Holley, Clifford Dyer · New York, Wiley · leaf 276
each other and what relation their direction has to the direction of the movement. The rela- tion of the furrows is shown on Fig. 80. For the grinding of colors the following kinds of dressings should be used. Fig. 81 is an illustration of a French buhrstone of about thirty inches in diameter,… … FIG. 80. — ADJUSTMENT OF FURROWS. inch apart and the grinding face should not be over 7J to 8 inches. In order to facilitate the introduction of the material to be ground, it is preferable to deepen the fur- rows somewhat toward the center, as well as deepen the grinding surface toward the eye of…
Pigments · White lead · Zinc
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