Patent GB-510085-A (GB)
Title: Improvements in or relating to methods of and means for assembling parts of shoes
IPC: A43D11/00
Filed: 1938-01-26
Abstract: 510,085. Assembling shoe parts. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Jan. 26, 1938, No. 2464. Addition to 484,484. [Class 17 (i)] Relates to macnines for assembling the heel portion of a lined upper and the appropriate counter in determinate relation, of the kind described in the parent Specification, but of simpler construction. An upstanding plate supports the lined upper by the top seam between the upper and lining, and supports the counter. The lining is first turned upwardly, and is wiped into contact with the counter, which has previously been treated with adhesive on its inner side only, from the top edge to the bottom. An inner form causes the lining to embrace the wiper in its operative movement. Fastening-inserting means secure the assembled parts together, the fastenings being clenched against the wiper. The machine comprises a vertically sliding member 16 carrying a forwardly and rearwardly sliding member 22 urged rearwardly by a spring 84 to a limit determined by a roll 92 engaging a fixed cam 90. The slide 22 carries a pivot 25 for a pair of links 26 pivoted to arms 64, themselves pivoted to the slide 16, the connections 30 of the links and arms carrying uprights integral with a pair of curved wiper members 32 pivoted together at their rearward ends. The slide 16 is reciprocated by a roll at the end of an arm 68 engaging a groove 74 in the slide, and operated by a treadle 78. The work support comprises a thin plate 34 held by screws in a groove in a fixed table 36. A heel-part embracing member 52 is connected by links 110 to a cross-head moved forwardly and rearwardly by a bellcrank lever 104 actuated by a cam 114 formed on the slide 16, the cam contacting a roll on the upright arm of the lever. The horizontal arm is resiliently connected to a bell-crank lever 122 which actuates a slide carrying an internal form 54. The arm 68 carries a spring plunger 98 adapted to co-operate with a roll 100 on the slide 22. A roll 156 on the other end of the arm 68 co-operates with a lever 148 actuating a pair of vertical plungers 146 secured to drivers of stapling mechanism of ordinary construction, hollows being formed in the wiper arms 32 for clenching the staples driven. In operation, a counter adhesively treated on its inside is positioned with its flange in a shallow recess 48 in the table 36, and the corresponding upper is positioned over the plate 34, the lining being turned upwardly over the form 54. The treadle 78 is then depressed so that the wiper lays the lining smoothly against the inside of the counter. The curved portion of the cam 90 causes the wiper to follow the curved contour of the counter, since the pivots 30 are urged towards each other as the slide 22 moves forwardly, and vice versa. Meanwhile, the cam 114 has moved the members 52, 54 to operative position. When the wiper has reached the bottom of the counter, it is moved inwardly over the flange by the spring plunger 98 engaging the roll 100. Finally, staples are driven through counter and lining at the forward ends of the counter flange, when the treadle may be released and the work removed.