Patent GB-190811222-A (GB)
Title: Improvements in or relating to Machines for Pulling-over and Lasting the Uppers of Boots and Shoes.
Inventor: MCFEELY RONALD FRANCIS
Filed: 1907-05-25
Granted: 1909-08-23
Abstract: 11,222. McFeely, R. F. May 25, 1907, [date applied for under Section 91 of Patents &c. Act, 1907]. Lasting.- Pulliug-over machines of the type described in Specification No. 7005, A.D. 1900, are provided with means for automatically lasting the upper. The machine comprises the usual bottom rest 2, Fig. 2, heel rest 4, toe grippers 6, and multiple side grippers 8, 10, Figs. 2 and 6, which are actuated in the manner described in the prior Specification. These grippers have provisions for adjusting the upper transversely of the last, and for adjusting the tip line, and they are pivotally connected to their actuating-levers for movement lengthwise of the last. To enable the side grippers to be moved for adjusting the upper longitudinally about the last, their casings 20, 22, Fig. 6, are connected by universal joints to toothed bars 24, 25, the former of which extends under, and is engaged by a pinion on the end of, a shaft 26, while the latter extends over, and is engaged by a toothed sleeve on, this shaft. Rotation of the shaft causes the grippers to move together in opposite directions to effect the desired adjustment of the upper. The grippers are mounted to swing inwards to carry the stretched upper over the last, and are pressed inwards by springs, that for the toe gripper being shown at 30, Fig. 2. The grippers, in their gripping position, are held spread apart by a slide 32, the end of which rests against the toe gripper while its inclined faces engage the side grippers. The slide is held in its outer position by a lug 34 on a toothed slide 35 in engagement with a shaft 36. This shaft engages a rack 38, Fig. 8, on a lever 40, which is actuated from a cam block 44 on the main shaft 12. The operation of the machine is in two steps, as in the prior machine, the cam block being grooved so that the slide 32 is retracted when the machine is started a second time. The machine is fitted with last-supports 45, Fig. 2, which are carried by horizontally-swinging bellcranks 46 gearing with racks yieldingly connected to a block 50, which is actuated from the cam block 44. These supports move into operative position as the slide 32 is retracted. The levers 46 carry sliding side-wipers 56 of known construction, adapted to clamp the upper against the edge of the last and then to force it over and hold it down against the shoe bottom. The tack carrying and driving mechanisms for the side-wipers are carried by arms 60, Figs. 2 and 6, which are actuated by segmental gearing from the slide 35 so that they follow closely the inward movement of the side grippers. The slide 35 also actuates an arm 75, Figs. 2, 6, and 14, which carries the mechanism for lasting the toe. This mechanism comprises spring- pressed corner-wipers 80, each of which is pivotally connected to a slide 84 slidably carried by the arm 75. The slide 84 carries a stop 85, which is located between the wipers 80 and in a position to contact with the end of the shoe. The rear ends of the wipers, or rollers 81 carried by them, are adapted to engage oppositely-inclined faces on a wedge-block 86, which is yieldingly connected to the arm 75. Directly the stop 85 contacts with the shoe, the wipers 80 are swung inwards over the last bottom, causing the upper to be forced transversely over the last, and without any tendency to move lengthwise. Between and immediately above the wipers 80 is a tack-holder 92, which forms an intermediate or end-wiper ; it is arranged to contact with the upper after the corner-wipers, so that the upper material from the end of the shoe will be folded over the material from the corners of the shoe. The corner-wipers come into engagement with tLe upper before the release of the toe grippers, and both they and the side-wipers are preferably provided with inclined faces to enable them to ride over lasts supported at slightly different heights. Preferably the arrangement is such that these inclined faces clamp the upper against the last, and then their movement is arrested and their actuating-mechanisms put under tension. Then, when the grippers have released the upper, the supports 45 yield to allow the wipers to move forwards quickly over the shoe bottom. The endwiper 92 is arranged to contain three tacks, which are driven by a multiple driver 99. Fig. 16 shows a boot as it leaves the machine. Specification No. 14,154, A.D. 1909, is referred to.