r explained. The fixtd disks, E, are smaller than the external hoop, A,or frame, and, also, smaller than the revolving disk, the edgeof the latter fitting in a groove cut on the inside of the hoop,A. Thus, an annular space is loft between the hoop and thedisks, E, through which the outer part of… … On the addition and subtraction side, the fixed disk, E,has marked on its outer edge numbers from 1 to 100 inclu-sive, placed at equal distances from each other, only the firstten of these being shown in our engraving, drawn in full.therest being indicated in fives on account of limited spacs. Upon…
Patents · Iron · Consists · Assignor · Tho · Scientific American · Tube · Patent issued · Letters patent · Varnish room · Specific gravity · Tartaric acid · Sewing machine · Iron wire · Revolving disk · Gaseous fuel
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