Patent GB-1022314-A (GB)
Title: Sheet collator
IPC: B65H39/042
Filed: 1963-04-23
Abstract: 1,022,314. Sheet collators. L. MESTRE. April 23, 1963 [April 30, 1962], No. 15904/63. Heading B6H. A sheet gatherer or collator comprises a frame 20; a plurality of adjacent storage pockets 23 fixed to the frame; a drive mechanism; an ejector 29, Fig. 10, mounted in each storage pocket to engage the top sheet of a pile of sheets S, operating means 105, Fig. 1A, connecting the drive mechanism with each ejector to operate the same to project-the top sheet partially out of its storage pocket; transporting means located at the ejection end of and adjacent to the storage pockets to engage each projected sheet and complete the withdrawal of the sheet from its pocket including a main belt means 141 operatively connected with the drive mechanism, a pressure roller 142 for each storage pocket, means 157 pressing the pressure roller against the main belt means, the main belt means extending adjacent to the storage pockets at least to the last pocket, an auxiliary belt means 158, and means mounting the auxiliary belt means in contact with the main belt means at least at the last pocket and directed away from the last pocket; stop means 165, means mounting the stop means for lateral movement with respect to the belt means to and from a stop position in the path of the sheets to stop the sheets and align the same, operating means for the stop means operatively connected with the drive mechanism to project and remove the stop means to and from the stop position; gauging means including electric switches 192, 207 operatively connected with the drive mechanism to move the gauge means into contact with the sheets to gauge the thickness or number of sheets in the stop position, and switch or reject means 234 at the end of the belt means and operable by the gauge means to by-pass the sheets. Storage pocket ejector.-The ejector wheel 29 mounted above each stack, Fig. 4, is driven by a ratchet clutch 39 through a sprocket chain 33. The clutch is rotated by a segmental gear 60, Figs. 1A and 2, which receives its oscillatory movement from a reciprocating cam bar 64. Cam slots 63 in the bar engage cam followers 62 attached to each segmental gear 60 associated with each pocket 23. The slats are progressively spaced apart a distance less than the spacing of the gears 60 to begin the oscillation of each gear in sequence from the first storage pocket to the last, to provide overlapped feeding of the sheets. The reciprocating means for the cam bar 64 includes a pair of spaced cams 72, 73, Fig. 1B, operatively connected by a sprocket chain 77 to the main drive shaft 26, which oscillate a lever 78 connected to the bar 64. A pivoted clutch bar 52, Fig. 2, may take either of two positions to engage or disengage the clutch under the control of a rigid connecting wire 97. Each wire 97 for each clutch is connected to an individual lever 98, Fig. 8, forming part of control means 105, Fig. 1A for selecting from which stacks sheets are to be collated. Adjacent to a series of levers 98 is a selector cylinder means keyed to a shaft 106 rotatably carried by the end walls of a housing 100, and comprising a plurality of selector plates 107, one plate for each clutch. Operative selector notches 108 and inoperative notches 109 are spaced alternatively around the periphery of each plate 107. An adjustable selector finger 110a is located in the notch required, so that upon locating in an operative notch 108 and upon rotation of the plate 107, the finger will pivot the plate 98 by co-operating with member 101, which in turn engages the clutch of an individual ejector wheel 29 selected. The selector cylinder means is driven by a gear change mechanism and a gear ratio is set depending upon the number of books to be collated. If the storage pockets are to be loaded to collate one book only, then for one reciprocation of the cam bar 64 (i.e. one cycle of the collator) the gear ratio is set to give one revolution of the selector cylinder. If the pockets are loaded with sheets for two, three, four or more books, the gear ratio is set at 2, 3, 4 or more giving one half, a third, a quarter or less revolutions respectively of the selector cylinder for each cycle of the collator. Transporting means.-The main belt means 141, Fig. 10, comprises four spaced-apart belts which are driven by rollers 143 and 145 connected by pulley arrangements to the main drive of the machine. The auxiliary belt means similarly comprises four spaced-apart belts which co-operate with the four belts of the main belt 141 to be driven thereby. Stop means.-The stop means 165 comprises three brackets pivoted at 164, Fig. 10, which swing in between the spaces of the main and auxiliary belt means to align the collated sheets being fed between the belts. Operation of the belt means is derived from a cam 169, Fig. 13A, attached to the main drive shaft 26, through linkages 170, 173, 176, 180 and 182. Gauging means.-The gauging means, Fig. 12 (not shown), includes two switches 192, 207 connected in parallel to a light and solenoid indicated in Fig. 10. The two switches are operated respectively if two rods engage the face of the stack of collated sheets at the stop 165 and detect whether there are more or fewer than the required number of sheets collated in the stack. The rods are reciprocated with each cycle of a cam 217, Fig. 13A, through linkages 219, 220, 223, 226 and 227, a predetermined distance up to the face of the stack. Reject means.-Linkage means from the stop 165 to the reject means 234, Fig. 13B (not shown), is brought into operation if the solenoid is energized. This swings the reject means about the pivot 236 to the position shown in broken lines, Fig. 10, whereupon, a faulty stack of collated sheets is diverted to a receiver 235 instead of the normal receiving station (not illustrated). General arrangement.-The transporting means and mechanisms associated therewith are mounted on a second framework 21, which may be pivoted away from the main frame 20, as shown in Fig. 15, to give access to the ejection ends of the storage pockets 23.