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 115
lamping-lever is pulledforward, and all the up-per jaws are closed uponthe brim, which i- thusfirmly held and slowlyexpanded to full size.The hat-block is in themean time raised andthe banding-lever low-ered ; and after the blockhas been expanded, theworkman gives the band-ing-lever rapid… … The hats are next washedThey are then ready for the pouncing machine. HAT-MAKING MACHINERY. 105 Pouncing Machines.—Various forms of these machines are used. In one of the simplest the hatis subjected to the scraping action of a rapidly revolving cutting-cylinder. In another, the abradingmaterial is…
Mechanical engineering -- Dictionaries
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