Elements of mechanism: elucidating the scientific principles of the practical construction of machines, for the use of schools, and students in mechanical engineering, with numerous specimens of modern machines, remarkable for their utility and ingenuity
A mechanics textbook by Thomas Baker, published in London by J. Weale in 1852 for schools and students of mechanical engineering, explaining the principles behind machine construction. The pictures are line engravings of gear trains, rack-and-pinion linkages, and a rotated sketch of a railway collision mechanism, with a machine tool drawn in side elevation; a designer could draw on their clear mechanical diagrams for technical schematic or industrial line art.

















