Spinning top and driving device for actuating the same

Details Spinning top and driving device for actuating the same Spinning top and driving device for actuating the same

1988-03-14

1990-01-02

Hafer, Robert A.

Amusement devices: toys

Rotating or having visible rotating portion

Top

446256, 446262, 446264, A63H 100

Patent

active

048910317

ABSTRACT:
A driving device for initiating and maintaining a spinning top in a continuous movement of rotation and precession. The driving device is made of a shaft adapted to axially rotate in a tube on which is concentrically fixed a rim. A top is hingely connected by its central post to the end of the shaft adjacent the rim. The post is able to rotate around the rim through a ball-bearing joint and the friction between the post and the rim causes the top to spin around the rim. By momentarily braking or changing the direction of the shaft with a manual contact on the shaft, it is possible to create a precession movement to the spinning top which will raise above the rim.

REFERENCES:
patent: 188095 (1877-03-01), Beesley
patent: 484960 (1892-10-01), Hardy
patent: 635020 (1899-10-01), Kornick
patent: 673831 (1901-05-01), Cook
patent: 719276 (1903-01-01), Thornburg
patent: 1922990 (1933-08-01), Thompson
patent: 2039819 (1936-05-01), Marx
patent: 2762162 (1956-09-01), Doljan
patent: 2794294 (1957-06-01), Frangos
patent: 3365835 (1968-01-01), Grow

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