VORRICHTUNG ZUR HERSTELLUNG ELEKTRISCHER SPEICHERBATTERIEN

摘要

An apparatus for welding a battery box lid to a battery box, employing a heater for melting portions of the lid between the filling tubes and around the lid. The heater is provided with bores receiving the filling tubes, the bores being substantially larger than the filling tubes and being undercut from the surface of the heater so that the filling tubes are not melted when the portions of the lid adjacent the filling tubes are melted.