Hi, David, At 08:39 AM 11/28/2011, you wrote: >Hi Jack Et al, > >Have you or anyone else seen the key levelling system that utilizes >a long screw that goes down through the key button/key onto the back >of the balance rail punching? Turning the screw in or out makes the >key go up or down. I'd love to get a photograph of this for a class >I'm developing: "Off Center Balance Rail Bearings" for PTG Institute >2012 at Bellevue: There are actually at least two patents around this kind of system; one from the late-19th/early-20th Cent, and one much more recent. I won't have access to those data until later next week, but will be happy to look them up as soon as I have time. Kind regards. Horace >Regards, > >David Stanwood > >>Hello to All, > >> This leveling system was produced by J. French just >>before P. A. Starch bought them in the late 50s. When >>Starck was bought by J. P.Seeburg. in the mid 60s was >>when this system went into production. > >> It was indeed presented as the best leveling device >>ever, by the " Seeburg " brochure. > >> Its weakness was that after you leveled the key you >>then you often had to adjust the standard capstan.. > >> At first I really liked the idea. Then actually using them >> was not so good. > >> Of course the very best " leveling device" ever, >>was in the " Bowen Henderson" grand of Boston. >>It was a dream to work with. > >> Regards, >> Jack Wyatt >> Dallas, Chapter
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