capo-hardening vs hardened capo rod

[jolly roger]

Hi Mark,
              I am sure you could order them, but there is a lot to figure
out.   How much to grind off the capo area and still maintain bearing,  how
much to grind off the rear area  and maintaining a workable angle. Will
they fit?  Then, they are de tuned to be specific to their respective
models.  Better off to grind off the bars and install half round case
hardened steel bar, or half round bronze.
Harold Conklin, has probably done more theoretical and empirical research
in this area than any one I know, angles, radii, and hardness.  I highly
acclaimed scientist with many patents to his credit. The system works, and
there is no undue string breakage, if the action and hammers are in good
condition.  

Regards Roger


At 08:44 PM 10/4/01 -0500, you wrote:
>This is interesting Roger. I wonder if Baldwin (once present difficutlies
>subside)would make these units available as a retro-fit, similar to their
>plate suspension system?
>
>Mark Cramer,
>Brandon University
>
>-----Original Message-----
>From: owner-caut@ptg.org [mailto:owner-caut@ptg.org]On Behalf Of jolly
>roger
>Sent: Wednesday, October 03, 2001 11:00 PM
>To: caut@ptg.org
>Subject: Re: capo-hardening vs hardened capo rod
>
>
>
>Hi Ric,
>            This is done on some pianos.  The Baldwin SD and SF10 have
>carefully machined case hardened treble resonators (tm).  This a classic
>example of controlled radius and duplex angles.  The plate has a milled
>face so the units can be screwed to the plate with machined allen bolts.
>Regards Roger
>
>
>At 10:36 PM 10/3/01 -0500, you wrote:
>>I am wondering why not use a simple rod as in some uprights for the string
>>cross over instead of a cast iron capo bar with all the vaguries involved?
>>The rod would offer an exact diameter and precise hardness since it would
>>be added on in the manufactoring process.    ---ric
>>
>>----- Original Message -----
>>From: jolly roger <baldyam@sk.sympatico.ca>
>>To: <caut@ptg.org>
>>Sent: Wednesday, October 03, 2001 8:25 PM
>>Subject: Fwd: Re: capo-hardening?
>>
>>
>>| >
>>| >Hi Ed,
>>| >           The case hardening from the quenching is typically less than
>>| 1mm deep, so it does not take too much dressing to file through it.
>>| >Roger
>>| >
>>| >
>>| >At 10:26 PM 9/23/01 -0500, you wrote:
>>| >>Mark-
>>| >>I've tried burnishing the capo after dressing with file and emery
>>paper. It
>>| >>didn't do any harm, the section sounded clear, but this was just as
>>part of
>>| >>restringing, it was not a piano with zingers.
>>| >>Ed S.
>>| >
>>|
>>
>