Abstract: A continuous preparation method of an amino resin particulate having a maximum particle size of 40 .mu.m or less and an average particle size of from 5 to 15 .mu.m is described. The method comprises the steps of reacting amino compounds with aldehydes in the presence of an acid catalyst in an aqueous solution to form a solid product and classifying said solid product in the form of a slurry with a combination of at least two grinders and at least two classifiers.

Abstract: A shuttle wheel toy comprising a rotary wheel having a magnetized rotation shaft extending through a central portion of the wheel to have ends protruded beyond side walls of the wheel and mounted across a pair of substantially parallel arranged rails secured at one end respectively thereof in a grip, which may be gripped by a hand to axially sway the rails to thereby let the rotary wheel rotate and run on the rails which provide for a path of reciprocation to the wheel. Through a battery housed in the grip and the rails functioning as a positive and a negative electrodes, an illumination element housed in the rotary wheel can be energized to light.