Verfahren und Vorrichtung zur Regelung der Zufuhr der Mantelmasse bei der Herstellung ummantelter Schweisselektroden

摘要

Flowable material is supplied to a feed hopper. Feeder screw means disposed in said feed hopper are operated to force said material out of said hopper and to exert a thrust which varies with the amount of flowable material in said hopper. The supply of additional flowable material to said hopper is controlled in response to said thrust.