The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose; (1902)
Barber, Thomas Walter. [from old catalog] · New York, Spon & Chamberlain · leaf 195
heel. 1536. Screw gear, used in place of bevil gear. Shafts at right angles; teeth at an angle of 45°. 1537. Variable speed cone gear. 1538. Va-riable speed square gear. 1539. Variable speed oval or elliptical gear. 1540. Irregular gear. 1541. Internal or epicycloidal gear. See Nos. 550 and 1545.… … pi p-^=^ !~7 fe hrr -• k=--3 i h-S i
Mechanical movements
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