The present invention seeks to enable a band-shaped metal wire member to be stably accommodated within a die. A die is prepared that includes a bottom die provided with a depression and a top die provided with a projection that can be arranged within the depression so as to close off a space above the depression. An inner surface of the depression includes a central die surface formed at a width-direction center of a base of the depression and a pair of curved guide die surfaces provided continuous with two sides of the central die surface and curved so as to project outward. The central die surface is formed as a flat surface or as a surface that curves more gently than the pair of curved guide die surfaces. A bonding process portion of a band-shaped metal wire member is folded in two and arranged within the depression.

The present invention seeks to enable a band-shaped metal wire member to be stably accommodated within a die. A die is prepared that includes a bottom die provided with a depression and a top die provided with a projection that can be arranged within the depression so as to close off a space above the depression. An inner surface of the depression includes a central die surface formed at a width-direction center of a base of the depression and a pair of curved guide die surfaces provided continuous with two sides of the central die surface and curved so as to project outward. The central die surface is formed as a flat surface or as a surface that curves more gently than the pair of curved guide die surfaces. A bonding process portion of a band-shaped metal wire member is folded in two and arranged within the depression.

The present invention provides a method of manufacturing a prefilled drug delivery device comprising the steps of arranging a piston rod member (20, 22, 120, 122) and a piston rod guide (40, 140) in a housing (10, 110) such that the piston rod member extends through a guide structure (13, 113) fixed in the housing and is surrounded by and operatively coupled with the piston rod guide, whereby rotation of the piston rod guide in a first direction relative to the housing causes distal movement of the piston rod member relative to the guide structure, and vice versa, and rotation of the piston rod guide in a second direction relative to the housing causes proximal movement of the piston rod member relative to the guide structure, and vice versa, and the piston rod guide is in a first state being capable of bi-directional rota-tion with respect to the housing, bringing a displaceable wall (62, 162) of a variable volume drug reservoir (60, 160) into abutment with a distal end portion of the piston rod member, moving the variable volume drug reservoir proximally relative to the housing to a completely mounted position, and shifting the piston rod guide irreversibly to a second state in which rotation of the piston rod guide in the second direction relative to the housing is prevented.

The invention provides an extendible member (10) which is configurable between a coiled form (11) and an extended form (12). The extendible member (10) comprises: a primary member (14) comprising a sheet of material resiliently biased in a slit tube form, wherein the slit tube can be opened out at the slit to assume an open form in which it has a flattened cross section; at least one resilient secondary member (15) having first and second connections to the primary member (14) at respective different circumferential positions on the primary member (14), wherein in the extended form, the primary member (14) is in its slit tube form and the resiliency of the secondary member (15) causes at least part of the secondary member (15) to displace towards the slit in the primary member (14) to provide torsional and axial stiffness to the primary member (14), and wherein in the coiled form (11), the primary member (14) is in its open form and the secondary member (15) conforms to the flattened cross section of the primary member (149) so that primary and secondary member can be co-coiled. Corresponding methods are also provided.

The invention provides an extendible member (10) which is configurable between a coiled form (11) and an extended form (12). The extendible member (10) comprises: a primary member (14) comprising a sheet of material resiliently biased in a slit tube form, wherein the slit tube can be opened out at the slit to assume an open form in which it has a flattened cross section; at least one resilient secondary member (15) having first and second connections to the primary member (14) at respective different circumferential positions on the primary member (14), wherein in the extended form, the primary member (14) is in its slit tube form and the resiliency of the secondary member (15) causes at least part of the secondary member (15) to displace towards the slit in the primary member (14) to provide torsional and axial stiffness to the primary member (14), and wherein in the coiled form (11), the primary member (14) is in its open form and the secondary member (15) conforms to the flattened cross section of the primary member (149) so that primary and secondary member can be co-coiled. Corresponding methods are also provided.

A welding electrode for an electric resistance welding process. The welding electrode includes a body extending along a center axis and terminating axially at a weld face for contacting a work face. The weld face defines a center along the axis and defines an outer edge spaced radially from the center. A plurality of senates are defined along the weld face. Each of the serrates projects axially away from the weld face and extends radially from the center axis to the outer edge of the weld face. A higher density of the plurality of serrates is formed proximate to the center axis than proximate to the outer circumference of the weld face. Methods for using the welding electrode and forming the senates on the welding electrode are also provided.

A welding electrode for an electric resistance welding process. The welding electrode includes a body extending along a center axis and terminating axially at a weld face for contacting a work face. The weld face defines a center along the axis and defines an outer edge spaced radially from the center. A plurality of senates are defined along the weld face. Each of the serrates projects axially away from the weld face and extends radially from the center axis to the outer edge of the weld face. A higher density of the plurality of serrates is formed proximate to the center axis than proximate to the outer circumference of the weld face. Methods for using the welding electrode and forming the senates on the welding electrode are also provided.

A guide rail for an elevator system has an elongate length with a cross-section perpendicular to the length; the cross-section including a base section for mounting to a wall of a hoistway, and a blade section extending from the base section; the blade section including a guide surface for interacting with a guide element of a component movable in the elevator hoistway; the guide rail including: a pair of separate rail piece parts fixed together to form the guide rail; the pair of separate rail piece parts including a first rail piece part and a second rail piece part; the first rail piece part being formed from a first thickness of sheet material bent to have a cross-section of a first predetermined shape, and the second rail piece part being formed from a second thickness of sheet material bent to have a cross-section of a second predetermined shape.

Disclosed is a tool set for use in forming the components of a decorating nozzle from sheet metal. A tool-mounting plate mountable on the headstock of a metalworking lathe is configured with concentric grooves into which circular ribs on the tools can locate. Transverse formations prevent relative rotation between the tool and the tool-mounting plate. A method of forming nozzles comprises rolling a metal blank onto the surface of a forming tool as the tool is rotated in the lathe. Successive tools are used to achieve the desired shape.

Disclosed is a tool set for use in forming the components of a decorating nozzle from sheet metal. A tool-mounting plate mountable on the headstock of a metalworking lathe is configured with concentric grooves into which circular ribs on the tools can locate. Transverse formations prevent relative rotation between the tool and the tool-mounting plate. A method of forming nozzles comprises rolling a metal blank onto the surface of a forming tool as the tool is rotated in the lathe. Successive tools are used to achieve the desired shape.