Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 546
which a small quantity of grease is smeared, that noair may pass through any remaining inequalities on itssurface, and a ground glass plate m n imbedded in a metallictable, on which it stands. 2d. A Barrel B, or chamber into which the air in thereceiver is to expand itself. It is a hollow cylinder… … graphicalrepresentation; Fig. 319. 3d. A Stop-cock h, by means of which the communica-tion between the barrel and receiver is established or cutoff at pleasure. This cock is a conical piece of metal fitting stop-cock, orair-tight into an aperture just at the lower end of the bar- valve;rel, and is…
Mechanics · Acoustics · Optics
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