Annual report of the Commissioner of Patents (1837)
United States. Patent Office · [Washington, D.C.] : Patent Office · leaf 1155
isite. The third reser-voir is the step in which the main shaft revolves—that may be filled with oil.The feeding is regulated by a shoe, acting against the tube of the upperplate, which causes the shoe to vibrate ; this, with the slide in the hopper,regulates the quantity fed into the mill. Screw… … i Bogardu-v^s eccentric milt, for hulling and gvindAx^g dry subi^tmnies. Doc. No. 140. For grinding paints and liquid substances. 1147 The mill should run to the right, and make from one hundred and fiftyto two hundred revolutions per minute. The belt passes from the back ofthe mill, running over…
United States. Patent Office · Patents · Agriculture
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