The invention is a method for forming a continuous strand of wire into a spiral support structure. The method includes winding a continuous strand of wire around a first central axis into a primary spiral. The primary spiral thereafter is stretched linearly to form an elongated spiral of desired pitch, which is then wound around a second central axis to form spiral support structure. This resulting spiral support structure can have two or more sides. The amount of sides depends on ratio of first axis to the second axis along with the pitch of the spiral. The crest and depressions of the structure are linearly aligned, and are parallel to each other.

Provided is a rectangular wire edgewise-bending processing device for performing an edgewise-bending process for a rectangular wire to form a coil, the rectangular wire edgewise-bending processing device including a fixing unit for fixing the rectangular wire, a pressing tool for pressing a surface formed by a long side of a rectangular cross section of the rectangular wire, and a bending tool for bending the rectangular wire into a predetermined coil shape, wherein the edgewise-bending process is performed while the surface formed by the long side of the rectangular cross section of the rectangular wire is pressed.

Provided is a rectangular wire edgewise-bending processing device for performing an edgewise-bending process for a rectangular wire to form a coil, the rectangular wire edgewise-bending processing device including a fixing unit for fixing the rectangular wire, a pressing tool for pressing a surface formed by a long side of a rectangular cross section of the rectangular wire, and a bending tool for bending the rectangular wire into a predetermined coil shape, wherein the edgewise-bending process is performed while the surface formed by the long side of the rectangular cross section of the rectangular wire is pressed.

The coil winding device includes a nozzle configured to feed a wire to wind the wire around the winding core to form a coil, a plurality of hook rods disposed in predetermined intervals around an end part of the winding core, the wire drawn out from an edge of the coil being configured to be hooked to each of the plurality of hook rods during a forming process of the coil, a winding core rotating mechanism configured to rotate the winding core together with the plurality of hook rods, a hook rod rotating mechanism configured to rotate the plurality of the hook rods, and a wire drawing-out mechanism configured to draw out the wire from the edge of the coil and hook the wire on the hook rods during the forming process of the coil.

The coil winding device includes a nozzle configured to feed a wire to wind the wire around the winding core to form a coil, a plurality of hook rods disposed in predetermined intervals around an end part of the winding core, the wire drawn out from an edge of the coil being configured to be hooked to each of the plurality of hook rods during a forming process of the coil, a winding core rotating mechanism configured to rotate the winding core together with the plurality of hook rods, a hook rod rotating mechanism configured to rotate the plurality of the hook rods, and a wire drawing-out mechanism configured to draw out the wire from the edge of the coil and hook the wire on the hook rods during the forming process of the coil.

A working channel tube and a method for producing the working channel tube, the method including providing a tube reinforced with a wire coiled and embedded between an inner and outer surface of the tube, a non-embedded wire portion of the wire extending from an exit point; bending the non-embedded wire portion at a rotation location forming a bend, a first non-embedded wire sub portion and a second non-embedded wire sub portion; extending the second non-embedded wire sub portion back across the tube to a clamping location; clamping the second non-embedded wire sub portion at the clamping location in a clamp; and rotating the non-embedded wire sub portions at the rotation location such that the first and second non-embedded wire sub portions twist around each other until the wire breaks. Moreover, a working channel tube produced by said method, and an endoscope comprising said working channel tube are disclosed.

A method and a machine to manufacture windings around respective supports, which includes: at least two different winding stations operating in parallel; a main conveyor configured to feed two supports to the two winding stations; two guide fingers, each arranged in a respective winding station and configured to engage a wire in a sliding manner and, hence, move the wire so as to wind the wire around the respective support in order to manufacture a series of turns making up the winding; a same common operating body which supports both guide fingers; a first actuator device configured to move the operating body so as to subject the two guide fingers to the same law of motion; and a second actuator device configured to move a guide finger relative to the operating body if a respective winding does not have to be manufactured in the corresponding winding station.

A method and a machine to manufacture windings around respective supports, which includes: at least two different winding stations operating in parallel; a main conveyor configured to feed two supports to the two winding stations; two guide fingers, each arranged in a respective winding station and configured to engage a wire in a sliding manner and, hence, move the wire so as to wind the wire around the respective support in order to manufacture a series of turns making up the winding; a same common operating body which supports both guide fingers; a first actuator device configured to move the operating body so as to subject the two guide fingers to the same law of motion; and a second actuator device configured to move a guide finger relative to the operating body if a respective winding does not have to be manufactured in the corresponding winding station.

The present invention relates to a metal coil, in particular a tungsten coil. One aspect of the invention relates to a method of manufacturing said metal coil, a further aspect to the metal coil itself, and yet a further aspect to the use of the metal coil in a heat conduction vacuum gauge, a Pirani element, or as a glow filament.

The present invention relates to a metal coil, in particular a tungsten coil. One aspect of the invention relates to a method of manufacturing said metal coil, a further aspect to the metal coil itself, and yet a further aspect to the use of the metal coil in a heat conduction vacuum gauge, a Pirani element, or as a glow filament.