Usm Corporation

Dennis S Hall

Ewen R Cameron

Graham J Mansfield

In a thermo-cementing and folding machine, a gear pump operates to supply adhesive at a rate which is dependent upon the speed of rotation of a main drive shaft, by which workpiece feeding means of the machine is driven. The machine has also a facility for varying the rate of feed of a workpiece by the workpiece feeding means without varying the speed of rotation of the main drive shaft. The ratio of the rotational speed of the shaft to the operating rate of the pump is varied in response to variation of the workpiece feed rate. This arrangement is achieved by computer control, the gear pump being driven by a stepping motor for this purpose. In addition, at the end of each work cycle, use of a stepping motor facilitates 'suck back' of adhesive, and a 'fast forward' adhesive upon initiation of the next work cycle.

Automatically controlled thermo-cementing and folding machine

Equipment for laminating for a shoe upper and a lining through the use of an interposed adhesive layer including a form having portions of different radius of curvatures and two operating side surfaces including a heater and two pressers which sequentially engage the workpiece and shape it to correspond with the form.

Apparatus for use in laminating a workpiece

Mechanism is provided whereby, at the option of an operator, a cementing machine may conveniently be converted from an edge folding arrangement to an edge binding arrangement, or vice versa. Instead of requiring services of a mechanic for the purpose, the operator simply mounts the appropriate finger and gauge block and positions a locking lever for the desired mode of operation. The invention is particularly suitable for operating on uppers of shoes but its utility is applicable to other flexible sheet workpieces.

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Leicester, United Kingdom

Dennis S Hall