Water pipe

Definition and stakes

Anonymous,  The boy's book of trades and the tools used in them (1866)

“ Water-pipes are made by lead being cast in moulds with a steel rod passing through their middles, according to the size required. The lead is poured into the space between the rod and the mould. After it is cool the rod is drawn out by machinery, and the mould which is made in halves is opened and the pipe taken out. The pipe is then much thicker and shorter than is required for use, but it is afterwards drawn between powerful iron rollers with grooves cut in their surfaces, an iron rod being again placed inside it. ”
Source: Gutenberg

George Iles,  Inventors at Work, with Chapters on Discovery

“ That form has descended to all modern piping for water, steam, and gas, because the best that a pipe can take. No other shape has, proportionately to capacity, so little surface for friction inside or rust outside. A locking-bar water pipe, devised by Mephan Ferguson, of Perth, Australia, is made of two plates of equal width, curved into semi-circles which are pressed at their ends into channel bars of [46] soft steel. As the locking-bars and joints are opposite each other, their joints can be tightly closed by a simple machine which exerts pressure in a straight line. ”
Source: Gutenberg

N. Hawkins,  Pumps and Hydraulics, Part 2 (of 2…

“ All the fittings in the pipe system of a plant should be of the best quality, and the piping for high pressures should be extra heavy to withstand the test of time and usage. Water pipes, when of commercial wrought iron, should be galvanized.
In laying out a line of piping or in replacing a portion of an existing line the measurements should be taken from center to center of the various fittings; the allowance for the threaded part of the pipe can be made after the center-to-center and over-all measurements have been made and before the pipe is cut.
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Source: Gutenberg

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