Modified piano striking mechanism

Details Modified piano striking mechanism Modified piano striking mechanism

1977-12-05

1979-07-17

Franklin, Lawrence R.

Music

Instruments

Stringed

84240, 84434, 84435, G10C 316

Patent

active

041611292

ABSTRACT:
Disclosed is a modified striking mechanism for use in pianos and related instruments having strings or their equivalent to produce musical notes and keys to select the notes. The mechanism includes a hammer assembly, a lever driving the hammer, coacting gear means for imparting motion to the hammer and features a novel escapement action for use therewith. An alternate embodiment is also disclosed wherein the lever and coacting gear means have been eliminated which allows the jack to engage and drive the hammer directly. Additionally disclosed are improvements including an escapement action adapted for use with conventional piano striking mechanisms, a novel damper assembly, a mechanism for activation by the soft pedal of the piano, a tension adjustment mechanism for varying the amount of force necessary to strike a key, and novel balance rail and capstan lever assemblies.

REFERENCES:
patent: 541905 (1895-07-01), Wagner
patent: 617411 (1899-01-01), Willeford
patent: 687607 (1901-11-01), Darley
patent: 1826848 (1931-10-01), Vietor
patent: 2550153 (1951-04-01), Ketterman

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