Patent GB-144716-A (GB)
Title: Improvements in or relating to machines for operating upon heels
IPC: A43D83/00
Filed: 1920-06-11
Abstract: 144,716. United Shoe Machinery Corporation, (Assignees of Lund, T.). June 12, 1919, [Convention date]. Breasting; heels, machines for. - A heel-compressing machine of the type described in Specification 11454/11 is provided with additional mechanism for grasping the ejected heel in the position in which it is left by the moulds receding from it and presenting it in position for another operation which, as described, is breasting. As shown, the vertically reciprocating head. 2 is connected by link and lever mechanism 82, 62,46, Fig. 1, with arms 36, Fig. 6, pivoted to slides 34. As the head rises 'to compress the heel, these slides move along grooves 32, open the fingers 36 and carry them past the heel. As the head descends and releases the heel, the fingers close and then return, lugs 50 thereon engaging the heel breast and carrying it to one of four pairs of fingers 110, Fig. 7, pivoted at 108, geared together by teeth 112 and at this time opened by a cam 51 mounted on the head 2 and engaging a projection 206. on one of the fingers. The fingers 110 are mounted on a spider 106 which is turned through 90 degrees for each rise of the head 2. Each pair of fingers 110 has a gauge 120 for the rear of the heel, the four gauges being simultaneously adjusted bv inclined slots 119 in a plate. 113 engaging pins 119* on the gauges, the plate being turned by a handle 115 and the gauges locked in adjusted position by nuts 122. The heel is pressed down on to a fixed table 52 below the fingers 110 by a vertically sliding member 168. Fig. 3, resiliently moved by a link 175 pivoted to the head 2. The spider is then turned 90 degrees, and the heel thus positioned above an interchangeable plate 160, Fig. 7, having a curve corresponding to that of the breasting knife so that a shear cut is obtained. An abutment screw 167, Fig. 3, engages the lower face of the plate 160 to take the thrust of the knife. Before the breasting-knife descends, the heel is positioned by a striker 180 on a lever 182. The striker is urged toward the heel by a spring 186 and normally kept out of action by a link 188 engaging a pin 192, Fig. 4, on the lever. The link 188 is connected by a link 198 with a parallel link 194, the pivots 190, 196 having spring washers to provide friction, and the striker is allowed to move as required and returned by a roll 200 moving with the head 2 and engaging the links 188, 194 and cams 202, 204 on the lever 182. The breasting-knife is reciprocated by a crank 148, Fig. 3, and is preceded bv a clamp 170 having a downturned end engaging the heel near the breast, the clamp being frictionally mounted on the knifecarrier. The knife descends twice, making a roughing and a finishing cut, between consecutive movements of the spider 106. When the heel reaches a cut-away part of the table 52 the fingers 110 are opened to allow the heel to drop by a member 208, Fig. 7, on a resiliently-mounted slide 212. To allow the projection 206 to pass should the jamming of a too thick heel necessitate turning the machine and therefore the spider 106 backwards, the member 208 is rotatable on a pin carried by the slide 212 and is retained in normal position by a spring 228.