back action

[Dave Nereson]

    List:  Name that piano:  I'm working on a small grand that has been
refinished and the make and serial number were "erased".  It has a true
"back action" for the dampers -- a separate action with action brackets,
rails, underlevers that look almost like "mini-wippens", and two lifter
rods-- one for the underlevers and one for the sostenuto wippens or levers
or jacks or whatever they're called--they're not tabs; they're similar to
the auxiliary levers in wippens of uprights that have lost motion
compensators, pinned into slots in the underside of the underlevers, each
with its own tiny spring, like a micro upright jack spring.  You have to
take the dampers out to remove the thing.  I've seen one before, but never
worked on one.  The upstop rail is part of it.  None of the damper action
remains fastened to the belly rail.  Most of the trapwork is in a recessed
area of the keybed, like on grand players and a few other grands.   The
owner thinks it may be a Brambach.  I can't find any other clues.  Not real
important -- just curious.          --David Nereson, RPT, Denver