You're viewing this item in the new Europeana website. View this item in the original Europeana.

Brown - figure 035

Variable rotary motion produced by uniform rotary motion. The small spurpinion works in a slot cut in the bar, which turns loosely upon the shaft of the elliptical gear. The bearing of the pinion-shaft has applied to it a spring, which keeps it engaged; the slot in the bar is to allow for the variation of length of radius of the elliptical gear.