Abstract: A device for repairing damaged tube-to-tube sheet weld joints in a shell-and-tube equipment is disclosed. The device consists in a tubular connection element oriented along a central axial direction and includes at least one inner wall, designed to enclose an inner conduit for the passage, along the central axial direction, of at least one fluid processed by the shell-and-tube equipment, and at least one outer wall, which surrounds the inner wall. The tubular connection element is provided, at one end thereof, with at least one first connecting portion for the connection, through a butt-welded joint, to one corresponding tube of the shell-and-tube equipment and, on one side thereof, with at least one second.

Abstract: A syngas loop boiler includes a casing that surrounds a tube bundle, wherein the tube bundle includes a plurality of tubes. One end of each of the tubes is joined to a tube-sheet provided with corresponding tube-sheet inlet holes for inletting the syngas in the boiler, wherein each tube-sheet inlet hole is internally provided with at least a protective sleeve welded at both ends to corresponding surfaces of the tube-sheet inlet hole. Each tube-sheet inlet hole is provided with a first respective weld overlay placed at the inlet mouth of the tube-sheet inlet hole, so that a first end of each protective sleeve is welded to the first weld overlay. Each tube-sheet inlet hole is internally provided with at least a bore groove that contains a respective in-bore second weld overlay, so that the second end of the protective sleeve is welded to the in-bore second weld overlay.

Abstract: A magnetic belt used in magnetic sensing device for measuring a rotation speed of a rotating shaft comprises a belt body adapted to be wound around a perimeter of the shaft in the shape of a circle and fixed thereto. The belt body includes a row of toothed protrusions arranged on a first outer surface of the belt body. With the belt body arranged on the shaft, the toothed protrusions are evenly spaced around a circumference of the rotation shaft.

Abstract: A syngas loop boiler includes a casing that surrounds a tube bundle, wherein the tube bundle includes a plurality of tubes. One end of each of the tubes is joined to a tube-sheet provided with corresponding tube-sheet inlet holes for inletting the syngas in the boiler, wherein each tube-sheet inlet hole is internally provided with at least a protective sleeve welded at both ends to corresponding surfaces of the tube-sheet inlet hole. Each tube-sheet inlet hole is provided with a first respective weld overlay placed at the inlet mouth of the tube-sheet inlet hole, so that a first end of each protective sleeve is welded to the first weld overlay. Each tube-sheet inlet hole is internally provided with at least a bore groove that contains a respective in-bore second weld overlay, so that the second end of the protective sleeve is welded to the in-bore second weld overlay.

Abstract: Disclosed is an extruding apparatus and relative feeding assembly, including hopper unit in correspondence of an extruder-feeding area, wherein an extrusion screw having a first rotation axis and a drive roller having a second rotation axis are arranged at a distance each other so that a gap for raw material feeding is defined between the screw and the drive roller, wherein the drive roller has a substantially conical surface with respect to its own rotation axis, the conical surface having a taper vertex facing toward a progression direction of the extrusion screw.

Abstract: A KIT for a capsule machine, in particular for a coffee capsule machine comprising, in cascade, a feeding water reservoir (14), an infusion model (12) and a brewing group (16) and set up to prepare brews with hot water under pressure. The KIT comprises at least a soluble product set up to be inserted in a body of a capsule (22), at least a cap comprising on a crown or edge thereof an adhesive set up to seal the soluble product inside the body of the capsule (22), so as to, during use, the capsule (22) obtained with the KIT (30) can be inserted in the infusion module (12) of the machine (10) to carry out a cleaning an hygiene operation of the brewing group (16) during at least an empty cycle of said machine (10). The invention also relates to a method for arranging and using cleaning and hygiene KIT of a capsule machine.

Abstract: A slide fastener is provided. Each of two adjacent stringers includes a fastener tape which has outer and inner longitudinal edge portions and an intermediate portion between the outer and inner longitudinal edge portions and carries respective coupling elements provided in the fastener tape. Each stringer is provided with a plurality of decorative beads. The decorative members are provided on an outside surface of the fastener tape and the coupling elements are provided on an inside surface of the fastener tape. The decorative members are affixed to the outside surface of the fastener tape in which the intermediate portion is formed.

Abstract: A method for manufacturing an optical device including at least one silicone elastomer optical waveguide includes the steps of providing a substantially rigid mold with a patterned surface, providing a core layer of a curable silicone elastomer, patterning the core layer by means of the patterned surface of the substantially rigid mold, curing the patterned core layer, and removing the substantially rigid mold from the patterned core layer. The method advantageously allows the manufacture of an optical device including at least one optical waveguide in a single step and in a reproducible manner.

Abstract: An optical waveguide has a core layer made by a film containing a cross-linked polyamide based on a repeating unit of general formula (I) and a method for the production thereof.

Abstract: An optical waveguide has a core layer made by a film containing a cross-linked polyamide based on a repeating unit of general formula (I) and a method for the production thereof.

Abstract: An optical waveguide based on a photochromic diarylethene polymer dispersed in a polymeric matrix, and a method for preparing such waveguide is disclosed.

Abstract: An optical waveguide based on a photochromic diarylethene polymer dispersed in a polymeric matrix, and a method for preparing such waveguide is disclosed.