Music – Accessories – Tuning devices
Patent
1979-02-06
1981-09-08
Truhe, J. V.
Music
Accessories
Tuning devices
84454, G10G 700
Patent
active
042878063
ABSTRACT:
A method of tensioning a musical drum is disclosed using a device for torquing the tension rods of the drum. The device has a housing having a central aperture and a concentric upper recess. The upper recess has a first partial annular groove and a concentric second annular groove. A shaft assembly is rotatably disposed in the central aperture and the upper recess and is adapted to receive at its lower end means for gripping a tension rod. The shaft assembly has a stop portion disposed in the first partial annular groove for positive rotation of the shaft assembly beyond a predetermined range of rotation of the housing. Biasing means disposed in the second annular groove is connected between the shaft assembly and the housing, for applying torque to a gripped tension rod upon turning the housing within said predetermined range. The drum is tensioned, and thus tuned to pitch, by torquing the drum tension rods to a predetermined torque.
REFERENCES:
patent: 1742869 (1930-01-01), Mirfield
patent: 2013938 (1935-09-01), Williams
patent: 2256478 (1941-09-01), Hill
patent: 3091866 (1963-06-01), Kachergis
patent: 3364734 (1968-01-01), Wilson
patent: 3405590 (1968-10-01), Pease
patent: 3412638 (1968-11-01), Pease
patent: 3667336 (1972-06-01), Itzler
patent: 4056998 (1977-11-01), Rampton
Truhe J. V.
Wade Shelley
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