Phillip Ford wrote: >I believe that I've come across the patent for the key leveling device that >was mentioned a few days ago. The device is essentially a giant drop screw >through the key just in front of the balance rail pin. The head of the >screw rests on the balance rail and is turned to level the key. > >Patent 1,592,778 to L. Perry for Ludwig & Co. on July 13, 1926. > Phil, And I believe it was a late 20s Ludwig grand I tuned which had that feature. It's been 5 years since last tuning so I may see it again soon. I might level the keys while I'm at it just to say that I did the whole job in 5 minutes. Tom Cole
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