mer is substituted by atmospheric air, the practical arrangement for effecting the combustion —_——q3742e SS Improved Apparatus for Punching Shoe Uppers, being the following: The gases are admitted into one com. The machine illustrated in the engravings is intended for mon tube, frem thence they… … the axes of the screws, D, are moved to any position required, so as to correspond with the shape of the shoe to be punched. The machine is set for into many small jets ; these are delivered through a gauze of is obtained by immersing the work previously in a solution use by drawing the punches, by…
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