GB190609611A - Improvements in Folding Machinery. - Google Patents

Abstract

9611. Lake, H. H., [Cottrell & Sons Co., C. B.]. April 24. Folding paper; associating and collecting apparatus ; delivery apparatus; cutting and perforating apparatus.-In a folding- macbine, a collecting- cylinder associates the sheets in batches of two or more and passes them on to an assembling - cylinder for assembling the batches into groups, which are then folded by aid of a folding- cylinder, to form signatures. In the machine shown, the sheets to be folded &c. pass from cutting- cylinders 14, Fig. 4, past guides 20 alternately to two gripper sets 15 on the collecting-cylinder 11. A fixed cam 55, Fig. 2, opens the grippers 15 at every revolution to receive a sheet, and a movable cam 57, actuated from a cam 60 through mechanism shown in Fig. 2, opens the grippers 15 every second revolution to deliver the two associated sheets to grippers 16 on the cylinder 12, one set of these grippers being simultaneously opened by a shifting cam 68 also operated from the cam 60. The cylinder 12 has three sets cf grippers 16, and makes twothirds of a revolution to every revolution of the cylinder 11. Each gripper 16 therefore gets two batches of two sheets every one and one-third revolutions, and is then opened by a movable cam 74 operated by a cam 76 to release the four sheets, while the corresponding tucking-blade 17 co-operates with the folding- grippers 101, 102 on the cylinder 13 to fold the sheets, which are then carried by tapes 33 &c. to rollers 34, 35 and rotary slitters 53, 54 if desired. The blades 17 are rocked by levers engaging with a fixed cam 98, so as properly to meet the grippers 101, 102, which-are similarly rocked by a stationary cam, not shown in Figs. 2 and 4. They are projected forward at the proper time by spring-controlled levers actuated through a movable cam 87 held in position at the right time by a cam 93. Two small fixed cams, one being shown at 110, are used to open the folding-grippers 101, 102 at the proper time to receive and release the signatures. The various cylinders, cams, &c. are driven by suitable spur gearing.