[Fig. 413]. The whole of this pattern produced by the upper mandrel making 3⅗ revolutions to one of the lathe, producing 18 waves across each other with slide-rest movement for the middle rim.
Fig. 413.
[Fig. 414] illustrates a rosette of nine waves with slide-rest movement, and 3 divisions of the circular movement of the eccentric chuck for each successive line, producing the waved appearance.
Fig. 414.
[Fig. 415] illustrates a rosette of 24 waves with the slide-rest movement.
Fig. 415.
[Fig. 416]. Another illustration of a rosette of 24 waves, rather more sharp than in [Fig. 415], with slide-rest movement and 9 divisions of the circular movement of the eccentric chuck, giving it a pleasing circular waved appearance.