rds the cards; ered a new composition corresponding to the gesso duro, stue- tems of rollers, all of which are operated by the one driving at the same time the action of the ratchet device causes a co duro (hard plaster of Paris, hard stucco), which was used partial revolution of the roller, H, and… … will now, there- perties above de- LADO'S IMPROVED NAPPING MACHINE, fore, please refer . tailed, and most to Fig. 2,in which one system of rollers and the driving me- quently fed in by the lower pair of rolls, and withdrawn by The price of this chanirm of the machine are shown in detail. the upper…
Internet Archive · Public domain (published before 1931). Free to use for anything.
