A treatise on colour manufacture : a guide to the preparation, examination, and application of all the pigment colours in practical use (1908)
Zerr, Georg, Rübencamp, R. (Robert), Mayer, Charles · London : C. Griffin · leaf 282
COLOUR MANUFACTURE 260 the charge during the process. The air needed for oxidising the lead is supplied in a very simple way. The top part of the centre door, which is placed a little higher than the two side doors, is left open (or preferably covered with a damper). In the free space between the… … be discharged into iron tanks underneath. To prevent any dissemination of dust, viz., any inconvenience to the work-people in this operation, the hollow space where collecting tanks are contained is closed by an iron door. The "dross" being specifically heavy, it is suitable, in view of the large…
Pigments · Coloring matter · Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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