---------------------- multipart/alternative attachment Perhaps a point of interest. I'm currently putting boards in 2 Stwy Bs. One is a 20's piano & the other an 1895ish. Any one who has looked at the bottom of the B has seen no cut off bar but some amount of ribs that are whittled done significantly in the bass corner with a flat maple stick running between them. It has printed on it pulsator bar. patent 1878. No one has ever been able to explain what the thing is for & in my mind promotes a significant loss of stiffness. I've always wondered what it was really for but in my mind it is useless. for any reason I can see or hear. Oddly the older board had 14 ribs with the extra one in the treble end, It had only 3 whittled down ribs & appeared to me from a design point of view the stiffer idea. The 20's one had 5!! ribs whittled down with only 13 ribs total. I suspect this board has been flat a really looonngg time. The 1911 B & it's board I just sold & delivered was made without the whittled down ribs. I ran the ribs full length to the bass corner with the usual scallop. I have to say the sound was as good as any I've ever heard & am convinced the extra crown support is far more important than the devices purpose which is unknown & apparently unheard. Cheers Dale ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/3f/18/af/cd/attachment.htm ---------------------- multipart/alternative attachment--
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