Patent GB-191223657-A (GB)
Title: Improvements in or relating to Machines for Attaching the Uppers to the Soles of Boots or Shoes.
Inventor: BOULT ALFRED JULIUS
IPC: A43D69/04
Filed: 1912-10-16
Granted: 1913-10-16
Abstract: 23,657. Boult, A. J., [United Shoe Machinery Co.]. Oct. 16. Stapling.-A machine of the type described in Specification 24,456/10, for securing the uppers of boots to the soles by means of staples of fine wire, is provided with manually - controlled means that o p e r a t e means for pressing together the parts to be united, and by a further movement, after t h e parts are pressed together, render operative automatic mechanism which drives a staple formed in a previous cycle of operations of the machine and thereafter forms a second staple. The clinching- device 123, Figs. 1 and 2, which forms o n e member of the clamp for holding the work, is mounted on a slide 126, which is yieldingly connected through a rod 134 and spring 138 to one arm 130 of a rock-shaft 140, the other arm 144 of which is pivoted to a treadle link 146. The arm 144 of the rock-shaft is slotted to receive a hooked link 148 pivoted on an arm 154 of a second rock-shaft 14 and adapted to engage, after the treadle has been depressed for some distance, a pin 152 across the slot in the arm 144. The movement of the shaft 14 thus given, causes a Horton clutch on the driving- shaft 2 to be thrown in, thus starting the machine. The hook on the link 148 is knocked clear of the pin 152 immediately the machine starts, by an arm 158 on a rock-shaft 70 operated by a cam on the main shaft. The machine is thus stopped after one rotation of the main shaft. A brake 32 is mounted on the shaft 14 to assist in stopping the machine, and the disk that it engages is kept free from oil by a spring-supported pad. The wire 84, from which the staples are made, passes through a guide 90 to feed-rolls 86, 88 and thence to the staple-forming device. The length of wire fed is varied by varying the position of a block 94 in a pivoted arm 98, which carries pawls engaging ratchet teeth on a wheel secured to the feed-wheel 86. The block 94 is connected by a rod 100 with the cam-arm 76 of the rock-shaft 70. The wire passes through a guide 92 in front of an outside former 34, which slides in a guideway in the machine head. The former, which carries with it a tongue 42 projecting in front of it and engaging the work to press together the parts before each staple is driven, is made in two parts, and has a forked rearward extension, each of the branches of which is provided with rack teeth 48 engaged by teeth 50 on a segment rack. The segment rack is carried by a lever 52 fulcrumed upon a rockshaft 54, Fig. 1, and having on its other arm 56 a cam roll which engages a cam-groove in a disk 58 on the main shaft. The outside former co-operates with an inside former 60, Fig. 2, which is shouldered to retain the wire in position and is carried by a rod 62 having a slotted head 64, through which passes a pin 66 extending from an arm 68 upon the rock-shaft 70. A spring 72 holds the head 64 with the pin 66 at the top of the slot. The wire, after being fed between the staple formers, is cut by a cutter 104 attached to the outside former. Chips of wire &c. escape through slots 166. The staple is driven by a driver operated from a cam 108 on the main shaft. The driver, which has a vertical rib 120, Fig. 9, guided by a groove in the outside former, is preferably formed with two semicircular notches 110 adapted to be slipped over the shanks of two screws 112, by which a clamp member 114 is held against the driver slide 118. The driver can thus be quickly detached. In operation, the work is first clamped between the clincher 123 and the machine nose 122, and then, after the machine has been actuated by further depression of the treadle, the inside former is lifted and the staple, which had been formed in the previous cycle of operations of the machine, driven; the cams then operate to feed the wire and form another staple.