Patent GB-963727-A (GB)
Title: Method and apparatus for preparing a shoe for lasting
IPC: A43D11/00
Filed: 1962-08-29
Abstract: 963,727. Preparing a shoe for lasting. CAMPEX RESEARCH & TRADING CORPORATION. Aug. 29, 1962 [Sept. 14, 1961], No. 33171/62. Heading A3B. A method of preparing a shoe for a lasting operation which includes wiping a portion of the lasting margin of an upper and adhesively uniting it against a corresponding portion of an insole, comprises providing a last having the upper mounted thereon and the insole located on its bottom, applying steam to the portion of the upper to be wiped and depositing cement on the corresponding portion of the insole during the application of the steam. The apparatus includes a water pot 18 of heat conducting material, supplied with water from a funnel 12 and covered by an aluminium plate 23. A cement pot 26 also of heat conducting material and having a cement well 28 is mounted on a sheet 24 of asbestos located above the plate 23. Slidably mounted in a hollow post 52 screwed to the bottom of the cement pot 26 is a spindle 54 having at the lower end a lug 56 slidable in a slot 58 in the pot 52 and attached to one end of a lever 48, the other end of which is attached to the piston rod 44 of an air operated motor 42. Attached to the upper end of the spindle 54 is a cement-applying tool 60, having a cement-applying rib 62 (Fig. 4, not shown) conforming with the shape of the toe-end of a last. A cover 76 is secured to the top of the cement pot and has an opening 80 large enough to allow the passage of the tool 60. A pair of gauge plates 86 extend along the sides 82 of the opening, having upwardly extending gauge fingers 88. Heating cartridges 70, 72 are provided in the cement pot. A steam chamber 104 extending above to opening 80 (not shown) is secured to one end of a lever 100, the other end of which is secured to the piston rod 98 of a double air actuated motor 94 (Fig. 3, not shown). The steamapplicator is placed near a toe lasting machine. The funnel 12 is filled with water which enters the water pot 18 and is converted by heaters 22 to steam, which travels through a tube 122 to the channel 112, ports 114 and cavity 118 of the steam chamber. The cement tool 60 is immersed in molten themoplastic cement in the cement well 28, and the steam chamber is in its elevated position. A last 134 having an insole 136 secured to its bottom is placed on the cover 76, and an upper 132, lining 142 and box toe 144 are draped over the last and supported on the upper surface 110 of the deck 106 of the steam chamber. The motor 94 is then activated to cause the steam chamber to be lowered, the hold-down pad 120 clamping the last against support pins 68, 90 (Fig.9). Shortly before the shoe is to be removed from the steam chamber the motor 42 is activated to cause the tool 60 to rise presenting a rib of cement to the insole. The tool is then lowered and motor 94 actuated to release the shoe. A control system may be used to cause wipers of a toe lasting machine to move forwardly to wipe the lasting margin of a second shoe previously treated in the steam-applicator over the insole while the tool 60 is being raised against the insole of the first shoe. Specifications 963,722, 963,723 and 963,732 are referred to.