Optical metronome
OwnerJuan M. del Castilloinventor
Life of this patent
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Abstract
An optical metronome with a transparent continuous belt carrying vertical markings carried between rollers, supported between rigid transparent plates, and passing behind a translucent sheet of music through which the vertical markings are viewed. The lighting behind the belt is from horizontally extending tube type lamps and reflectors, or flat faced neon lamps which form one of said rigid transparent supporting plates with their flat faces.
Claims4
An optical metronome for use with a sheet of music having lines of notes thereon and having at least translucent light characteristics for the passing of light therethrough comprising a belt allowing light to pass therethrough and having vertical lines thereon extending transversely of said belt,
- rollers of which at least one is driven having said belt mounted thereon,
- horizontal lighting means mounted between said rollers and behind said belt,
- flat holding means for the sheet of music to hold the sheet of music in front of said belt,
- said horizontal lighting means including a plurality of elongated horizontally extending lamps with each of said lamps substantially centered behind one of the lines of notes on said sheet of music.
Dependencies are inferred from the claim text.