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A pipe hitch is a hitch-type knot used to secure smooth cylindrical objects, [2] such as pipes, poles, beams, or spars. According to The Ashley Book of Knots , a pipe hitch is "used to lower a pipe or hoist one" [ 1 ] and as "another method of tying to a rectangular timber."
A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.
The reef knot can capsize if one of its standing ends is pulled.. A knot that has capsized or spilled has deformed into a different structure. Although capsizing is sometimes the result of incorrect tying or misuse, it can also be done purposefully in certain cases to strengthen the knot (see the carrick bend [4]) or to untie a seized knot which would otherwise be difficult to release (see ...
Pipe hitch – hitch-type knot used to secure pipes/poles; Plafond knot; Poldo tackle – an instant tension-applying and tension-releasing mechanism in rope; Pratt knot – a method of tying a tie around one's neck and collar; Pretzel link knot – in knot theory, a branch of mathematics, a pretzel link is a special kind of link; Prusik knot ...
In plumbing, a trap is a U-shaped portion of pipe designed to trap liquid or gas to prevent unwanted flow; most notably sewer gases from entering buildings while allowing waste materials to pass through. In oil refineries, traps are used to prevent hydrocarbons and other dangerous gases and chemical fumes from escaping through drains.
The taut-line hitch is an adjustable loop knot for use on lines under tension.It is useful when the length of a line will need to be periodically adjusted in order to maintain tension.
Technologies for the removal of solids include microscreens, dual-drain tanks, swirl separators, plate separators, baffles, media filters, air flotation, foam fractionation, chemical flocculation, and constructed wetlands. But because of the impracticality and / or high costs of these methods, most of them are not applicable for commercial ...
A penstock is a sluice or gate or intake structure that controls water flow, or an enclosed pipe that delivers water to hydro turbines and sewerage systems. The term is of Scots origin, and was inherited from the earlier technology of mill ponds and watermills , with penstocks diverting pond waters to drive the mills.