The synthetic dyestuffs : and the intermediate products from which they are derived (1905)
Cain, John Cannell, 1871-1921, Thorpe, Jocelyn Field, 1872-1940 · London : C. Griffen and Co. · leaf 197
erations conducted underdiminished pressure, is best arranged by soldering a water pipe to a metal pump.These (which cost about three shillings) cannot be satisfactorily united with thewater supply by rubber tubing. A piece of ordinary rubber tubing is fitted to the.exit tube of the pump, to carry… … Fig 1. J THE TECHNICAL LABORATORY. 179 ing glass taps, so as to allow two or more attachments to the suction. Tn existinglaboratories, where no provision has been made for filtering under reducedpressure, it is exceedingly convenient to join a rubber-lined brass union tothe metal pump by means of a…
Dyes and dyeing
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