ANORDNING FOR HOPSVETSNING AV TVA ROR ELLER TUBER MOT VARANDRA

摘要

An electron gun which is displaced on a carriage relatively to two abutting cylindrical sleeves is guided so as to produce an electron beam which travels along the line of junction, the carriage being housed within a vacuum-tight enclosure which is applied against the sleeves on each side of the junction line. The cylindrical sleeves are supported and displaced in rotation about a horizontal axis with an equal range of motion and at a speed of opposite sign with respect to the linear speed of the carriage. The carriage thus remains motionless in a position such that the electron beam is continuously vertical.