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 55
through the pores of the filter cloth, then along the ribs of the filter plate, B, and into the openings of the conduit, //, from whence it reaches the outside through the brass or wooden valve provided on the conduit. The solid colour, however, remains between the several filter cloths, and… … with the frame, and, after being cut out, can be removed for drying. The press is then put together again in the same manner and recharged with fresh liquid. The frames and filter plates for this purpose are preferably made of strong wood, the frame being held together by iron rods (Fig. 15). To…
Pigments · Coloring matter · Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
