Described is an apparatus and a method for applying a first gum strip to a first edge of a cord reinforced ply, wherein the apparatus includes a ply support for supporting the cord reinforced ply and a first strip support that defines an elongate first strip region extending in the longitudinal direction for supporting the first gum strip with respect to the ply support, and wherein the first strip support includes a first retaining member for retaining a first part of the first gum strip below the first edge and a first folding member that is rotatable with respect to the first retaining member about a first folding axis from a flat position into a folding position opposite to the first retaining member with respect to the support plane for folding a second part of the first gum strip around the first edge.

A method for manufacturing a secondary battery includes a forming step of pressing a pouch sheet by using a press die so that left and right accommodation grooves, which are bilaterally symmetrical to each other and are opened upward, and a bridge connecting the left and right accommodation grooves to each other are formed in the pouch sheet, wherein the bridge protrudes upward with respect to bottom surfaces of the left and right accommodation grooves, and a curved portion having a rounded shape is formed on an upper end of the bridge, a seating step of seating an electrode assembly in one of the left and right accommodation grooves, and a folding step of folding the pouch sheet so that the left and right accommodation grooves face each other.

A method for producing a tube skirt for a flexible tube, said tube skirt being manufactured from a flat strip 1 comprising a decorative film 15 superimposed on a primary film 16, said primary film 16 comprising a sealable inner layer 14 at the lower surface 20 of the strip 1 as well as two stabilizing layers 11, 13, said decorative film 15 comprising a sealable outer layer 7 at the upper surface 19 of the strip 1, and a decorative layer 8, 9. This method comprises the following steps: winding the flat strip 1 into the form of a sleeve to shape the tube skirt; superimposing a first side border 2 of the strip 1 on a second side border 2 of the strip 1 to form an overlapping area 3, the sealable inner layer 14 of the primary film 16 of the first side border 2 overlapping the sealable outer layer 7 of the decorative film 15 of the second side border 2; applying a heating temperature T2 to the inside of the tube skirt at the inner face 22 of the overlapping area 3 to produce the side weld of the tube skirt; simultaneously with the application of the heating temperature T2, applying compression between the outer 21 and inner 22 faces of the overlapping area 3 so as to finalize the side weld of the tube skirt.

Provided herein is a method of manufacturing a product having a complex shape by using at least one jig and at least one mandrel. The method of manufacturing a product having a complex shape by using at least one jig and at least one mandrel is configured to include: a preparation step of preparing a prepreg sheet and a cylindrical first mandrel around which the prepreg sheet is wound; a first rolling step of forming a first stacking surface by winding the prepreg sheet around the first mandrel; a second mandrel preparation step of locating a second mandrel on the outer circumferential surface of the first stacking surface; a second rolling step of forming a second stacking surface by winding the first stacking surface and the second mandrel with the prepreg sheet; and a core removal step of removing the first mandrel and the second mandrel.

Provided herein is a method of manufacturing a product having a complex shape by using at least one jig and at least one mandrel. The method of manufacturing a product having a complex shape by using at least one jig and at least one mandrel is configured to include: a preparation step of preparing a prepreg sheet and a cylindrical first mandrel around which the prepreg sheet is wound; a first rolling step of forming a first stacking surface by winding the prepreg sheet around the first mandrel; a second mandrel preparation step of locating a second mandrel on the outer circumferential surface of the first stacking surface; a second rolling step of forming a second stacking surface by winding the first stacking surface and the second mandrel with the prepreg sheet; and a core removal step of removing the first mandrel and the second mandrel.

A method of forming a hollow spar for an aerofoil includes forming a sandwich structure having a first structural layer, a second structural layer and a cellular core layer located in between the first structural layer and the second structural layer. At least part of the sandwich structure is removed at intervals corresponding to one or more corner locations, and the sandwich structure is folded at the one or more corner locations to define a hollow space and form the spar. A chordwise extending rib section for an aerofoil has a substantially planar web with a chordwise length; and a reinforcement strip attached to an edge of the web over substantially the majority of the chordwise length.

An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.

An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.

A method for producing a filter element for filtering fluids, such as hydraulic fluids, lubricants or fuels, includes the following steps: a) providing at least one section of a filter mat web (14) made of one or more layers of at least one filter medium; b) connecting the ends of the at least one section to form an annular body (12) and placing that annular body onto a support pipe (16); c) wrapping at least one cutout of a film web (8) around the outside of the annular body (12) located on the support pipe (16) and d) placing end areas (24) of the at least one cutout of the film web (8) one on top of the other and connecting the overlapping end areas (24).

A plastic container is provided having a sidewall, a downwardly extending upper lip, and a perforated line defined at a top edge of the container where the lip and sidewall are joined. The sidewall and lip may be formed from a container body constructed of a single sheet of material that is wrapped such that marginal edge portions of the blank are brought together in overlapping fashion to form a side seam. When the sidewall and lip are formed from such a blank of material, the perforated line is formed a specified distance below a top edge of such blank. The perforated line reduces the amount of force, heat and lubricant required in order to form (e.g., curl, roll, fold or bend) the upper lip of the container. The slits of the perforated line may extend across a width of the blank in either a uniform or variable fashion.