Pianotech

Hey all,
Anyone have any idea what an auxilary vibrator is? Keep it clean please. They look cool in the drawing.
I was unable to find the patents. Perhaps someone out there is better at patent searches than me. The dates are on the drawing.
Before you Pooh pooh this as junk science from the past , i would kindly remind you that J.F. Conover was no joke, he was a highly regarded scale draughtsman who was personally trained by Albert Weber. He designed all of the Cable pianos and kept his designs close to the Mason and Hamlins since they owed that company a short while. So there must be some logic behind the auxilary vibrator.
Thanks.
-chris


------------------------------
I don't always play the piano, but when i do, I prefer my own.
chernobieffpiano.com
chrisppff@gmail.com
865-986-7720
------------------------------

looks like its trying to deal with the "end of bridge" phenomenon...trying to make the lowest functional note on the bridges actually one or two notes from the end of the bridge.

------------------------------
Jim Ialeggio
grandpianosolutions.com
Shirley, MA
978 425-9026
------------------------------

Original Message:
Sent: 08-30-2018 19:52
From: Chris Chernobieff
Subject: Conover Duplex Bridges and Auxilary Vibrators

Hey all,
Anyone have any idea what an auxilary vibrator is? Keep it clean please. They look cool in the drawing.
I was unable to find the patents. Perhaps someone out there is better at patent searches than me. The dates are on the drawing.
Before you Pooh pooh this as junk science from the past , i would kindly remind you that J.F. Conover was no joke, he was a highly regarded scale draughtsman who was personally trained by Albert Weber. He designed all of the Cable pianos and kept his designs close to the Mason and Hamlins since they owed that company a short while. So there must be some logic behind the auxilary vibrator.
Thanks.
-chris


------------------------------
I don't always play the piano, but when i do, I prefer my own.
chernobieffpiano.com
chrisppff@gmail.com
865-986-7720
------------------------------

------------------------------
Peter Grey
Stratham NH
603-686-2395
pianodoctor57@gmail.com
------------------------------

Original Message:
Sent: 08-30-2018 20:10
From: Jim Ialeggio
Subject: Conover Duplex Bridges and Auxilary Vibrators

looks like its trying to deal with the "end of bridge" phenomenon...trying to make the lowest functional note on the bridges actually one or two notes from the end of the bridge.

------------------------------
Jim Ialeggio
grandpianosolutions.com
Shirley, MA
978 425-9026

Original Message:
Sent: 08-30-2018 19:52
From: Chris Chernobieff
Subject: Conover Duplex Bridges and Auxilary Vibrators

Hey all,
Anyone have any idea what an auxilary vibrator is? Keep it clean please. They look cool in the drawing.
I was unable to find the patents. Perhaps someone out there is better at patent searches than me. The dates are on the drawing.
Before you Pooh pooh this as junk science from the past , i would kindly remind you that J.F. Conover was no joke, he was a highly regarded scale draughtsman who was personally trained by Albert Weber. He designed all of the Cable pianos and kept his designs close to the Mason and Hamlins since they owed that company a short while. So there must be some logic behind the auxilary vibrator.
Thanks.
-chris


------------------------------
I don't always play the piano, but when i do, I prefer my own.
chernobieffpiano.com
chrisppff@gmail.com
865-986-7720
------------------------------