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Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)

D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 466

An illustration from Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts, 1880, leaf 466 — best adapted to quick motion and light work, and is unsuitedto heavy mortising with slow motion. MORTISING AND TENONING MACHINES. 445 4. Machines where the stroke is produced by a variable eccentric, increasing or diminishing thethrow of the chisel-bar in both directions. This class requires a… … 5. The graduated-stroke mortising machine, where the motion is produced by lengthening the con-nection from the eccentric to the chisel-bar, starting from a still point. 6. Machines where the chisel-bar has a progressive downward movement to the required depth ofmortise, the crank-shaft and guides…

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