ladder, to should be eccentric to the center of the grinding tool, so that the lens will be revolved on the face of the tool. The point A tool like that shown in Fig. 6 is necessary for finishing be used by carpenters, builders, firemen, and others who often require a ready means of reaching^an… … face should be cemented to the end of the stick, oats in three minutes. and the opposite side proceeded with as before An improved blinder for bridles has been pa- TOOLS FOB GRINDING SMALL LENSES. described. There are two methods of finishing tented by Messrs. George A. Gregerson, of Ro- the edges…
Patented · Patents · Color · Center · Consists · Scientific American · Salmon trout · Prussian blue · Sewing machine · Wood working · Send stamp · Steam boiler · York belting · Brook trout · Patent issued
Internet Archive · Public domain (published before 1931). Free to use for anything.
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