American School of Correspondence · Chicago, American school of correspondence · leaf 160
APPARATUS FOR GRINDING FLATS FROM THEIR WORKING SURFACES Mason Machine Woiks. COTTON SPINNING. 101 … ee 139 102 COTTON SPINNING. instead of using the two bands, D and D, for driving the grinders,a single band, E^, is used that runs from the groove in the pulley,D^, around the pulley, N, on the doffer grinder, then around thepulley, N^, on the cylinder grinder, and then down around the…
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