High frequency induction heating apparatus

In a high frequency induction heating apparatus having a heating station, a transport means for moving a non-magnetic metal article to be heated along a path through said heating station, a pair of high frequency electrical conductors in said heating station extending in a plane below and parallel to the path of movement of said article through said station, and a source of high frequency electrical current connected to said conductors whereby high frequency electrical current will flow through said conductors in mutually opposite directions;

• the improvement comprising in that said conductors are symmetrically positioned with respect to said path of movement through the length of said station, in that each said conductor extends in a direction which is uniformly inclined at a constant angle to a portion of the path of movement of said article through said heating station, and in having a guide plate in a plane spaced above said conductors and parallel to said path of movement of said article through said heating station to form an unobstructed space through which said article may move with said plate being adapted to limit movement of the article away from said conductors due to any repulsion effect between said article and said conductors when high frequency current flows through said conductors.