Five hundred and seven mechanical movements
A numbered reference of mechanical movements compiled by Henry T. Brown, published in New York by Brown & Seward in 1903 for machinists, inventors, and drafting students. Each entry is a small line diagram of gears, cams, ratchets, pawls and linkages, drawn in flat black outline with hatched shafts and dashed motion paths, and paired with a numeral set in italic.
