Music – Instruments – Drums
Patent
1977-07-13
1981-11-17
Franklin, Lawrence R.
Music
Instruments
Drums
84421, G10D 1302
Patent
active
043004377
ABSTRACT:
The complete drum comprises two, axially-separable, generally cylindrical sections, which are open, inwardly, toward each other, each of these two sections having but one playing head, so that the two heads are disposed respectively at the outer ends of the cylindrical assembly. When the open ends of these two basic sections are axially spaced-apart to provide an annular gap between them, the space within said sections communicates with the ambient air, through said gap, substantially uniformly around the periphery of the drum. This construction, with gap, is intended to provide any desired increase in volume, and a great variety of tonal modifications.
Means are provided for adjustably varying the size of the gap, or for closing it altogether; whereby the volume, pitch, dynamics, and tonal characteristics of the drum may be varied. This may be done by using adjustable holding means, and/or by using perforate or imperforate cylindrical filler pieces.
REFERENCES:
patent: 578198 (1897-03-01), Boulanger
patent: 663854 (1900-12-01), Boulanger
patent: 673633 (1901-05-01), Boulanger
patent: 1420233 (1922-06-01), Baldwin et al.
patent: 3215021 (1965-11-01), Kester
patent: 3981220 (1976-09-01), Clark
Hinger Fred D.
Hinger William D.
Franklin Lawrence R.
Hinger Touch-Tone Corp.
Synnestvedt Kenneth P.
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