Induction heating apparatus having openable and closable coil

An induction heating apparatus comprising:

• a coil including a first coil section of at least one turn having a discontinuity at one location, a second coil section of at least one turn having a discontinuity at one location, a first electrical conductor electrically conductively connecting one end of each said turn of said first coil section defined at the discontinuity thereof to one end of each said turn of said second coil section defined at the discontinuity thereof, and a second electrical conductor electrically conductively connecting the other end of each said turn of said first coil section defined at the discontinuity thereof to the other end of each said turn of said second coil section defined at the discontinuity thereof, whereby one continuous electric current passageway is formed by the turns of said coil sections and said conductors, and each of said turns of the coil sections having a flexible portion between the ends thereof defined at the discontinuity;
• open/closing means connected to the coil for swinging respective portions of the coil relative to one another about said flexible portions of the turns of the coil sections of said coil so as to vary a distance between each said first conductor and each said second connector conductor;
• and a power supply connected to said coil.