To rotate the molten metal at the speed as constant as possible to draw a plurality of small loops by unifying a plurality of generated rotating forces in the direction in which a linear motor is extended.
A rotating device is provided with a first linear motor (1E) having a core and a plurality of electric coils (W1-E12), and a second linear motor (1L) opposite to the first motor (1E) with conductive bodies (MM of M1, M2, M3) in-between, and the AC current to give the thrust to the conductive bodies in the (y) direction in which the motors are arranged is applied to the first motor (1E). Energizing means (20F1, E1-E12, L1-L12) to impress the AC current having the phase shift of substantially 180° to the AC current to be impressed to electric coils (E1, E2) of the first motor (1E) to electric coils (L3, L4) which are positioned in the point symmetric manner with the center of revolution of the conductive body (MM of M1) relative to the electric coil (E1, E2) of the first motor (1E) are provided on the electric coils (L1-L12) of the second motor (1L).
HARADA HIROSHI
TAKAHASHI KEIICHI
ANZAI SHIGENAO
