Patent GB-191108521-A (GB)
Title: Improvements in or relating to Machines for use in the Manufacture of Boots and Shoes for Assembling and Lasting and like Operations.
Inventor: ASHTON ORRELL
IPC: A43D75/00
Filed: 1911-04-05
Granted: 1912-04-04
Abstract: 8521. Ashton, O. April 6, 1910, [Convention date]. Lasting; assembling parts.-Fig. 1 shows a general view of a machine for use in completing the preparation of a shoe for sewing after it has been treated by such a machine as the combined pulling-over and lasting machine described in Specification 29,362/09, and also for use in assembling the shoe for lasting. It consists essentially of a stationary tacker, which may be used in co-operation with a gripper for lasting, or, by moving the gripper into an inoperative position, may be used to assemble the shoe. The gripper comprises sliding members 30, 40 with jaws at their free ends, mounted in a carrier 20, which is also furnished with guides 62 for a yieldingly-mounted sole-rest 60 shaped at its front end to engage the channel or lip of the sole or insole of the work. The grippers are actuated through connexions 45, 46 from a cam shaft 5, which is driven by a single-revolution clutch of ordinary construction. Fig. 1 shows the relative positions of the various parts of the machine when the shoe is first presented to it. On depressing a starting-treadle, the gripper member 40 recedes until the gripper is closed, and then the two gripper members 30, 40 and the sole-rest move together towards the left, taking the shoe with them, until the sole-rest is stopped by the engagement of an abutment 61 with one of the bearings 62, Fig. 4. Continued movement of the gripper then stretches the upper well over the last, and also exposes the stationary nozzle 80 of the tacker, which is of ordinary construction; this tacker is then actuated from the cam shaft 5 to drive a tack into the shoe. A pusher 70, Fig. 1, also actuated from the cam shaft, causes the solerest to move the shoe back again ahead of the lower gripper member, to prevent the member from stripping the shoe of the tacks just inserted. Both the gripper members and the solerest are slotted to enable tacks to be driven through them, if desired. When the gripper is not required, a sliding latch pin 25 is released to enable the gripper to be moved into the position shown in dotted lines in Fig. 1. The machine may then be used to prepare a shoe for lasting by tacking its insole &c. to the last, or by inserting one or more tacks into the rear of the shoe to secure the counter &c. In order that these tacks shall only be partly inserted, a gauge is provided in the form of an angular plate 100, Fig. 8, which is normally inoperative, but is adapted to be swung into the position shown beneath the tacker, where a stop 102 on the free end of the gauge determines the distance of the work from the nozzle 80. To obtain greater exposure of the driven tack, a spacing-block 110 is adapted to slide along the front arm of the gauge, as shown in Fig. 9. This is particularly intended for inserting a tack at the rear end of the heel seat; and to facilitate the bending down of the heel stiffener into position to receive this tack, a wiper 124 is adjustably secured to the block 110. This wiper also serves as a back gauge for positioning the heel seat tack outside the channel, when preparing for sewing shoes that are to be sewn all the way round.