Isp opticslightpath

The sleeve of the pinion which carries M also carries the dial finger, and if the dial is properly graduated its finger will indicate the weight.

LightPathoptics

The crank shaft carries a pinion which gears into a toothed wheel of a coarse pitch, carrying cutters at the ends of the teeth.

Edmundoptics isp

The wing of the bird, like that of the insect, is concavo-convex, and more or less twisted upon itself when extended, so that the anterior or thick margin of the pinion presents a different degree of curvature to that of the posterior or thin margin.