. First century of national existence; the United States as they were and sawim: BOOK-BINDING. 273 knife used in this machine is 21 inches long,and has a short, vibratory movement; thuscombining the advantages of the long sta-tionary knife with those of the ordinaryplough. The work to be trimmed is placedagainst the adjustable guide on the bed ofthe press, in front of the knife, and is com-pressed by the wheel and screw. The table,on which the press stands, is adjustable inall directions, and is also self-acting, so that,when thrown into gear, it rises to
. First century of national existence; the United States as they were and sawim: BOOK-BINDING. 273 knife used in this machine is 21 inches long,and has a short, vibratory movement; thuscombining the advantages of the long sta-tionary knife with those of the ordinaryplough. The work to be trimmed is placedagainst the adjustable guide on the bed ofthe press, in front of the knife, and is com-pressed by the wheel and screw. The table,on which the press stands, is adjustable inall directions, and is also self-acting, so that,when thrown into gear, it rises to the re-quired height and disengages itself—thuspreventing injury to the knife—and thendrops down to its original position. Threesides of the work can be successively pre-sented to the action of the knife, by simplyturning the press to the quarter and half-turn stops. The machine can be workedeither b}- hand or steam power, and can beeasily adjusted to cut any size from 3 to 18inches long, and from 1 to 16 inches machine has been in operation sometwenty-five years. Tlie backs now
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Keywords: ., bookauthorhodgejam, bookcentury1800, bookdecade1870, bookyear1874
