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 11
pendicular to each other, but turned pinsmay be inserted in other surfaces than planes, and inthis way such wheels can be made to work togetherwhen the axes have other relative positions than theone here shown. All these may be properly said to belong to the same class, the characteristicsbeing…
Mechanical engineering -- Dictionaries
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.