Abstract: It is presented a pipe connector (1) comprising a tubular part (2) having a first portion (2-1) with a first outer diameter and second portion (2-2) with a second outer diameter which is larger than the first outer diameter, which second portion has a circumferential groove (11), a removable stop ring (5), which, when arranged in the groove (11), protrudes radially from the tubular part (2), and a flange part (7) having a central through opening for receiving the tubular part (2), wherein the flange part (7) has a shoulder (13) for abutting against the stop ring (5) when the flange part (7) is arranged around the stop ring (5), wherein the first portion (2-1) has a plastic external peripheral surface, and the second portion (2-2) of the tubular part (2) has a metal external peripheral surface.

Abstract: A parallel-kinematical machine (20) that includes three setting devices (24.1, 24.2, 24.3) each of which can be lengthened and shortened individually, wherein each setting device (24.1, 24.2, 24.3) is connected to a first, a second and a third respective inner gimbal ring (23.1, 23.2, 23.3) of universal gimbal joints (UGJ) and that each inner gimbal ring (23.1, 23.2, 23.3) is mounted in bearings (25, 26, 27) for rotation in gimbal holders (21, 22) which are rotationally mounted in outer gimbal bearings (28, 29, 39) in an outer mounting (290) wherein the first inner gimbal ring (23.1) and the third inner gimbal ring (23.3) are mounted for rotation in a common outer gimbal holder (21) which is mounted for rotation about a common gimbal axis (32, 52) and in that the second inner gimbal ring (23.2) is mounted for rotation in a single gimbal holder (22) which is mounted in two opposite bearings for rotation about a second gimbal axis (31, 51) which is not aligned with said common gimbal axis (32, 52).

Abstract: A coaxial borehole heat exchanger includes an innermost pipe and an intermediate pipe arranged coaxially outside the innermost pipe. The intermediate pipe has an inner surface provided with a plurality of axial grooves, and the inner diameter of the intermediate pipe corresponds to the outer diameter of the innermost pipe. The coaxial borehole heat exchanger further includes an outermost pipe arranged coaxially outside the intermediate pipe, wherein the outermost pipe has an inner surface provided with a plurality of axial grooves, and wherein the inner diameter of the outermost pipe corresponds to the outer diameter of the intermediate pipe, wherein the innermost pipe and the plurality of axial grooves of the outermost pipe define liquid flow channels, and wherein the axial grooves of the intermediate pipe define a thermal insulation layer between the axial grooves of the outermost pipe and the innermost pipe. A method of producing a coaxial borehole heat exchanger is also presented herein.

Abstract: Disclosed is a method for laundering textiles, where the wash liquor is reused in one or more wash cycles.

Abstract: A clutch arrangement includes a shift piston and a piston housing. The shift piston is arranged to be displaced in an axial direction relative to the piston housing between at least one gear position and a neutral position. The clutch arrangement also includes a spring element for forcing the shift piston towards the neutral position. The clutch arrangement includes a first return piston and a second return piston arranged on opposite sides of the spring element, and the spring element is accommodated within a recess of the shift piston and is pretensioned between the first return piston and the second return piston.

Abstract: An arrangement is provided for supplying oil to a brake arranged for braking an output shaft of a planetary gear. The arrangement includes a rotatable impeller for supplying oil to the brake and the impeller is arranged to be rotated by an input shaft of the planetary gear.

Abstract: An apparatus for the cleaning of crankcase gas from an internal combustion engine includes a housing and a separation chamber for the crankcase gas with a centrifugal rotor arranged for the cleaning of the crankcase gas in the separation chamber. The centrifugal rotor includes a drive shaft extending into a drive chamber of the apparatus. A turbine is connected to the drive shaft. A nozzle is arranged to receive pressurized liquid from the combustion engine and to direct the pressurized liquid in a jet from a nozzle opening against the turbine for rotation of the centrifugal rotor. An adapter element is configured such that the apparatus is mountable onto the combustion engine with a drive liquid passage in communication with the nozzle. The nozzle is integrally formed with the adapter element with a nozzle passage having a conical shape which converges in the flow direction towards the nozzle opening.

Abstract: A bearing vibration measuring device for a turbo machine in which an outer housing and an inner housing are held concentrically at a distance from one another by way of at least one strut is provided. A bearing housing is disposed which is accessible from the outer housing through a radially extending access hole in the strut, the device includes a rod with an inner longitudinal end and an outer longitudinal end facing away from the inner longitudinal end, the rod being housed in access hole and being fastened at the inner longitudinal end to the bearing housing and including at least one vibration sensor on the outer longitudinal end.

Abstract: A fusion welding socket for coupling together double walled plastic conduits including an inner pipe, an outer pipe surrounding the inner pipe and an annular space arranged between the inner and outer pipes. The fusion welding socket includes a main body comprising a first end portion, a second end portion and an intermediate portion. The intermediate portion has at least one inner diameter which is smaller than the inner diameters of the first and second end portions. Three heating coils are embedded in the first end portion, the second end portion and the intermediate portion, respectively, for fusing together the first and second end portions with a respective outer pipe of a first and second conduit and the intermediate portion with a respective inner pipe of the first and second conduit. A passageway includes an annular space is arranged to connect the annular spaces of the first and second conduit after fusion.

Abstract: An apparatus for revealing the geometry of operative cylinders, in particular during the grinding operation of the same, includes a pair of movable clamps which can be moved away from and towards each other with respect to a fixed intermediate structure, the clamps having tilted surfaces in opposite directions to each other according to a swallowtail arrangement with respect to a cylinder being measured, positioned between them and between a surface of the fixed intermediate structure, the surfaces of the movable clamps and the surface of the fixed intermediate structure always being kept in contact with the cylinder, whether still or rotating, wherein the fixed structure also has, in its interior, parts of a group which interact with each other to correlate the movement of the clamps.

Abstract: A fusion welding socket for coupling together double walled plastic conduits including an inner pipe, an outer pipe surrounding the inner pipe and an annular space arranged between the inner and outer pipes. The fusion welding socket includes a main body comprising a first end portion, a second end portion and an intermediate portion. The intermediate portion has at least one inner diameter which is smaller than the inner diameters of the first and second end portions. Three heating coils are embedded in the first end portion, the second end portion and the intermediate portion, respectively, for fusing together the first and second end portions with a respective outer pipe of a first and second conduit and the intermediate portion with a respective inner pipe of the first and second conduit. A passageway includes an annular space is arranged to connect the annular spaces of the first and second conduit after fusion.

Abstract: A device for cleaning a gas which is contaminated with particles, includes a centrifugal separator with a centrifugal rotor for separating the particles from the gas and a drive arrangement for rotating the centrifugal rotor about a rotational axis. The drive arrangement includes an impulse turbine drivingly connected to the centrifugal rotor and a nozzle for a pressurized fluid, the impulse turbine being arranged with buckets for receiving a jet of pressurized fluid from a nozzle directed against the buckets which are configured such that the fluid jet direction is reversed along a height of the bucket. The height of the bucket is 2-3 times the diameter of the nozzle opening.

Abstract: A method for positioning operative cylinders, for example of rolling-mills or paper-mills on a grinding machine, includes at least the following steps: A—positioning the transversal, longitudinal center-line plane of the cylinder in correspondence with a reference point situated between a movable piece-holder head and tailstock center of the machine; B—moving the piece-holder head and the tailstock center in the direction of the cylinder until there is a reciprocal coupling. The present invention relates also to a machine for implementing the above method.

Abstract: An arrangement is provided for supplying oil to a brake arranged for braking an output shaft of a planetary gear. The arrangement includes a rotatable impeller for supplying oil to the brake and the impeller is arranged to be rotated by an input shaft of the planetary gear.

Abstract: A grinding machine for operative cylinders, of the type comprising a piece-holder head and a tailstock center between which an operative cylinder is positioned for being ground, includes a moving system associated with both the piece-holder head and the tailstock center to allow them to be moved along a common movement direction. A further object of the present invention relates to a grinding method.

Abstract: A power transmission arrangement includes a differential gear adapted to transfer power from an input shaft to a first output shaft, and a first brake adapted to effect the first output shaft and a second brake adapted to effect the input shaft.

Abstract: It is presented a pipe connector (1) comprising a tubular part (2) having a first portion (2-1) with a first outer diameter and second portion (2-2) with a second outer diameter which is larger than the first outer diameter, which second portion has a circumferential groove (11), a removable stop ring (5), which, when arranged in the groove (11), protrudes radially from the tubular part (2), and a flange part (7) having a central through opening for receiving the tubular part (2), wherein the flange part (7) has a shoulder (13) for abutting against the stop ring (5) when the flange part (7) is arranged around the stop ring (5), wherein the first portion (2-1) has a plastic external peripheral surface, and the second portion (2-2) of the tubular part (2) has a metal external peripheral surface.

Abstract: A protection device for a grinding wheel includes a containment structure having an operating opening for a grinding wheel, wherein the containment structure includes a fixed portion and a movable portion which can be moved with respect to the fixed portion by means of a motor and which can be blocked with respect to the first fixed portion by means of a magnetic blocking unit. The device further includes a sensor adapted to automatically detect the position of the movable portion, and a control means of the entire device.

Abstract: A contrast device for the grinding of products, particularly but not exclusively cylinders, held between centres, wherein a grinding machines (21) comprise a holding structure (20) equipped with a grinding wheel (24) to which a cylinder to be processed (22) is opposed, and the contrast device (23) is situated on the opposite side of the cylinder (22) with respect to the grinding wheel (24), the contrast device (23) comprising a slide (25) assembled on a short pipe (26) sliding inside a body (27) of the contrast device (23) by an interposed actuator (28, 35), there also being a blocking element (29) of the relative position of the short pipe (26) with respect to the body (27) and an irreversible blocking device (31, 32, 33) of the position of the pipe (26) with respect to the cylinder (22).

Abstract: It is presented a method for producing a cured polymer structure from a polymer compound which is UV curable and partly UV transparent. The method comprises injecting the polymer compound into a mould (2), which mould (2) has at least one wall (7) defining a mould space (6) for receiving the polymer compound in the mould space (6). The at least one wall (7) of the mould (2) is UV transparent and comprises a thermoplastic polymer. The polymer compound is then irradiated through the at least one wall (7), by means of at least one UV semiconductor light source, thereby curing the polymer compound to form the cured polymer structure. An assembly for producing a polymer structure and a mould (2) is also presented herein.