Boot and shoe making – Upper machines – Loose upper shaping
Patent
1984-06-14
1986-09-09
Schroeder, Werner H.
Boot and shoe making
Upper machines
Loose upper shaping
12 55, 112308, A43D 1100, D05B 2700
Patent
active
046100415
ABSTRACT:
A folding machine has workpiece sensing means including an emitter by which an "outside" corner in the workpiece edge approaching the operating locality of the machine can be sensed, such sensing causing the feed length by which the workpiece is advanced step-by-step through the operating locality to be reduced; this conventionally causes pleating in the folded over edge portion. In addition, delay means is provided by which, after the emitter has been re-covered by the workpiece, the feed length reduction continues for a given number of further feed steps.
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Cameron Ewen R.
Wolloff Frank H.
Yardley Robert
Enhart Corporation
Meyers Steven N.
Schroeder Werner H.
White William F.
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