Multi-tone percussion instrument

Details Multi-tone percussion instrument Multi-tone percussion instrument

1979-05-10

1981-03-17

Franklin, Lawrence R.

Music

Instruments

Drums

G10D 1302

Patent

active

042560063

ABSTRACT:
A multitone percussion instrument capable of producing a variety of drum tones from a single vellum (2) mounted on a shell portion (1) is described. Tone separation along the expanse of vellum of the drum is effected by providing a rim (3) comprising a compound warp to which the vellum is affixed. In a preferred embodiment, the compound warp comprises a section of a hyperbolic paraboloid defined by straight line boundaries.

REFERENCES:
patent: 913796 (1909-03-01), Wolff
patent: 4111094 (1978-09-01), Broser
Thomas, George B., Jr., "Calculus And Analytic Geometry," Addison-Wesley Publishing Company, Inc., Reading, Mass., U.S.A. and London, England, pp. 649-650, 2-1961.

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