Bass drum modulator

Details Bass drum modulator Bass drum modulator

1981-08-03

1983-03-29

Franklin, Lawrence R.

Music

Instruments

Drums

84413, G10D 1302

Patent

active

043779646

ABSTRACT:
A device for controlling the tension of a batter head on a bass drum includes a crossbar that is clamped to an annular ring which secures the drum head to the periphery of a drum shell, an operating arm pivotally mounted on the cross-bar, and tensioning means forming a biased roller assembly having a fulcrum member rotatably secured to the crossbar, a first end of the fulcrum member being adjustably connected to the operating arm by a turnbuckle or the like, a second end of the fulcrum member having rollers and being connected to the crossbar by a bias element so that lateral movement of the operating arm causes the fulcrum member to move the rollers across the drum head and change the tension of the head whereby the frequency of vibration or pitch at the drum head and, therefore, the sound of the drum can be modulated while the drum is being played.

REFERENCES:
patent: 1233881 (1917-07-01), Iucci
patent: 1579893 (1926-04-01), Simpson
patent: 1892223 (1932-12-01), Sansone et al.
patent: 2205593 (1940-06-01), Jeffries
patent: 2572504 (1951-10-01), Meriwether
patent: 3215021 (1965-11-01), Kester, Jr.
patent: 3685389 (1972-08-01), Bemben
patent: 3861265 (1975-01-01), Van der Wyk
patent: 3951032 (1976-04-01), LaPorta et al.
patent: 4228721 (1980-10-01), Hancox

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