19,433. Fenby, E. B. Sept. 16. Folding - instruments.- In a machine for folding the edges of collar, cuff and like blanks, the folders, the parts of the collapsible templet or die, and the heated presserbed are operated by toggle mechanism. The variable movements of the end folders and the end die parts are obtained from quadrants and the positions of the slide blocks in the quadrants are determined by holes in the folders and die plates. The front and back die plates 108, 109, Fig. 15, are held by carriers which are secured to two plates 67, 68 slidably mounted on the die head. These plates are operated by two bars 62, 63 on either side of a central draw-bar 61, to which they are connected by several toggle links. When the bar 61 is moved longitudinally the bars 62, 63 and the die plates 108, 109 are moved apart. The two central die carriers which are secured by screws to the blocks 79, 80 are fixed to the plates 67,68. The others are slidably mounted in pairs so that they may be moved to accommodate different sizes of die plates. The end die plates 110, 111, 112, 113 are held by carriers 82, Fig. 4, which are slidably mounted on the carriers for the front and back die plates, so that they participate in their lateral motion. In addition, they receive longitudinal motion, so that they leave the corners of the folded blank in a diagonal direction, through links 84 and quadrants 86 by which they are connected to the opposite carriers. When the front and back die plates approach, the carriers 82 are moved inwards, and, when they separate the carriers 83 are moved outwards. The longitudinal movements are varied for different sizes of dies by altering the positions of the joint pins in the quadrants as determined by holes in the die plates. The front and back die plates are locked in their extended positions by blocks 99 which are moved into and out of operative position by a cam-actuated lever 91, Fig. 1. The end die plates are locked in position by blocks 101 which in their releasing-movements are caused to withdraw horizontally a certain distance and then move vertically. The front and back folders are operated by bars 20 and 21 connected by toggle links with draw-bars 22. The end folders 12, Fig. 10, are carried by parallel levers 36 pivoted to blocks 37 on the bed-plate and are operated by direct connexion, or by the toggle connexion 41, 42, with the back folder 16. The blocks 37 'are mounted in slides and can be positioned in accordance with the size of the dies. The presserbed 14 is pressed upwards by bars 115, 116 connected by toggle links to the draw-bars 117. The bars 117 are operated by a compound lever comprising a main lever arm and an auxiliary arm pivoted to it. The cam-bowl is mounted on the auxiliary arm and a spring is interposed between it and the end of the main lever. The machine is driven through a suitable clutch which is brought into operation by a treadle and is thrown out after one complete cycle of movements by a trip on the main-wheel of the machine.