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Fittings allow multiple pipes to be connected to cover longer distances, increase or decrease the size of the pipe or tube, or extend a network by branching, and make possible more complex systems than could be achieved with only individual pipes.
Boat building is the design and construction of boats (instead of the larger ships) — and their on-board systems. This includes at minimum the construction of a hull , with any necessary propulsion, mechanical, navigation, safety and other service systems as the craft requires.
Frames support the hull and give the ship its shape and strength. In wooden shipbuilding, each frame is composed of several sections, so that the grain of the wood can follow the curve of the frame. Starting from the keel, these are the floor (which crosses the keel and joins the frame to the keel), the first futtock , the second futtock , the ...
This mid-size truck's steel-reinforced SMC bed is designed to handle loads of up to 1,100 lb (499 kg) [23] and has six (2006–2008 models) or eight (2009–2014 models) tie down cleats in a high/low configuration rated at 350 lb (159 kg) each.
There are a number of different standards used worldwide to design fender systems. The most commonly used one, is the PIANC "Guidelines for the design of fender systems, 2002", [9] which is the update of its predessecor from 1984. In Japan the Japanese Industrial Standards (JIS) are commonly used, whereas in the United Kingdom and the United ...
It is usually made of steel, brass, stainless steel, aluminium or plastic. Due to the great variety of the designs and the number of countries in which they were created, it is difficult to trace the origin of many. Patents that cover designs similar to those below include: 1876: Hose-coupling, No. 175,232. [1] Coupling for hose and pipe. US ...
On a keelboat, "outrigger" refers to a variety of structures by which the running rigging (such as a sheet) may be attached outboard (outside the lateral limits) of the boat's hull. The Racing Rules of Sailing generally prohibit [ 3 ] such outriggers, though they are explicitly permitted on specific classes, such as the IMOCA Open 60 [ 4 ] used ...
The principle of operating a lock is simple. For instance, if a boat travelling downstream finds the lock already full of water: The entrance gates are opened and the boat moves in. The entrance gates are closed. A valve is opened, this lowers the boat by draining water from the chamber. The exit gates are opened and the boat moves out. [11]
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