weaker than the teeth in the ences of the wheels it is evident that the arc, G F, must be wheel, B, and the pins would soon wear away from the small equal to the arc, G amount of wearing surface they possess. B, we place our generating circle in contact with the inside E. The conclusion, F ug WMG 7… … scorpions; these, when fixed face to face and goaded into in the direction from G to F, would impart a continuous lines, representing the surfaces of projecting radial ribs, ar- fury, at once commenced to beat the air with their palps and and uniform motion to the pinion, A. ; : ranged at equal…
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