Machine for producing separable fastening elements

Claim 1

A MACHINE FOR PRODUCING YIELDING STRIPS IN WHICH ARE ANCHORED THREAD-LIKE LOOP-SHAPED ELEMENTS, COMPRISING A BODY, A FIRST ENDLESS CHAIN FITTED IN SAID BODY AND INCLUDING A NUMBER OF PARALLEL TRANSVERSE SHAPING BARS, A SECOND ENDLESS CHAIN INCLUDING A NUMBER OF PARALLEL TRANSVERSE COUNTER-BARS AND A STRAND OF WHICH EXTENDS IN SAID BODY IN PARALLELISM WITH A STRAND OF THE FIRST CHAIN, MEANS DRIVING THE TWO CHAINS TO MAKE SAID PARALLEL STRANDS PROGRESS LONGITUDINALLY, THE INTERVALS SPACING THE SHAPING BARS AND THE COUNTER-BARS BEING SUBSTANTIALLY EQUAL TO THE BREADTH OF THE COUNTER-BARS AND OF THE SHAPING BARS RESPECTIVELY AND FACING SAID COUNTER-BARS AND SHAPING BARS RESPECTIVELY, MEANS FOR GUIDING A SHEET OF THREADS BETWEEN THE TWO CHAINS TO LAY IT OVER THE ALTERNATING SURFACES OF THE SHAPING BARS AND COUNTER-BARS, MEANS URGING IN SUCCESSION THE COUNTER-BARS AND THE SECTIONS OF THE SHEET OF THREADS EXTENDING OVER SAID COUTER-BARS INTO THE INTERVALS BETWEEN THE COOPERATING SHAPING BARS, MEANS ADAPTED TO LAY, OVER THE CONTINUOUS SURFACE FORMED BY THE ALTERNATING SEQUENCE OF SURFACES OF BARS AND OF COUNTER-BARS CARRYING CORRESPONDING SECTIONS OF THE SHEET OF THREADS, A LAYER OF A VISCOUS YIELDING PLASTIC MATERIAL TO EMBED IN THE LATTER SAID SHEET SECTIONS CARRIED BY THE COUNTERBARS, MEANS FOR SHIFTING THE COUNTER-BARS AWAY FROM THE BARS CARRYING THE LOOPS OF THREADS FORMED BY THE REMAINING INTERMEDIATE SECTIONS OF THE SHEET OF THREADS, AND MEANS FOR SEPARATING THE SHAPING BARS FROM THE PLASTIC SOLIDIFIED LAYER IN WHICH THE LOOPS OF THREADS ARE ANCHORED THROUGH THE FIRST-MENTIONED SECTIONS OF SAID SHEET.