Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 425
fixed there by means ofwhite lead, or any other cement not acted on by spirit or by water;the tube is also secured above by a ring or cap. Parallel with thetube is a brass plate, on which the divisions are subsequently to bemarked. The plug of the cock has three ways, or openings, as shownin figs.… … The apparatus being complete as above described, the cock isturned to the position fig. 3, and the cask is filled by a hole at thetop. It is evident, therefore, that the liquor will stand in the tubesat the same height it does in the cask, provided the tube is wideenough to avoid any sensible error…
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