Patent GB-307711-A (GB)
Title: Improvements in mechanism for feeding and associating sheets with the product of a printing press
IPC: B41F13/68
Filed: 1927-09-12
Abstract: 307,711. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). Sept. 12, 1927. Delivery apparatus; cutting-apparatus; associating-apparatus.-In a machine for feeding sheets, such as covers or inserts, for association with the products of a printing-press, the sheets are cut from multiple sheets and the delivery is timed so that they can be associated with three products of the press collected together. Means may also be provided for enabling the sheets to be associated with single products of the press or with two collected products. The press products are cut into single sheets by co-operating cylinders 1. 2, Fig. 1, and are fed to a collecting-cylinder 7 to which the covers or inserts are also fed by tapes 10, 15, and cylinders 28, 31, 56, 57, 58, and 8. The sheets are fed in the form of multiplelength sheets by the tapes 10, 15 to stops 27 where they are aligned, and then to the cutting and detaining cylinders 28, 31. The cylinder 28 is provided with stripper-fingers 36, 37, Fig. 3, detaining-pins 34, and a cutting knife 30 which co-operates with a part 33 on the cylinder 31. The circumference of the cylinder 28 is twice the length of the single sheets. The sheets are fed in the form of two-length sheets and are separated by the knife 34, the second single sheet being carried round by the pins 34, so that a distance of two single sheet-lengths separates the two parts of the multiple sheet when they are finally fed forward. In a modification, Fig. 10, cylinders 38, 47 replace the cylinders 28, 31. The circumference of the cylinder 38 is three times the length of the single sheets, and the cylinder is provided with two cutting-knives 40, 41, one set of sheetdetaining pins 42, and three sets of stripperfingers 44, 45, 46. The cylinder 47 has a circumference twice the length of a single sheet, and is provided with two members 48, 49 co-operating with the knives, two sets of stripper fingers 53, 54, and one set of sheet-detaining pins 51. For use in associating sheets with three products of the press, the pins 42 are rendered inoperative and the cylinder 47 acts as the detaining-cylinder. For associating sheets with two products of the press, the pins 51 are rendered inoperative, and the cylinder 38 acts to detain the sheets. The sheets are fed in the form of three single-length sheets, which are separated by the knives 40, 41, and the middle sheet is detained by the pins 42 for one revolution of the cylinder so that a gap of a single sheet-length exists between the sheets as they are fed to the cylinder 7. If necessary, the sheet-detaining pins may be provided on a cylinder other than the cutting-cylinder, or the sheets may be detained by fingers. In a further modification for enabling the covers or inserts to be associated also with single products of the press, an automatic sheet-feeder is employed, which normally feeds the sheets more rapidly than the press but leaves a gap between the delivery of any two sheets, the gap being employed for enabling the sheets to be delivered in synchronism with the products of the press. The feeder delivers the sheets to tapes 77, Fig. 20, travelling faster than the press, the tapes aligning the sheets against stops 82 and finally feeding them to tapes 83 travelling at the same speed as the press. The tapes 83 feed the sheets to the cylinder 38 provided with an extra knife 40<1> which can be rendered inoperative.