A toy top that is rotating rapidly about its axisOA(Figure 1) is the simplest gyroscope; the axisOAmay change its direction in space, since its endAis not fixed. In the gyroscopes used in engineering, free rotation of the axis may be achieved by mounting it in the frames (rings) of th...
4198/67. Heading A6S. In a toy spinning top comprising a hollow body, with a transparent upper hood 4 containing a stationary disc 12 rigidly fixed to the pin 2, a plate 5 rotates with the body to drive a gear rigidly connected to a wheel 10 mounted in a housing 11 carrying ...
A toy that uses the principle of the gyroscope.1304615 Spinning toys L J RUSSELL 5 Feb 1970 [5 Feb 1969] 5502/70 Heading A6S A toy comprises two identical circular bodies each having one flat face and an opposite face in which is formed a chamber having a peripheral rim and a central...