Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 364
./V ^ ^ ^ 1465. STONEGRINDING AND POLISH-ING MACHINE. The lap for grinding isof cast iron in a concentric series of rings,through which sand and water is fed. Therod connecting the lap with the driving shafthas a universal joint at each end and a swivelhandle for guiding the lap. The upper shaftis…
Mechanical movements
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