The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 162
inwhich a vacuum can be produced, after the same has been appliedto one end of a log of wood; so that a preserving or colouringliquid, contained in a suitable vessel or receptacle at the otherend, will be caused, by atmospheric pressure, to pass thro ugh thelog in the longitudinal direction of the… … gauze attached to its lower end. c is a metal disc, fixed to thecylinder a, having an opening at its centre, communicating withthe interior of the cylinder ; and between this disc and tlie end ofthe log of wood d, a narrow leather washer e, is interposed, so thatthere will be a small space left…
Architecture · Civil engineering · Science
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