Voice scribe

Details Voice scribe Voice scribe

1992-02-20

1994-05-17

Gellner, Michael L.

Music

Accessories

Tuning devices

84312R, G10G 700

Patent

active

053118057

ABSTRACT:
A power-driven voicing tool simultaneously inserts into and withdraws from the felt of a piano hammer, needles to raise a nap thereon. A row of four needles is driven by two circularly moved cam surfaces on the ends of an assembly rotatable by a variable speed electric motor through a flexible drive cable. One cam surface lies outside the other and drives the external needles of the row of needles; the other drives the internal needles. The slopes of the two cam surfaces are different and one-hundred-and eighty degrees out-of-phase with each other and effect different movements in adjacent needles, one needle moving outward while the other moves inward. A process of inserting a needle while withdrawing an adjacent needle in the felt of the piano hammer, is practiced.

REFERENCES:
patent: 465505 (1891-12-01), Weser
patent: 731535 (1903-06-01), Bell
patent: 738877 (1903-09-01), Behringer
patent: 1454727 (1923-05-01), Crissey
patent: 3537639 (1970-11-01), Ruger

Affiliated with

Also associated with

Rating

Voice scribe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voice scribe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice scribe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-869678