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RotaryLuke
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Rotary valves question
Jan 19th, 2021 at 10:35am
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Hi, I am looking for infos about the maker of these valves. My opinion ranges from very old to just last century crap.
What's your opinion? Thanks.

  
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kenton
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Re: Rotary valves question
Reply #1 - Jan 19th, 2021 at 1:49pm
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Let's try to clarify your question.  Are you asking for the identity of the maker? The quality of the maker? The quality of that style of valve? The quality of that particular set of valves?
  
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RotaryLuke
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Re: Rotary valves question
Reply #2 - Jan 19th, 2021 at 3:14pm
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kenton wrote on Jan 19th, 2021 at 1:49pm:
Let's try to clarify your question.  Are you asking for the identity of the maker? The quality of the maker? The quality of that style of valve? The quality of that particular set of valves?


You are correct, Kenton. I apologize for being not clear at all. I came across this instrument, no marks on it, but I was a bit attracted by the rotary valves. In some way the entire valves look quite old, way older than a XX century instrument. But maybe I am wrong. So I am asking if someone has some knowledge about who can be the maker. Thanks. 
  
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kenton
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Re: Rotary valves question
Reply #3 - Jan 20th, 2021 at 4:53am
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Maybe seeing what instrument they are on, it might be some clues as to the age and nature of the horn.  Also, another angle on the valve assembly.  In looking at the picture, I can't quite figure out how they operate.  They look like they would bind when pressed, and I'm sure that is not really the case.
  
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RotaryLuke
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Re: Rotary valves question
Reply #4 - Jan 21st, 2021 at 7:12am
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Sure, shortly I will add more detailed pics.
  
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gsmonks
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Re: Rotary valves question
Reply #5 - Sep 9th, 2021 at 3:43am
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That looks like an early example of the type of mechanism that later replaced clocksprings. Clockspring valves were around until the 70's, but this type of mechanism predates that by a lot.

You might want to show this to Arnold Myers at the University of Edinburgh. He's the curator or the musical instrument museum. This might interest him.

a.myers@ed.ac.uk
  

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