. Memoirs of the American Academy of Arts and Sciences. ith all the soft rollers, and isdriven bj- a wheel fixed to its axis, which is in turnmoved bj- a rack live feet long attached to the sideof the bed. The ink is in an iron box or fountain,I/, two feet two inches long, three inches wide, andtwo inches deep. One side of this box is removed, and its place supplied by aniron roller, which, being turned slightly by each movement of the bed, distributesthe ink on the soft roller. An important part of the distributing apparatus is ahorizontal i-evolving table, z, 28 inches in diameter, which, tu
. Memoirs of the American Academy of Arts and Sciences. ith all the soft rollers, and isdriven bj- a wheel fixed to its axis, which is in turnmoved bj- a rack live feet long attached to the sideof the bed. The ink is in an iron box or fountain,I/, two feet two inches long, three inches wide, andtwo inches deep. One side of this box is removed, and its place supplied by aniron roller, which, being turned slightly by each movement of the bed, distributesthe ink on the soft roller. An important part of the distributing apparatus is ahorizontal i-evolving table, z, 28 inches in diameter, which, turning partly round ateach movement of the bed, brings constantly new parts in contact with the inkingroller, and thus equalizes the distribution. The press is thrown out of gear, so far as the movements of the platen areconcerned, by means of the rod h, which is fixed to the bar h, and the lever ?,resting on the arm h, and counterbalanced by the weight /. By pulling down thehandle, m, the rod h is drawn upwards, and the slide bar h raised and detached. Fig. 6. 344 MEMOIR OF DANIEL TIJEADWELL. from the cam, d or /. The movements of the bed are arrested by means of alever, which removes the groove lever from the groove m the wheel t. They were usually arranged in pairs, as in Fig. 7, driven by one wheel betweenthem, and giving the impression on each alternately.
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Keywords: ., bookidmemoirsofamerica1888amer, booksubjectscience, bookyear1783
