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 788
3S!W. 3893. … is cut a groove running from end to end, and upon it is a pinion having a feather fixed to the pinionand a sliding fit in the groove of the shaft or spindle, so that the pinion is rotated with the shaft,and yet may move along it. The pinion is held by the frame of the head and traverses with it,…
Mechanical engineering -- Dictionaries
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