Hutton, Frederick Remsen, 1853-1918 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 472
re upon its inner side; but tomake the joint steam-tight, and to hold it from displacementat other times, the lid has one or two studs symmetrical uponits long axis, which pass up through a proper hole or holes ina bridge or dog of cast or wrought iron which spansthe manhole-opening, so that when… … Fig. 350. the lid and the plate is made tight by a gasket of rubber orasbestos-board or similar material whose compressibility shallcompensate any inaccuracy of contact-surfaces. It is rare thatfinish of surfaces can be secured or maintained which willmake a true metal-and-metal joint without…
Mechanical engineering · Steam power plants
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