Abstract: A rigid pack of substantially parallelepiped appearance for tobacco products appears as a container (5) with an open top end (6), surmounted by a lid (7) hinged to the container (5) and rotatable between positions in which the top end (6) is open and closed. The pack (1) presents four lateral faces (17, 18, 19), and two end faces (12, 16) disposed mutually parallel and perpendicular to the lateral faces (17, 18, 19); at least one of the six faces (12, 16, 17, 18, 19) presents a raised portion (22) with an outwardly directed convex profile obtained by plastically deforming at least one panel (43, 44) of a blank (31) before the blank is folded around the tobacco products to fashion the pack (1).

Abstract: A rigid pack of substantially parallelepiped appearance for tobacco products appears as a container (5) with an open top end (6), surmounted by a lid (7) hinged to the container (5) and rotatable between positions in which the top end (6) is open and closed. The pack (1) presents four lateral faces (17, 18, 19), and two end faces (12, 16) disposed mutually parallel and perpendicular to the lateral faces (17, 18, 19); at least one of the six faces (12, 16, 17, 18, 19) presents a raised portion (22) with an outwardly directed convex profile obtained by plastically deforming at least one panel (43, 44) of a blank (31) before the blank is folded around the tobacco products to fashion the pack (1).

Abstract: The invention finds application in the field of cutting tools, in particular for the cutting of disc-shaped metal sheets. More precisely, the invention relates to a disk-shaped tool (1) equipped with a knife with a circular cutting edge (4), having laterally two curved flanks (3). The knife (4) inserts itself into the width of a disc-shaped metal sheet (2), partially separating it into two sheets (5).

Abstract: The invention relates to a machine tool, in particular for the manufacturing, from sheet metal of mechanical parts such as pulleys, wheels and similar.It comprises a first chuckhead quill (4) rotatably mounted to a sturdy frame (1) and having coaxially and independently housed inside it a toolhead spindle (7) which can be commanded to slide in axial direction with respect to said quill (4). A second chuckhead quill (20) is exactly contra-positioned with respect to the first (4) and is rotatably mounted to a support element (18) which is slidably mobile in a direction parallel to its axis and which is slidably commanded by a powerful coaxial hydraulic jack (23). A second toolhead spindle (21) is coaxially disposed inside said second quill (20) with freedom to slide axially with respect to said quill (20).

Abstract: A process for separating and recovering organic compounds from an oxygen-taining recycle gas deriving from an ozonization process is disclosed. The process comprises the separation of products in form of fumes from the gas, the countercurrent scrubbing of the gas with a polyoxyalkyleneglycol containing 2-4 carbon atoms, pre-treated with a monocarboxylic acid anhydride and/or the countercurrent scrubbing of the gas with the polyoxyalkyleneglycol or with an excess of a base. The organic compounds are recovered either by stripping (at atmospheric pressure or under vacuum) or by hydrolysis followed by distillation (at atmospheric pressure or under vacuum).

Abstract: A method and a device are disclosed for lubricating the internal bearings thin-layer evaporators used in polycondensation or polymerization installations, in which the lubricant used for said internal bearings is the same polymer in an appropriate intermediate degree of polymerization where it exhibits the fluidity required to serve as a lubricant. Means are provided for circulating and recycling the polymer and critical viscosity values are suggested for the polymer when used as a lubricant.