Patent GB-190822561-A (GB)
Title: Improvements in Sole-pressing or Moulding Machines for use in the Manufacture of Boots and Shoes.
Inventor: BOULT ALFRED JULIUS
Filed: 1908-10-23
Granted: 1909-12-23
Abstract: 22,561. Boult, A. J., [United Shoe Machinery Co.]. Oct. 23. Moulding; presses; soles.-A sole-pressing or moulding machine is provided with a heel-gauge mounted upon a support which is fixed at a constant level relative to one of the forms. The heel-gauge is capable of adjustment to different levels, for use with forms of different heights. The gauge may also be adjusted longitudinally of the form, by means operated from the front of the machine and provided with size-indicating and locking devices. A sole-gripper is also mounted upon the heel gauge support, and the two devices with their support are arranged so that either the form or the support may be independently removed. The invention is described as applied to a duplex sole - moulding machine in which each lower mould 5 has reciprocating motions in vertical and horizontal planes with relation to its upper form 1. The cross-head 7, to which the vertical movement is imparted, carries an horizontally reciprocating slide 7, on which are mounted the lower mould 5 and the heel-gauge carrier 19. The front of the carrier 19 projects into a slot opening on the face of the heel portion of the form 5, and co-operates with the usual pin 24 to hold the form. The back of the carrier 19 engages a slot in a plate 20 on the slide 6, and is held in place by means of a pin 21 in the slide 6 and a wedge-cam 23 on the plate 20. By this construction, either the carrier 19 with its devices or the form 5 may be independently removed. The heelgauge 34 is pivoted on a block 36 so as to enable its arms to be adjusted to different levels. The block 36 carries a spring pin 39, which engages notches 40 on a projection from the heel-gauge, to hold the heel-gauge in any position of vertical adjustment ; simple pressure upon the heel-gauge by the operator is sufficient to effect this. The block 36 is mounted upon a longitudinal rod 37 on the carrier 19, to permit of adjustment for different sizes of soles. To operate this adjustment from the front of the machine, a projection 42 from the block 36 detachably engages a rod 41 arranged mainly under the slide 6. The front end of the rod 41 has a rack which is engaged by a pinion 44 on the spindle of an adjusting-knob 50 situated upon the surface of the slide 6 at the front of the machine. This knob is normally held against movement by means of a locking-arm 46 on the spindle, which, by the aid of a spring, co-operates with locking-teeth 47 on a plate secured to the underside of the slide 6. The knob 50 carries a pointer which indicates on a loose scale-plate 52 the adjustment of the heel-gauge. The scale-plate may be set and locked against rotation by a locking device 53. The sole - gripper comprises movable jaws 26, pivoted between ears on the rear end of the carrier, and co-operating with the head of a pin 25 in the forward end of the carrier. The jaw 26 is actuated by a roll 27, on the end of a bell-crank, which travels along the jaw as the slide 6 reciprocates. The bell - crank is pivoted to a bracket 29 secured to the cross-head 7. A spring upon the lower arm 28 of the bell-crank produces a yielding grip upon the stock by pressing the roll downwards. When the slide 6 is in position to aline the forms 1 and 5, the roll 27 is at the forward end of the jaw 26 and holds the gripper closed. On the outward movement of the slide, the roll travels back along the jaw until it passes to the opposite side of the jaw pivot. The gripper then opens. Positive opening of the jaw is secured by an adjustable stop 32 in the path of the roll. To facilitate the removal of the gripper and heelgauge, the bell-crank has a hand-lever 33, by which the roll 27 may be lifted against the action of the spring referred to.