Patent GB-191008281-A (GB)
Title: Improvements in or relating to Machines for Compressing Heel Lifts and other Blanks.
Inventor: LUND THOMAS
IPC: A43D83/00
Filed: 1910-04-06
Granted: 1911-04-06
Abstract: 8281. Lund, T. April 7, 1909, [Convention date]. Heels, machines for. -A machine for compressing heel lifts and other blanks, having side dies carried by a reciprocating head, is provided with a breast die which moves with the head during part of its movement but is held stationary during another part to permit a blank to be fed beneath it to a position between the dies. The faces of the side dies are arranged to bevel a portion of the edge of the blank, and each die is provided with bevelled portions of different widths, any one of. which may be employed in compressing a blank. The machine comprises a head 2, which is reciprocated, for example, by means as described in Specification 22,839/02. The side dies 8 are carried by slides 6 mounted upon the upper surface of the head and moved towards each other in the manner' described in the above-named Specification. Each of the slides 6 forms a bearing for a slide 12, which slides co-operate in carrying a block 16 by means of T-shaped members 14. Oblique surfaces 18 on the slides 12 cause the block 16 to move inwards upon the blank simultaneously with the side dies. The breast die 20 is carried by the block 16 by means of a vertical dovetail and a spring-pressed pin 22 engaging a socket in the breast die. To obtain the desired movement of the breast die relatively to the head 2, the slides 12 are connected to depending rods 92, which pass through holes in a fixed part of the machine. In the lowest position of the head, these are supported by adjustable collars 94 resting upon the said fixed part so as to afford a clearance between the die and the face-plate 58 for the feeding of the blank. During the upward movement of the head, the rods 92 are restrained by springs 100 coacting with the machine frame, the breast die being carried upwards by the engagement of the face-plate 58 and the block 16. The side dies 8 engage their slides 6 on two sides at right-angles, and are detachably held in position by angular members 106 recessed into each slide and a pin 108 passing through a hole in this member and in the die. The blank-receiving space 8<*> is constituted bv a vertical curved surface and one or other of two bevelled surfaces 102, 104 of different width. To change the diameter of this space, the dies may be turned over and interchanged, and further variation may be obtained by providing additional openings in the rear portions of the dies. A block 24 having a sliding engagement with the block 16 is provided with yielding pins 26 bearing upon the upper surfaces of the side dies; a presser 32 is carried by means of flanges thereon which slide into grooves in the block 24, being locked by a spring pin 36. A screw 28 in the breast-die carrier 16 limits upward movement of the presser-carrying blocks. The presser 32 is actuated by contact with a stationary abutment 38, which may be adjusted in height by a wedge 42 and screw 46, and is secured in alinement by shoulders 50 engaging between lugs 48 on the base 40, which is secured to the machine frame. The face-plate 58, which forms the bottom of the mould cavity and is corrugated to corrugate the inner portion of the lower face of the blank, is carried by a bed-plate 56. This bed-plate is carried by a bracket 64 secured to the head 2, and is reciprocated to place the blank between the dies by a lever 60 pivoted to the bracket and actuated by a fixed roller 68. The roller works in a cam groove 66 in the lever 60, which is shaped so as to advance the bed-plate beyond its operative position and then to draw it back slightly. The connexion between the lever 60 and the bed-plate 56 is a link engaging a rotatable member in the bedplate through the medium of a spring 72. An adjustable stop 76 engaging a stop-face 78 on the bracket limits the rearward motion of the bed-plate. The blank is placed in front of a finger 80, adapted to engage its rear edge, which is pivoted at 82 to the bed-plate and spring supported at its blank-engaging end, a screw 86 serving to adjust the amount of its projection above the bed-plate. Gauges 88 rest loosely upon the bed-plate on either side of the blank to guide it as it is fed forward. They are supported at their rear ends by an oppositelythreaded screw 90, journaled in the bracket 64, by rotating which the gauges may be adjusted. In the machine described, any fin formed on the lower edges of the compresesd blank will lie in the plane of the lower face of the lift and will not project vertically therefrom, thus facilitating attachment to the heel and improving the finished heel.