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 253
now find two numbers which, multiplied together, make 5, as 2^ x 2 = 5; hence one pair of wheelsmust be geared 2\ to 1 and the other pair 2 to 1, the small wheel of each pair being used as drivers,because the thread required is finer than the feed-screw. 240 LATHE, METAL-WORKING. 2.>s 2589. … Weighted Engine- Lathe. — InFig. 2587 is shown a back view ofthe Pratt A: Whitney Companys(of Hartford, Conn.) weighted en-gine-lathe. In this class of lathethe lower part of the slide-rest,termed the carriage, is kept downto the guide Vs by the weight shown suspended beneath thelathe-bed. This…
Mechanical engineering -- Dictionaries
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