B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/74
B31B 1/90 (2006.01) B65B 29/04 (2006.01)
Patent
CA 1129698
ABSTRACT OF THE DISCLOSURE Apparatus for the application of a suspension thread of natural fibers having a label attached to it to a strip of filter paper in a machine for the automatic production of filter bags of an infusion product operating in conjunction with a label feeding device. The filter paper strip is coated with a thin layer of thermoplastic material on one of its faces and moves in front of the apparatus connected to the machine which is provided with means for feeding a continuous thread to the said apparatus. This apparatus, in turns, is provided with a head or wheel with radial arms which turns intermittently. Also provided are means for the application of equidistant labels to the thread before the turning head or wheel, so that the thread, set in motion by the same head or wheel carrying a label on each of its arms, crosses all operation stations. Here the thread is first cut before the label, then folded up parallel to itself, and finally connected to the strip for local impregnation on the surface of the strip with the thermoplastic material diffusing by heating effect through the filter paper.
347110
I.m.a. - Industria Macchine Automatiche - S.p.a.
Marks & Clerk
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