Abstract: Two sets of a combination of an iron core formed of laminated strip-shaped electromagnetic steel plates and a coil are arranged in parallel, and these are abutted via core gap spacers against two iron cores formed of laminated trapezoidal electromagnetic steel plates, so that a square-shaped magnetic path is formed. Two outside iron cores of the four iron cores are coupled and fixed with metal fittings. With such an arrangement, the coil is divided into two, with increased surface areas of the coils and therefore an improved cooling characteristic. Further, since the electromagnetic steel plates used for the iron cores can be formed into simple shapes, electromagnetic steel plates of various sizes can be easily manufactured, so that iron cores of optimum dimensions can be provided, optionally depending on the type of the reactor.

Abstract: Two sets of a combination of an iron core formed of laminated strip-shaped electromagnetic steel plates and a coil are arranged in parallel, and these are abutted via core gap spacers against two iron cores formed of laminated trapezoidal electromagnetic steel plates, so that a square-shaped magnetic path is formed. Two outside iron cores of the four iron cores are coupled and fixed with metal fittings. With such an arrangement, the coil is divided into two, with increased surface areas of the coils and therefore an improved cooling characteristic. Further, since the electromagnetic steel plates used for the iron cores can be formed into simple shapes, electromagnetic steel plates of various sizes can be easily manufactured, so that iron cores of optimum dimensions can be provided, optionally depending on the type of the reactor.

Abstract: A piecing apparatus for a doubler provided with a processing robot which moves along units of a doubler. The piecing apparatus comprises two piecing devices, a suction mouth for sucking and holding a yarn on the side of a winding package to guide it toward the piecing device, a relay pipe for sucking and holding a yarn on the side of a feed package to guide it toward the piecing device, an upper yarn separating device for separating a doubled yarn on the side of each winding package guided toward the piecing device, and a lower yarn separating device for separating a yarn on the side of each feed package guide toward the piecing device.

Abstract: A feed yarn package conveyor system which is capable of automatically conveying feed yarn package to a doubler. It comprises a discharge conveyor and a feed conveyor along the front and rear sides of a machine base; conveyors arranged in two rows on the right and left sides of each spindle, divided to the front and rear; a series of conveyors ranging from the discharge conveyor to the feed conveyor being declined towards the front of the machine base, with the front conveyor on the side of each spindle being set in a take-up position, such that the conveyors will be declined towards a center when feed yarn packages have been received thereat.

Abstract: Method and apparatus for separating a doubled yarn into single yarns in order to piece a doubled yarn. The doubled yarn is separated by separating members such as a clamper opened and closed in a manner of scissors, push- and separate member having an extreme end sharpened, and a plurality of yarn separating rollers having tapered portions being placed in contact with each other. Feelers or sensors may be located to provide a yarn separation signal.

Abstract: A method and apparatus for winding yarns in a package comprises displacing a traverse guide of a yarn to be traversed and moved leftward and rightward along an axial direction of a winding package, in a direction toward and away from the winding package together with the traverse movement.

Abstract: The present invention relates to a cover for enclosing an overall multiple-twisting machine. The cover comprises a balloon cover and a cover lid which is capable of opening or closing. The balloon cover includes a cylindrical tapered inner surface diverging upwardly and has an air exhaust port therewith.