I did an ex-Ampico Chickering that had both una-corda and hammer rail lifting. The hammer rail was used when the player system functioned, so that the action was not moved out of alignment with the pneumatic poppets pushing on the key undersides. The una corda functioned when the pedal was depressed during human playing. Most grands with hammer rail lifting were either cheapos, or players. Thump --- Conrad Hoffsommer <hoffsoco@martin.luther.edu> wrote: > At 17:24 10/16/2004 -0400, you wrote: > >Sorry... I meant to say the una corda shifts the > action, but I don't know > >if it also lifts the hammer rest rail (moving the > hammers towards the strings). > > > >Say, aren't grand hammershanks not supposed to > touch the rest rail, > >anyway? (About a shank's diameter above?) > > > >--Cy-- > > > Cy, > > There's theory, and then there's practice. > > If you've got a grand with a > movethehammersclosertothestringslikeanupright > soft pedal, (I've got a Mehlin with that feature) > the hammershanks HAVE to > rest on the rail - at least when the pedal is in > use. > > > > > > > Conrad Hoffsommer, RPT, MPT, CCT, PFP, ACS, CRS. > Decorah, IA > > - Certified Calibration Technician for Bio-powered > Digitally Activated > Lever Action Tone Generation Systems. > - Pianotech Flamesuit Purveyor > - American Curmudgeon Society - Apprentice Member > and Founder > > > > _______________________________________________ > pianotech list info: > https://www.moypiano.com/resources/#archives > _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com
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