US PATENT SUBCLASS 84 / 209
.~.~.~ Bridges

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
173  DF  .~ Stringed {10}
174  DF  .~.~ Pianos {19}
209.~.~.~ Bridges {5}
210  DF  .~.~.~.~> Inverted
211  DF  .~.~.~.~> Agraffes
212  DF  .~.~.~.~> On sounding board {1}
214  DF  .~.~.~.~> String clamps or holders
215  DF  .~.~.~.~> Depressing bars

DEFINITION

Classification: 84/209

Patents for bridges not belonging in the subclasses below.

(1) Note. The vibrating length of the string is determined by its bearing on the two bridges, one on the sounding-board and the other usually on the wrest-plank or on the string-plate. If on the plate, it is sometimes distinguished as the "scale rib". If the two bridges are not on the same side of the string, the one near the hammer-line may be called "inverted". Often the hammer-stroke tends to lift the string from the bridge on the plank, so in some early pianos a sort of screw-eye called an "a gaffe" was used, while in later times many sorts of clamps or holders have been devised to hold the strings on their bridges, and confusing names have been given them.