23,900. Marks, G. C., [Campbell Printing Press and Manufacturing Co.]. Nov. 20. Associating and collecting apparatus; delivery apparatus; rotary machines; feeding sheets. - Relates to means for supplying cover sheets and associating them with the printed products of printing-machines. The printing-mechanism may consist of printing and impression cylinders A, D, B, C arranged to print sheets of different sizes The web is fed from a roll W by a feeding-in roller and tapes E, and passes round a looper F, round the cylinders B, C, and round a looper G to the feeding-out roller and tapes H. The feeding- devices and loopers are operated in a variable manner, according to the size of sheet to be printed, the printing - cylinders being driven at constant speed. The shafts of the arms carrying the loopers are rocked by a cam on which is also formed a gear for driving the feeding-rollers. The cam and gear are removable and may be changed for different sizes of sheet. The printed web may be slit by adjustable slitters J, and the narrow sections associated by a set of parallel diagonal turning- bars K, and then passes to the cutting-cylinders L, L<1>. The cylinders L, L' are driven at variable speed for different sizes of sheet by an arrangement of gearing by which the knife, at the time of cutting, is made to move at the same speed as the .paper. The sheets passbetween tapes 52, 57 to a collecting-cylinder M, or direct along the tapes 57 under the tapes 63, a switch N directing them. Tapes 610 run round the cylinder M on rollers 58, 59, 60, 61. Large cover sheets, each containing several covers, are fed by hand on a table O, Fig. 7, in a direction at right-angles to the run of the tapes 63 &c., and are fed by a drop roller arrangement 65, 66 on to a table P in such position that one edge of the sheet is under a drop roller 72, Fig. 3, and above the feed-roller 71. The sheet is arrested in position by a stop 70. As it is fed from the feed-table, the sheet is perforated by perforators 68, 69 for division into separate covers. The sheet is then fed by the rollers 71, 72 to the tapes 610 &c., which are driven at higher speed so as to separate the sheet along the perforated lines. The sheet then passes to the grippers of the cylinder M, and the printed sheets are collected on it, and the whole passed between the tapes 57, 63 with the cover on top. If the printed sheets are not collected on the cylinder M, the cover sheet is carried round by it and placed on them. The sheets may be arrested by a stop 75 and stapled by a stapling-device. The sheets may then, if necessary, be divided into two or more pamphlets, or have their edges trimmed, by slitters 76, and passed to a folding-cylinder 660 by which they are folded into the rollers 670, 680, and pass on to the fly 700 for delivery on to the receiving-tapes 82.