Painters' colours, oils, and varnishes : a practical manual (1892)
Hurst, George H. (George Henry) · London : Charles Griffin & Company ; Philadelphia : J.B. Lippincott Co. · leaf 337
egulating the pressure between the rollers are provided, as also tension springs between the bearings, to allow a little play between the rollers in case any hard material should happen to accidentally get between them. A hopper between the first two rollers serves for the introduction of the… … Fig. 45. — Roller grinding mill. Fig. 45 shows a roller mill made by Messrs. Ritchie & Co., which has the three rollers arranged in an inclined plane, which it is obvious must be an improvement on the horizontal arrange- ment. A convenient size of such a mill has rollers measuring 22 x 14 inches,…
Paint · Varnish and varnishing
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