Fw: unduplexed Steinway

[Pianoman]

I wonder if there is a patent # for this change  and how long it took them 
to go back to duplex bars.
James Grebe   Piano Tuning & Repair   Member of Master Piano Technicians.
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----- Original Message ----- 
From: <Erwinspiano at aol.com>
To: <pianotech at ptg.org>
Sent: Friday, June 29, 2007 8:36 AM
Subject: Re: Fw: unduplexed Steinway


>
> James
>  I've rebuilt many of these & the stringer always loves  not having to
> wrestle with the duplexes. As to Steinways reasoning ....Who 
> knows...there all
> dead now.  It was probably a manufacturing  decision.  Perhaps they even 
> argued
> among them selves as to the benefits of  the rear duplex...OH MY!!
>  Probably made for ten years or so, not that it's  important
>   Dale
>
>>  This morning I tuned what appears to be a Steinway (0).  This is from
>> 124xxx
>> serial number (1907) that has no separate duplex bars  in the back scale.
>> Instead there is a curved raised ridge where the  duplex bars would have
>> been.  I have seen probably about 6 of  these in my life.  How long did
>> these models exist and what was  Steinway's reason for this change during
>> this era?
>>  Thanks,
>> James
>
>
>
>
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