[pianotech] The case of the missing bridle straps!

John Ross jrpiano at bellaliant.net
Sun Mar 11 19:39:15 MDT 2012


Make sure to remove any felt that might be touching or in proximity to the coil of the spring.
In the 70's there were a lot of hammer return springs that corroded through.
I replaced one set, and they went again.
It appears that the felt that was used wasn't 'flushed' properly, and was acidic to the wire, and they corroded.
I removed the felt and the second set worked.
Might have been a Pratt Read action on a Lowery piano, but it was a while ago and I can't be sure.
John Ross,
Windsor, Nova Scotia
On 11-03-2012, at 9:55 PM, pianolover 88 wrote:

> Got a client with a 70's schafer & sons spinet. Looks like new having had little use, but many hammers won't return, and at first I thought the pinning was too tight, and/or just sluggish from non use and excess humidity, but then I noticed that there are NO bridle wires/straps at all. I've seen a few spinets without them before, but not very often. Any advice on getting the hammers to return, short of retro-fitting a whole new set of bridle wires and straps? I thought maybe strengthening the hammer springs and appling protek to all the centers might help as well.  What's funny is that the whips have the little holes where they would go, but they were never installed at the factory. 
> 
> Thanks,
> 
> Terry "UniGeezer" Peterson
> "Over 50, and not '2' Tired!" 
> www.unigeezer.com

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