Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . ound downward and longitudinal mo-tion to the same, which insures the gliding cutessential to the perfect working of a machine of tinscharacter. As the crank completes its revolutionthe pitman is of course forced outward, therebybringing the cutter-stock upward and outward toits original position, ^ireparatory to a repetition ofthe cutting o]ieration. , Soules u
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . ound downward and longitudinal mo-tion to the same, which insures the gliding cutessential to the perfect working of a machine of tinscharacter. As the crank completes its revolutionthe pitman is of course forced outward, therebybringing the cutter-stock upward and outward toits original position, ^ireparatory to a repetition ofthe cutting o]ieration. , Soules undercut machine has the knife below thebed, and the knife lifts with a shearing cut againsta pile of paper held down on the bed by a )Kirtion of the bed or table outside the knife isattached to the knife-carrier in .such manner as toyield sufficiently to receive the part of the pa]iercut off. The knife moves only far enough to cutthrough tile paper, instead of passing through itswhole stroke, as in guillotine machines. PAPER-ENAMELING MACHINE. 1621 PAPER-FILE. Semples paper-cutter (Fig. 3525) is used tor trim-ming the folded edges of books and magazines afterthe sheets are stitched. Two bundles of books are Fig. Paper-CuUhis Machine. placed on platform a with tlieir backs to the stand-ards c c, and are lield down by the screw b. Tlieplatform is then drawn up the inclined track by theaction of worm-gear c, and the sheets are broughtagainst the knife d with a drawing cut. Phitfomia is pivoted to carrier/, and revolves to present thetop, bottom, and sides of the books to the knife. Paper-en-amel-ing Ma-chiue. I ii Fig. 36-26,the enameling is thoroughly stirred withinthe chest A by stationary and revolving brushesB C ; falling through the diaphragm D to the cham-ber F, it passes tlirough the gate a to the spout G,whence it is admitted by the ailjustable screw-valves4 c to the brush-roller /, rotating within a cylinderhaving an opening at its lower side, t
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