Music – Instruments – Wind
Patent
1980-09-23
1982-03-16
Miller, Jr., George H.
Music
Instruments
Wind
G10B 318
Patent
active
043195130
ABSTRACT:
A motor driven tremolo generator adapted to be connected to the pressure regulating air reservoir for a pipe organ is disclosed. The tremolo generator consists of an elongated housing pivotally mounted at one end with a free end being adapted to produce a reciprocating motion for transmission to the pressure regulator. An electric drive motor is mounted at the first end of the housing near the pivot connection, and is connected to drive a rotatable shaft located at the second, or free end of the housing. An eccentrically mounted weight is carried by the shaft so that rotation of the drive motor causes the weight to cause the free end of the housing to oscillate with respect to the pivot point. At a point generally intermediate the pivotal connection and the location of the shaft carrying the concentric weight is a suitable linking mechanism which connects the housing to the center of the bellows, whereby the reciprocating motion of the housing is transmitted to the bellows. This superimposes on the bellows a periodic motion which produces a corresponding variation in the air pressure within the regulator and thereby produces a tremolo effect in the sound of the organ pipes.
REFERENCES:
patent: 1619532 (1927-03-01), Nieman
patent: 2633047 (1953-03-01), Glatter-Gotz
patent: 3018682 (1962-01-01), Imhoff
Fuller Benjamin R.
Miller Jr. George H.
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