Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 383
o, ^ 1555. PIANO KEY AND ACTION.— A study of complex movement. … 1556. LAPIDARY OR LITHOLOGICALLATHE for amateur work. A vertical spindlewith disc lap of lead, driven by a bevel gear andcranks, through a vertical shaft pulley and belt.A splitting disc and spindle are also driven fromthe main pulley. 1557
Mechanical movements
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