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 . e impression-cylinder s: and the fonn e, receiv-ing the first impression. The printed sheet then follows the largecylinder §? to the second /br;;?, receiving its second impressionfrom this form acting against the large drum §?. From the largecylinder the sheets are autcimatically delivered to the receiving-board, i is a counting device or arithmometer. The inkin
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 . e impression-cylinder s: and the fonn e, receiv-ing the first impression. The printed sheet then follows the largecylinder §? to the second /br;;?, receiving its second impressionfrom this form acting against the large drum §?. From the largecylinder the sheets are autcimatically delivered to the receiving-board, i is a counting device or arithmometer. The inking-rollers are shown above the inking-ejiinders, beneath whichare the ink-troughs The starting-lever is shown on the 3043 shows parts of the Bullock press detached, for a bet-ter understanding of their operation. ^ is a section midwiseof the principal working parts, a is the roll of paper which iscut off in sheets by the knife on cylinder *, which strikesthrough the web of paper into slots in the cylinder c. As soonas the sheet is cut off it is grasped by grippers on c, passed toimpiession-cylinder d. and around that, between it and type-eyUnder f, where the first side is printed. It ia then seized by Fig. BiiUocks Self-Feeding and Perfecting Press. grippers on the large cylinder s. and carried between that andthe second type-cylinder /to print the other side- The sheetsarc taken from the large cylinder by endle?? belts which passover pulleys, and are piled by the action of the flier h The large cylinder s; is covered with a blotting-pid to preventoffset when the face of the freshly printed sheet is carried on toit from cylinder d The inking-roller*, not shown in this view,are kept constantlv in contact with the tvpe or plates on cylin-ders e f. The eripper^ are so arranged thnt the delivery of asheet from one set to auotlier is certain and uniform. B shows the cutting and receiving cylinders, with the grip-pers on the latter in their positions before and aft
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Keywords: ., bookcentury1800, booksubjectin, booksubjectmechanicalengineering
