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 75
223. DIAGONAL TWIN-SCREW EN-GINE, arranged so that the connecting rodscross each other, thus economizing space. … 224. TWIN-SCREW VERTICAL CYLIN-DER ENGINE.—The outer gears are on thescrew shafts; the inner gears are idlers to keep thebeam even.
Mechanical movements
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