Patent GB-191115826-A (GB)
Title: Improvements in Pulling-over and Toe-lasting Machines for use in the Manufacture of Boots and Shoes.
IPC: A43D13/00
Filed: 1911-07-07
Granted: 1912-02-15
Abstract: 15,826. Maschinenfabrik Moenus Akt.-Ges. Aug. 5, 1910, [Convention date]. Lasting.-A pulling-over and lasting machine, in which the toe part of an upper is pulled over by a group of pincers arranged round the toe, has means whereby the group of pincers and the last may be moved relatively in three directions, at right-angles to each other. The pincers are supported on an arm 8 suspended from a pivot 5 mounted in a supporting-body 4, which extends upwards from a pin 3 pivoted in the machine frame. The arm 8 can be moved backwards and forwards by turning a screw 6 attached to the pivot 5. The arm 8 is enlarged at its lower part, and is provided with a curved groove 9, in which a base-piece 10 for each pair of pincers is adjustably secured. A spring- pressed bolt 15 is mounted in each base-piece, and has pivoted to its head a part 14, which is pivoted at its other end to the lower jaw 13 of the pincers. The tension of the spring holding the bolt in its depressed position is adjusted by moving a pinion 19, with which gear pinions 18 forming the lower bearing-surfaces for the springs. The upper jaw of each pair of pincers is connected through links and a bell-crank lever mounted on the part 14, with blocks 26 mounted in slots on a frame 27 on the end of a rod 28 movable in the bearing for the pinion 19. When the frame 27 is raised by depressing a treadle 35, the pincers are opened. The position of the jaws may be varied by adjusting a screw stop 43 bearing on the part 14, and an adjustable amount of yielding is given by connecting the lower jaw to a spring-pressed sleeve on a bolt 42 pivoted to the part 14. The pincers may be formed with jaws, as shown in Figs. 5 and 6, to pleat the upper. In the form shown in Fig. 6, the depth of pleat is adjustable by varying the position of the block 13 forming the lower jaw. The group of pincers may be moved about the axis 5 by a screw 14, which passes through universal joints in the frame and in the arm 8. The last 49 is supported on rails 50, on which a heel-supporting body 52 may be adjusted. The rails are connected to a pair of levers 54 pivoted on a rod 59, and rest on a cross-bar 55, which is eccentrically formed at the ends for the purpose of adjustment. The crossbar is mounted on a supporting-frame 58 pivoted at 56 to the main frame 57. The centre-line of the pivot 56 lies in the vicinity of the cap seam of the upper on the last. By moving the frame 58 about its pivot, a preliminary pulling over can be given, a rack and pawl 61, 62 and springs 60 holding the frame in any position to which it is moved. An extension 66 of the frame 58 carries a presser 68, which can be adjusted on a pivot 67 by a screw 69. The pivot 67 also carries a wiper-supporting frame 73, which is adjusted by a hand-wheel 72. The wiper jaws are operated in the usual manner by a hand-lever. After the wipers have been pressed down and the pincers opened, the upper is bound in by a wire loop 80, which is secured at one end to the pivot 59 and at the other end to a disk 81 held by a pawl. The loop is tightened by turning the disk, and then the wipers are lifted. The work on the support is then turned about the pivot 59 until the sole face is upwards. A binding wire or cord is passed round the toe and secured to tacks, thus enabling the wire 80 to be released and the work removed from the machine.