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 540
device for this purpose. A is the paddle-shaft; B, a cast-iron disk keyed thereon; C, a wrought-iron strap surrounding the disk, lined with brass; D, a brass cushion with a tightening key for pro-ducing friction by bringing the cushion in contact with the disk; F, the brass lining of tiie…
Mechanical engineering -- Dictionaries
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