Cbs Corporation

Harold B Rhodes

James B Murphy

Steven J Woodyard

An electromechanical piano of the type incorporating asymmetrical tuning forks. To increase vastly the dwell of the forks in the high-pitched range of the piano, a fork-mounting construction is employed wherein only a single screw is associated with each fork. Elastomeric means are provided around each screw and also between opposed edge surfaces of adjacent forks, whereby to prevent rotation of each fork about the axis of its associated mounting screw.

Tuning fork mounting assembly in electromechanical pianos

Harp cover

An electric piano has a complete player actuated piano voice of which harmonics are basically controlled by a tuning fork that is struck by the piano key. The piano is also provided with an electronically generated voice of which harmonics are electronically generated. To better enable the two voices to be played simultaneously by striking a single piano key, the amplitude envelope of the electromechanically generated piano voice is imposed upon the electronically generated voice which is gated and amplitude modulated so as to be heard in precise synchronization with a piano note produced by the instrument player. Linearity of modulation is extended to low piano voice amplitudes by use of modulating and gating diodes in oppositely poled feedback paths of an operational amplifier.

Multiple voice electric piano and method

An action is described for musical instruments of the piano type. Means are included for braking and restraining each hammer of the action to prevent bouncing, rebounding, or other undesired movement, when the key is depressed and the hammer is positioned at the escapement distance from the tone generating tine and also when the key is released and the hammer is at rest position. The braking and restraining means move arcuately in cooperation with the key to exert a wedging force against a portion of the head of the hammer to brake and restrain it in the desired positions.

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La Habra, CA, United States of America

Harold B Rhodes