Dosierende Ausgußanordnung

摘要

A spout bowl assembly for a glass forming machine which forms containers from discrete gobs formed from individual streams of molten glass discharged from the spout bowl assembly comprising a spout bowl (10, Fig 1) for receiving molten glass including a horizontal tube seating surface 14 having a discharge hole 16 defined therein, a tube 18 for controlling the flow of received molten glass into the discharge opening. The tube 18 has a cylindrical outer wall (38, Fig. 4) and a flat, horizontal bottom surface 20 located vertically above the tube seating surface and vertically locatable between a first position in engagement with the tube seating surface an elevational position a selected vertical distance L1 above the tube seating surface. The spout bowl (10, Fig. 1) additionally includes an annular flow passage 30 extending upwardly from the tube seating surface a selected vertical distance. The annular flow passage 30 and the bottom portion of said tube wall extending said selected distance from the bottom of the tube being selectively configured relative to one another e.g. inclined slope 32, so that during at least a portion of the displacement of said tube from said engaged position to said upper position will change the effective flow area between said tube and said annular flow passage. <IMAGE>