A handbook on the teeth of gears, their curves, properties, and practical construction
A technical handbook by American gear manufacturer George B. Grant, published in Boston in 1887 for machinists, draftsmen, and engineers laying out gear teeth. The 67 figures are line diagrams of tooth profiles, involute and cycloidal curves, rolling circles, and meshing pairs, with lettered points, dashed construction lines, and diagonal hatching marking solid metal against broken-edged fragments of wheel rim.
