Patent GB-190427536-A (GB)
Title: Improvements in and relating to Machines for the Manufacture of Folded Sheets of Paper or similar Material suitable for Toilet Purposes
Inventor: ALCOCK WALTER JAMES
Filed: 1904-12-16
Granted: 1905-03-30
Abstract: 27,536. Alcock, W. J., [Wheeler, S.]. Dec. 16. Folding p a p e r.- Relates to a machine for cutting, folding, and interfolding single or superposed sheets of toilet paper, and delivering the product to a table, from which it may be removed at intervals. The paper is fed in the form of a web from a reel 4, Fig. 1, by rollers 12, 12<a>, 13, 14, 17, driven by a shaft 9 and bevel gearing from the driving-shaft 5. The web-feeding rollers are supported in a removable frame 15, and may be replaced by any other type of feed mechanism with superposing-devices as desired. After leaving the feeding-rollers, the paper is cut by an adjustable cutter 21 on a bar 20 and a movable cutter 22 on a rock-shaft 23, operated by an arm 25 thereon engaging a cam 24 on the shaft 9. The sheets of paper then pass into an inclined shoot 18, from which they are delivered, to the folding - mechanism shown in Fig. 6. In a bearing 34, Fig. 1, is a shaft 33, driven by bevel gearing from the shaft 5 and carrying a crank disc 35 with an adjustable crank-pin 36, which slides in a horizontal slot in a crosshead secured to the lower ends of vertical bars 39. Each vertical bar 39 is furnished with two sliding blocks 41, 42, Fig. 6, supporting, respectively, two movable horizontal bars 44, carrying oppositely-directed folding-blades 45, normally retained slightly deflected from the vertical by helical springs encircling trunnions 46 at each end of bars 44. The bars 44 are provided with arms 50 carrying at their extreme ends studs 51 which engage adjustable brackets 52 and pivoted arms 56 thereon, and thus cause the folding- blades to assume a vertical position. The sliding blocks 41, 42 are provided with pistons 68, adapted to engage air cylinders 67 having small orifices 69 formed in collars 66 on the bars 39, by which means the necessary motion is communicated to the folders. The blocks 41, 42 are also furnished with studs 60 which pass through slots 61 in vertical guides 62 and engage the slotted ends of pivoted arms 64, the opposite ends of which are connected by a spring 65. A pivoted hook 57, operated on by a spring 58, which tends to deflect it on either side of its central point according to its position, is arranged so that its two extremities respectively engage the blocks 41, 42 as they are alternately raised- and lowered. As the paper leaves the shoot 18, it passes behind the lower blade 45, which is in its inclined position and is being raised by the collar 67. On reaching its highest position, the blade is forced into its vertical position, pressing the paper against the block 30 in the delivery shoot 26, and the slide 42 is held in the elevated position by the hook 57. The upper blade then descends and presses the second flap against the lower blade, which i= then withdrawn by the action of the spring 65, and the third flap springs outwards into the recess 19 in the shoot 18, Fig. 6, allowing the next sheet to be delivered into the last fold of the preceding one. As the folded sheets are produced, they are delivered into an adjustably-supported tray 26 against a tightly-fitting gauge 30 consisting of two blocks separated by a helical spring.