Abstract: Rectilinear vertical reciprocating movement is transmitted to the needle-holder beam of a needling machine by a crank mechanism preferably comprised of two horizontal auxiliary connecting rods hinged to a support of the beam. The two auxiliary connecting rods are mounted to the two sides of the needle-holder beam and support. Each auxiliary rod includes an end hinged to a related main connecting rod, with the other end being joined to the structure of the machine by a sliding block and two conjugate profiles. One of the profiles is fixed and the other profile is mobile. The profiles form a rolling coupling, so that each sliding block that is hinged to the related ancillary connecting rod slides when the crank mechanism runs between two extreme axial positions.

Abstract: The dispensing unit comprises a water dispensing element supported by a holder element adapted for wall mounting, between the water dispensing element and the holder element there being provided a dovetail connection system comprising a male element slidably engageable in a female member, the latter being defined by a shaped groove gradually narrowing in a parallel direction to its major dimension direction.