor bend is a knot used for attaching a rope to a ring or similar termination. The name is a misnomer , as it is technically not a bend , but a hitch . Origins
The snubber is therefore required to extend or retract with the normal operation of the pipe work. The snubber has low resistance to movement at very low velocities. Mechanical snubber: Whilst having the same application as the hydraulic snubber, retardation of the pipe is due to centrifugal braking within the snubber. A split flywheel is made ...
The force on an anchor may be much greater than the weight of the climber. There are various mechanisms that contribute to excess force, including Direction of pull, or vector pulling; Fall factor (if a fall occurs) Stiffness (reduced elasticity) of the climbing rope and anchor materials; improper slippage through the belay device
Rope rescue exercise on the Cologne Cable Car. Rope rescue is a subset of technical rescue that involves the use of rope, be it steel or cable rope, or more commonly used nylon, polyester, or other type of rope. Kernmantle (kern = core and mantle = sheath) rope as it is called, is available in various types: dynamic (stretches to absorb the ...
In offshore applications, huge lengths of rope are often housed on drums. The anchor winches on Saipem's Semac 1 pipe laying barge, for example, each hold 2,800 metres of 76mm (3 inch) diameter wire rope in 14 layers. Saipem's Castorone, the world's largest pipe laying vessel uses a wire rope that is 3,850m long and 152mm in diameter. It weighs ...
Some climbers will use a single full-thickness climbing rope with a diameter of approximately 9 to 11 mm (0.35 to 0.43 in), and some will use double ropes, or "half-ropes", to reduce rope drag (e.g. one rope is clipped into any given anchor or protection point), which have a reduced thickness of approximately 8 to 9 mm (0.31 to 0.35 in) to ...
A mechanical snubber is a mechanical device designed to protect components from excess shock or sway caused by seismic disturbances or other transient forces. [1] During normal operating conditions, the snubber allows for movement in tension and compression. [2] When an impulse event occurs, the snubber becomes activated and acts as a restraint ...
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