he piston, thelength of the stroke must beara very small proportion to thediameter of the cylinder. Thishas, in many cases, renderedit necessary in such vessels tosubdivide the power of the engines among four smaller cylinders, all the pistons being directlyattached to cranks on the screw-shaft… … STEAM NAVIGATION. a number of small cylinders, ranged often in a horizontal positionon either side of the screw-shaft, allow of the play of all thereciprocating parts within a small height, so as to keep the wholebelow the water-line. 83. Another expedient for the protection of the machinery…
Steam-engines · Steam-navigation · Locomotives
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