Figure 3: Schematic Showing The Advantages Of A Tapered Sprue Over A Straight-sided Sprue. (a) Natural Flow Of A Free-falling Liquid. (b) Air Aspiration Induced By Liquid Flow In A Straight-sided Sprue. (c) Liquid Flow In A Tapered Sprue (Sylvia J G, 1972)

Figure 3: Schematic Showing The Advantages Of A Tapered Sprue Over A Straight-sided Sprue. (a) Natural Flow Of A Free-falling Liquid. (b) Air Aspiration Induced By Liquid Flow In A Straight-sided Sprue. (c) Liquid Flow In A Tapered Sprue (Sylvia J G, 1972)

Figure 3: Schematic Showing The Advantages Of A Tapered Sprue Over A Straight-sided Sprue. (a) Natural Flow Of A Free-falling Liquid. (b) Air Aspiration Induced By Liquid Flow In A Straight-sided Sprue. (c) Liquid Flow In A Tapered Sprue (Sylvia J G, 1972)

Figure 3: Schematic Showing The Advantages Of A Tapered Sprue Over A Straight-sided Sprue. (a) Natural Flow Of A Free-falling Liquid. (b) Air Aspiration Induced By Liquid Flow In A Straight-sided Sprue. (c) Liquid Flow In A Tapered Sprue (Sylvia J G, 1972)