rge, so long as steam is supplied from the boiler. A small pet tions. Its capabilities will best be understood from a de- Small pumps of this form are constructed specially for the cock, shown near the top of the cylinder in Fig. 2, admits scription of its mode of action which we will now give from… … aoise was terrific, and could be operation of the pump thus heard for a distance of more constructed, when the cylinder than two miles. Thenoise was is filled with water, the presguré on the under side of the | above the plate, F; this allows of the diffusion of the steam something like the loud…
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