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Kdyby někoho zajímalo co je vevnitř toho co poslal Wehrner, tak tady je část abstraktu z patentu. Obrázek si udělejte sami...
" A welding machine comprising a coil of wire being embedded within a cement block, both being enclosed within a PVC pipe, all being contained within a housing, said wire having both of its ends extending from said housing and are connected to attaching members opposedly held on said housing, a cord connected to one of the attaching member for connection to a single line of a power source and another cord connected to the other attaching member for connection to a welding rod, said welding rod adapted to be attached to the object to be welded and a ground metal bar, adapted to be buried on the ground, adapted to be connected to the object to be welded."