Abstract: The invention concerns a relaxant device of the cervical spine muscles of a human being, consisting of counterweight means (c) and relative support means (10, 11, 12) on a skull, suitable to arrange said—counterweights in—the rear part of the skull, the counterweights being such as to substantially balance the weight of the skull with respect to the rotation fulcrum thereof.

Abstract: A plant and method for manufacturing a wool-based, non-woven fabric is disclosed, wherein the steps are carried out of providing flocks based on natural wool fibres, of carrying out a carding and veiling of the flocks based on wool fibres, up until obtaining a veil based on wool fibres, and of carrying out needle-punching on the veil based on wool fibres, wherein at the end of the needle-punching a water-jet interleaving step is also carried out. Some products which may advantageously be obtained through such method and plant are also disclosed.