Current supplying apparatus for a wire-cut electric discharge machine

An apparatus for supplying current to a wire electrode of a wire-cut electric discharge machine comprising means for supplying working fluid to an electrode including a hollow main body and a nozzle on said body for discharge of the working fluid against the electrode, a current supplying member for supplying electric current to the wire electrode, said current supplying member being positioned outside said hollow main body for contacting the wire electrode at a location spaced from said main body, and means for discharging a cooling fluid from said main body against said current supplying member, said current supplying member having a contact surface on which the wire electrode travels in contact therewith, said contact surface having opposite ends, at a first of which the electrode first contacts the current supplying member and at the second of which the electrode leaves the current supplying member, said cooling fluid being discharged against one of said ends, said current supplying member having a back surface which forms an angle with the electrode extending from said contact surface, at said end against which the fluid is discharged, which is greater than 90 degrees, said current supplying member being tapered between said back surface and said contact surface to widen at an acute angle from said end at which the cooling fluid is discharged to prevent formation of gaps between the current supplying member and the electrode end provide a substantially continuous flow path for the discharged fluid along said back surface.