Patent GB-1057260-A (GB)
Title: Improvements in or relating to machines suitable for use in the manufacture of shoes
IPC: A43D21/12
Filed: 1963-11-20
Abstract: 1,057,260. Boots &c. BRITISH UNITED SHOE MACHINERY CO. Nov. 20, 1963 [Nov. 21, 1962], No. 45725/63. Heading A3B. A machine suitable for use in the manufacture of shoes has a work support having means for mounting a form e.g. a last, the work support being movable between a loading station and an operating station and having means for locking the work support in the loading station, the locking means being released by movement of the form e.g. by tilting the last. As described the machine is an assembling machine having a tack driving mechanism as described in Specification 208,593 and having a work support 22 which can be moved from a loading station as shown in Fig. 1 to an operating station as shown in Fig. 5 (not shown). The work support 22 supports a form 20 which can be moved from a loading position as shown in Fig. 1, in which the form is tilted forward, to an operating position as shown in Fig. 5 (not shown) in which the axis of the thimble hole is parallel to the work support. The work support can be locked at both its loading station and at its operating station and the form can be locked in its operating position when the work support is at its operating station. The work support comprises an arm 24 pivoted to the machine frame at 26 and carrying a resiliently mounted tube 32 having a block 42 at its upper end. A head 52 is pivoted to the block 42 and carries a form 20. At its loading station forward movement of the work support 22 is prevented by a link 94 which passes through an aperture in the machine frame 10 and which has at its opposite end a nut which engages the machine frame, downward movement is prevented by a flange 90 on the tube 32 engaging a plate 88 mounted on an arm 82 fixed to the machine frame and rearward movement is prevented by a latch arm 96 on the work support engaging a latch tooth 102 on the arm 82. The latch arm 96 is connected by a bar 104 to the head 52 so that the latch is disengaged on tilting the form from its loading position to its operating position. During rearward movement of the work support the form is moved heightwise to the correct position by the cam action of a plate 76 which also holds the upper (including stiffeners and lining) in position on the form. The form is locked against tilting movement in the operating station by a head 110 (Fig. 5, not shown) which is moved heightwise to lock the form by a piston and cylinder 122. The work support is locked in the operating station by a hook 70 engaging a roll 72. The operation of the hook also causes a latch member 81 (Fig. 1) in the arm 24 to hold the work supporting assembly against downward movement in the operating station. In operation the operator places the upper and insole in the correct position on the form, tilts the form upwards and moves the work support rearwards. During this rearward movement the work support operates a valve 134 to operate a piston and cylinder 122 to lock the form in its operating position and operates a linkage- (not shown) to start the power cycle of the machine. The power cycle is as described in Specification 208,593.