Sound comparison device for a drum

Details Sound comparison device for a drum Sound comparison device for a drum

1993-11-10

1996-07-09

Chilcot, Jr., Richard E.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

73862451, 73862471, 73159, 73862, 73452, 73863472, 84104, G01L 504, G01D 1302

Patent

active

055334059

ABSTRACT:
A sound comparison device for a drum that has a body that includes a bottom with a periphery. The periphery of the bottom of the body is in contact with the surface of a drum head. A drum head tension measurement element includes a tip which protrudes from the bottom of the body. A spring biases the tip to press against and sink into the drum head to a distance determined by the tension on the drum head. A display is connected with the measurement element for causing the display to display a numerical value Y which corresponds to distance X of the protrusion of the measurement element. The values X and Y are coordinated so that the display displays the value Y=K/X1/2, where K is a constant.

REFERENCES:
patent: 1802685 (1931-04-01), Trier
patent: 3750466 (1973-08-01), Ott et al.
patent: 4116054 (1978-09-01), Howe

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