A magnetic separator for a central heating system comprises a housing, a separation chamber within the housing, and inlet and outlet ports extending from the housing. The inlet and outlet ports include push-fit connectors having collets surrounding the mouth of each of the inlet and outlet for releasing the connectors. The magnetic separator also has a release tool. The release tool has first and second bearing areas for bearing against the collets of the inlet and outlet connectors, and a handle region for enabling force to be applied, via the bearing areas, to both connectors simultaneously.

A hammer for installing a gasket into a joint between two pipes, the hammer comprising two opposed substantially rectangular, non-square strike surfaces which are rotationally offset from one another by 90 degrees such that an appropriate substantially rectangular, non-square strike surface may be selected by the user and applied to a gasket by simply rotating the hammer in the user's hands without requiring the user to relocate around the gasket.

Method and apparatus for producing a curved tubular segment comprising obtaining a curved external tubular element and a curved internal tubular element made of a material having a resistance to wear greater than that of the curved external tubular element and having a cross section such as to cover at least part of the internal surface of the curved external tubular element. It provides the insertion of the curved internal tubular element inside the curved external tubular element after heating the latter by means of a heating unit. Moreover, to form the curved external tubular element on the exact geometry of the curved internal tubular element a molding unit and a cooling unit are used to obtain a curved tubular segment without spaces between the curved external tubular element and the curved internal tubular element.

A method of manufacturing a vehicle frame body, the method includes: a placement process of placing a reinforcing member at a portion of a frame member, the portion being located in a length direction of the frame member and within the frame member, the frame member being a single member having an elongated shape and configuring a chamber structure; and, after the placement process, a bending process of bending the frame member at a placement region of the reinforcing member, causing reaction force to be generated by the reinforcing member against the frame member undergoing cross-sectional deformation, and pressure joining the reinforcing member to the frame member.

A method of manufacturing a vehicle frame body, the method includes: a placement process of placing a reinforcing member at a portion of a frame member, the portion being located in a length direction of the frame member and within the frame member, the frame member being a single member having an elongated shape and configuring a chamber structure; and, after the placement process, a bending process of bending the frame member at a placement region of the reinforcing member, causing reaction force to be generated by the reinforcing member against the frame member undergoing cross-sectional deformation, and pressure joining the reinforcing member to the frame member.

The invention relates to a method and a coating device for applying a cladding layer onto the inner side of a carrier layer during the production of a multilayer heavy-duty pipe, with a pressure-exerting unit having a force application unit. A stable application of the cladding layer is achieved by having the coating device comprise a rolling tool with the pressure-exerting unit and the force application unit, and by providing the pressure-exerting unit with at least one pressure roller having a diameter that is smaller than the inside diameter of the heavy-duty pipe to be produced, and with at least one support element acting diametrically counter thereto with a supporting force in the operating state.

The invention relates to a method and a coating device for applying a cladding layer onto the inner side of a carrier layer during the production of a multilayer heavy-duty pipe, with a pressure-exerting unit having a force application unit. A stable application of the cladding layer is achieved by having the coating device comprise a rolling tool with the pressure-exerting unit and the force application unit, and by providing the pressure-exerting unit with at least one pressure roller having a diameter that is smaller than the inside diameter of the heavy-duty pipe to be produced, and with at least one support element acting diametrically counter thereto with a supporting force in the operating state.

The invention relates to a press sleeve for a press fitting for producing a sealing non-detachable pipe connection, with a receiving portion (4) for receiving a fitting basic body (6) and with a press portion (8), wherein the inside diameter of the receiving portion (4) is adapted to the outside diameter of the fitting basic body (6) and wherein the inside diameter of the press portion (8) is designed to be smaller than the outside diameter of the fitting basic body (6) at least in certain sections. The press sleeve is distinguished by the fact that at least one retaining lug (10) which can be clamped resiliently inwards in the radial direction (R) is provided in the receiving portion (4) and that the retaining lug (10) has a free end portion (12) which, with the retaining lug (10) in the stress-relieved state, protrudes at least partially into the inner region of the receiving portion (4) in the radial direction (R).

A joining method of a structure includes preparing a first member including a first portion provided with a first hole and a second portion provided with a second hole, a second member, a die, and an elastic member, inserting the second member into the first hole, inserting the elastic member into the second member, in a state where one end of the second member in an axial direction is located between the first portion and the second portion, compressing and expanding the elastic member in the axial direction, thereby expanding and deforming the second member at a portion passing through the first hole to be swaged and joined to the first portion. The die includes a support surface for applying a compressive force from the die to the elastic member through the second hole. The support surface is perpendicular to an axial direction of the elastic member.

A pipe joint device configured to interconnect two pipes to be inserted therein through openings of both opened ends thereof including a joint main body and a joint assembly disposed in the joint main body is provided. The joint main body includes a small-diameter part formed at a central part and large-diameter parts formed at both sides of the small-diameter part. Each of the large-diameter parts has a first horizontal part, a diameter-reduced part of which a diameter gradually decreases from the first horizontal part toward the opening, and a second horizontal part extending horizontally from the diameter-reduced part toward the opening. A portion of each of the second horizontal parts is configured as a curled part inclined toward an outer-diameter direction and the opening of the pipe joint device and then again inclined toward an inner-diameter direction and the opening and having a mountain-shaped section as a whole.