Model engine construction, with practical instructions to artificers and amateurs (1894)
Alexander, John Henry. [from old catalog] · London, New York, Whittaker · leaf 85
sly drilled two holes in the shell,through each of which one of the brass tubes passeswhen the gauge is fixed on to the boiler. Gauge-cocks (see Fig. 18). These are fitted tothe boiler to ascertain the height of the water F 66 MODEL ENGINE CONSTRUCTION. inside, and are used instead of a… … Fig. 19. are best purchased ready-made, as they are difficultto construct, and can be had from rV bore upto \ and larger sizes. The blow-off cock is the same as the above, butlarger, and is inserted through the shell oj)positeto the lowest part of the internal fire-box, and isused to blow off mud,…
Steam-engines · Machinery
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