[pianotech] Photo Duo-Art Steamboat Pump

[John Ross]

What, me remember math from away back then. :-)
You are correct of course, the minimal amount of swell in the metal would be negligeable.
I guess I was just being lazy, hoping someone might have the exact info.
Thank you.
John Ross
Windsor, Nova Scotia
On 2013-03-01, at 10:49 PM, "Greg Newell" <gnewell at ameritech.net> wrote:

> John,
>             Seems like you have at least one good leg on each of the pulleys from which to determine radius. Radius times 2 plus hub plus outer thickness of pulley, no?
>  
>  
> Greg Newell
> Greg's Piano Forte
> 216-226-3791 (office)
> 216-470-8634 (mobile)
> www.gregspianoforte.com
> gpf at ameritech.net
>  
>  
>  
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of John Ross
> Sent: Friday, March 01, 2013 9:15 PM
> To: Pianotech List
> Subject: [pianotech] Photo Duo-Art Steamboat Pump
>  
> I am looking for the pulley sizes for this pump.
> One is distorted and the other has disintegrated.
> <image001.jpg>
> It was suggested to me to do away with the double and quadruple pulleys and use a 1/2” V belt.
> I don’t want to change the ratios so I am hoping someone can give me the dimensions that the replacement pulleys should be.
> Thank you.
> John Ross
> Windsor, Nova Scotia


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