Patent ID: 7412996

Claim:
An apparatus for assembling and hemming fabric materials by hot applying to said fabric material a strip or film, said apparatus comprising a bearing framework supporting a strip or film supplying spool, said strip or film being entrained on a pulling roller, a transmission roller arranged between said supplying spool and said pulling roller, a sensor roller mounted on a swinging lever, supporting a strip guiding pawl, said strip being further entrained on a strip supplying pulling assembly, downstream of said pawl being provided a guiding assembly having an outlet thereat is arranged a pressing roller associated with a fabric pressing foot assembly cooperating with fabric material entraining grippers for entraining, by an indexing type of entraining, said fabric material, wherein said grippers comprise a removable main gripper and a removable differential gripper, providing a strip transport movement of a reciprocating elliptical type to cause said fabric material to be fed with an indexing type of movement, thereby passing under front and rear portions of said foot assembly and pressing roller, said grippers being driven and supported by two independent arms allowing said grippers to be used either coupled to one another and/or in an independent manner, a single gripper being used for fabric materials having a large weight, whereas said main gripper and differential gripper are connected thereby allowing to properly change the transport movement ratio thereof, for fabric materials to be delicately thermosealed.