Drum in music box

Details Drum in music box Drum in music box

1983-01-21

1986-02-18

Adams, Russell E.

Music

Instruments

Automatic

G10F 106

Patent

active

045705240

ABSTRACT:
A drum for a music box comprises a cylindrical drum body, a pair of end plates fixed to end faces of said drum body, one of the end plate having an center opening, and an external output shaft (14) positioned in the opening and projecting outside of the cylindrical drum body. A diameter of the opening is much greater than that of the external output shaft. The drum includes portions for engaging with the external output shaft for preventing axial and rotational displacement between the external output shaft and the end plates. The engaging portions are provided within the cylindrical drum body.

REFERENCES:
patent: 3688626 (1972-09-01), Cotey
patent: 4197778 (1980-04-01), Komatsu et al.

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