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PostPosted: Fri Jun 28, 2019 12:41 pm 
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Recently got a new Clare two-piece whistle. I wanted to remove the head to clean out some extraneous bits of metal (in the tube) and plastic (in the head). For those who have removed the head, what technique did you use? This one doesn't seem to want to move with simple twisting by hand.

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Steve

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PostPosted: Fri Jun 28, 2019 12:45 pm 
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'Throw' it a few times into the tube of a C whistle. That will do it.

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PostPosted: Fri Jun 28, 2019 2:36 pm 
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Yes that worked for me too, but, I don't think my Clare head was fastened too tight to begin with. Twisting by hand did not work but gentle dropping into the C tube did work. I kind of like the Clare whistle especially for the current price.


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PostPosted: Fri Jun 28, 2019 3:59 pm 
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Well, that ain't working for me. Must be some new glue that Mr. La Bas is using. If I keep it up I'll soon have a C# instead of a C whistle as the receptor....

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PostPosted: Sat Jun 29, 2019 12:45 am 
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That's odd. I have yet to meet a whistle that wouldn't submit to perhaps three or four attempts at that treatment.

Time to bring in the blowtorches?

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PostPosted: Sat Jun 29, 2019 3:12 am 
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Could it just be the shorter "throw" and the smaller tube mass of a 2 part whistle (only using the top section I would have thought).

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PostPosted: Sat Jun 29, 2019 3:28 am 
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Yes, I thought that as well. Or considered it at least. For it to work there needs to be a certain amount of force and the short distance and lesser weight of the half tube will impact that.

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PostPosted: Sat Jun 29, 2019 6:15 am 
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Potential thesis material ?

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PostPosted: Sat Jun 29, 2019 6:04 pm 
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Steve Bliven wrote:
Potential thesis material ?

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Steve


Newton's second law of motion 332 years late.

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PostPosted: Sun Jun 30, 2019 1:07 am 
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My suggestion would be to contact Clare Whistle for advice. They are on Facebook. However, I would note several points. Sadly, David Le Bas is no longer with us. His death notice can be found here: https://notices.irishtimes.com/death/le ... d/41222542 . I am not sure who is currently the acting principal of the manufacturing concern. It may be his widow, Olive.
For myself, I am using beeswax and petroleum jelly to allow for some adjustment of the joint to give a little tuning scope. I have not attempted to break the bond of the whistle head itself.

Bob

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PostPosted: Mon Jul 01, 2019 10:48 am 
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an seanduine wrote:
Sadly, David Le Bas is no longer with us. His death notice can be found here: https://notices.irishtimes.com/death/le ... d/41222542 . I am not sure who is currently the acting principal of the manufacturing concern. It may be his widow, Olive.

Sorry to hear of Mr. Le Bas's passing. The Clare Whistle web site hasn't been updated and still lists him as living in Dublin. Hence the confusion on my part.
an seanduine wrote:
For myself, I am using beeswax and petroleum jelly to allow for some adjustment of the joint to give a little tuning scope. I have not attempted to break the bond of the whistle head itself.

To get to A=440, I need to move the head about 3/16". I can do that at the joint but it begins to get close to where the parts will separate. I figure there is more scope to move the head—if only I could move it. I sent a note to the company and am awaiting a response.

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Steve

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PostPosted: Mon Jul 01, 2019 4:11 pm 
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For those in future generations reading this thread seeking enlightenment, none here (yet).

Got a response from Olive Le Bas at Clare Whistles who offered the following, "We don't use glue to fit the heads, they are just slipped on to the brass barrel.

"However, some fit a little tighter than others, and don't adjust too easily. Usually running it under hot water expands it enough to be adjusted. You could try it again until the plastic mouthpiece becomes quite warm and try to move it then."

Didn't work the first couple of times. I'm wondering whether heat just makes both the head and the barrel expand a bit, getting things even tighter. So I'll try the refrigerator first and then maybe the freezer. I'll probably end up ordering another whistle when I destroy the head on this one. Live and learn.

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Steve

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PostPosted: Tue Jul 02, 2019 9:51 am 
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Steve Bliven wrote:
For those in future generations reading this thread seeking enlightenment, none here (yet).

Got a response from Olive Le Bas at Clare Whistles who offered the following, "We don't use glue to fit the heads, they are just slipped on to the brass barrel.

"However, some fit a little tighter than others, and don't adjust too easily. Usually running it under hot water expands it enough to be adjusted. You could try it again until the plastic mouthpiece becomes quite warm and try to move it then."

Didn't work the first couple of times. I'm wondering whether heat just makes both the head and the barrel expand a bit, getting things even tighter. So I'll try the refrigerator first and then maybe the freezer. I'll probably end up ordering another whistle when I destroy the head on this one. Live and learn.

Best wishes.

Steve



If you look it up (as I did once), ABS plastic expands more than brass when it is heated. Therefore, no, the head wouldn't become tighter because of the expansion of the brass.

Edited to add:

Here's the post where I mentioned it.

viewtopic.php?f=1&t=108039#p1213482

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PostPosted: Tue Jul 02, 2019 10:42 am 
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I was wondering whether the expansion of the plastic head would make it grip the tube more tightly...

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Steve

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PostPosted: Tue Jul 02, 2019 1:06 pm 
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Steve Bliven wrote:
I was wondering whether the expansion of the plastic head would make it grip the tube more tightly...

Best wishes.

Steve


It's a common misconception, but, no, it doesn't work like that. When you heat a ring of solid brass or ABS plastic, the diameter increases. The diameter of the ABS plastic ring/sleeve will increase when heated, and since it has a higher expansion coefficient (4 to 5 times) than brass, its grip on the brass tube will lessen.

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