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A hold-down may also refer to clamping device used to anchor a pipe to a structural steel element or concrete floor or allow movement of the pipe in an axial direction. [1] At the bottom, the hold down is connected to the concrete foundation or structural slab by an embedded or epoxied anchor bolt. At the top, the hold down is connected to a ...
The ladders are made by threading and fixing a series of hardwood, machined steps, each not more than 400 mm × 115 mm × 25 mm (15.75 in × 4.53 in × 0.98 in), onto two pairs of minimum 18 mm (0.71 in) diameter manila ropes, and binding each step to the ropes at 310 ± 5 mm (12.20 ± 0.20 in) intervals.
Legrand S.A. is a French industrial group historically based in Limoges in the Nouvelle-Aquitaine region. [ 1 ] [ 2 ] Legrand is established in 90 countries [ 3 ] and its products are distributed in nearly 180 countries. [ 4 ]
It is the use of spreaders (long treads that extend well past the vertical ropes) in a pilot ladder that distinguishes it from a Jacob's ladder. When not being used, the ladder is stowed away, usually rolled up, rather than left hanging. On late 19th-century warships, this kind of ladder would replace the normal fixed ladders on deck during battle.
A stay is part of the standing rigging and is used to hold a mast upright. It is a large strong rope, wire or rod extending from the upper end of each mast and running down towards the deck of the vessel in a midships fore-and-aft direction.
An inland construction tender is a type of ship used to build and service shore structures such as piers and buoy trestles. It is also used to maintain buoys and aids to navigation. [1]
USNS Gordon at sea. The Gordon class are group of two LMSRs. Gordon was built in Denmark in 1972 as MV Jutlandia, and entered commercial service on 1 June 1973.After some time spent in commercial service she was lengthened by Hyundai Heavy Industries in 1984, and later went on to be acquired by the US Navy under a long term charter.
Marine propulsion is the mechanism or system used to generate thrust to move a watercraft through water. While paddles and sails are still used on some smaller boats , most modern ships are propelled by mechanical systems consisting of an electric motor or internal combustion engine driving a propeller , or less frequently, in pump-jets , an ...