Patent GB-191028825-A (GB)
Title: Improvements in or relating to Machines for Folding Paper.
Inventor: NIND FREDERICK GEORGE
IPC: B65H45/22
Filed: 1910-12-12
Granted: 1911-06-29
Abstract: 28,825. Nind. F. G., and Julyan. F. Dec. 13, 1909, [Convention date]. Delivery apparatus.- Stacking and delivery devices are described in connexion with a machine for folding letters, circulars, &c. of the kind described in Specification 374/10 which is constructed with a pivoted gate adjustable so as to direct the oncefolded sheet to a pair of flap folders which form two folds perpendicular to the original one, or to an oscillating blade folder which folds the sheet into rollers which produce a fold parallel to the original fold. The sheets are fed from a pile 40 supported by adjustable stops 42 and acted on by a spring follower plate 34 by means of a swinging roller 61, which together with a co-acting roll GO form the first fold. A gate 80 carried on an adjustable shaft 81, which is held by a spring arm in two positions, is set so as to direct the folded sheet over an horizontal table and under a former plate 91, or between rollers 215, 216, which feed the sheet to an adjustable stop 270 to be folded by a blade 220. The gate 80, when in the position shown in Fig. 2, directs the sheet under the turned-up end 96 of the former plate 91, which is carried by adjustable brackets on a shaft 93. The sides of the plate 91 are springy and press the sheet on to the table. The sides of the sheet are engaged and fed forwards by rollers 100 carried by adjustable spring arms 99 and rollers 101 driven by gearing from the operating - crank 76, which is geared to all the folding and delivery mechanism. As the sheet is forwarded, its sides are turned up by adjustable side guides 108. The rollers 100 are formed with inclined notches which are adapted to push the sheet forwards as it emerges from the rollers 100, 101, and the second folds are then formed by means of pivoted folders which are moved by cam arms on a cam-shaft 126 driven by bevel gearing from the crank 76. The side of one pivoted folder moves from its normal vertical position to an horizontal position and folds one side of the paper over the former 91. The second folder 115 moves to a similar position, and a spring 122 on this folder holds the paper down on the former. The folded sheet is then delivered by positively driven rollers 151, 154 carried by a spring - controlled locking- frame 150, which is moved to the left to grip the folded sheet and is moved by cam and link mechanism to carry the sheet forwards and feed it to an adjustable stacker comprising a base 180, side wings 181, 182, Fig. 10, and upright members 185, 186. The delivered sheets are supported in the stacker by pivoted gravitycontrolled members 200, which yield when a sheet is raised past them by a cam-operated plunger 191. As the plunger returns, the sheet is retained by the members 200. The position which these stops 200 assume is controlled by adjustable screws 205 which are adjusted so as to permit the plunger 191 to pass through on its return. The alternative folding-mechanism comprises a blade 220 on a rocking shaft 225, which is oscillated by means of an arm 230, cam 232, and a spring 231. Normally the blade 220 fold the sheet into rollers 215, 223, and a guide 235 and notched wheel 239 direct the folded sheet to a stacker consisting of an adjustable platform 258 fitted with a movable front stop 267 and a rear stop formed of spring- like fingers 265, which permit the sheets to pass down on the platform 258. This platform is attached to a cross-bar 252, which is adjusted on vertical dovetail guides 251. The stops 270 are carried by the platform 258 and are adjustable vertically relatively thereto. The rollers 238, 216 are mounted in adjustable eccentric bearings. The disk 291 is held in operative position by a leaf spring which can be depressed so as to be out of action. Either of the secondary folding devices may be thrown out of gear when the other is in gear.