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jazzhorn04
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rhatheway
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 Posted: Thu May 02, 2024 10:51 am Post subject: Re: What is this top cap style called? |
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Working on getting my chops back...
“Without music, life would be a mistake” ― Friedrich Nietzsche
1958 Conn Director 14A
1968 Getzen Eterna Severinsen
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Last edited by rhatheway on Thu May 02, 2024 11:34 am; edited 2 times in total |
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jazzhorn04
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| Posted: Thu May 02, 2024 10:58 am Post subject: Re: What is this top cap style called? |
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| rhatheway wrote: |
Are you talking about the valve buttons or finger buttons (the things on top of the valve stems that you place your fingers on to push down)?
I ordered new ones just like that for my Getzen from Mouthpiece Express (<url>https://mouthpieceexpress.com/catalog/advanced_search_result.php?search_in_description=1&keywords=finger+buttons</url>), but you can find them almost anyplace (Edwards, Allied Supply, Amazon, Ebay, etc.). |
The caps on the top of the actual valve block. |
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Andy Cooper
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| Posted: Thu May 02, 2024 11:41 am Post subject: |
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| I guess another question would be - when did they stop making them this way. Check old Conn, Holton, and King catalogs - they were all set up this way placing the felt or cork under the finger button. |
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JayKosta
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| Posted: Thu May 02, 2024 12:03 pm Post subject: Re: What is this top cap style called? |
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| jazzhorn04 wrote: | | I've been wanting this style of top cap lately ... |
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Be careful about the precise dimensions, because the amount of down-stroke valve travel is dependent on the height of the top of the cap - and the felts / spacers placed on the underside of the valve button.
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yourbrass
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| Posted: Thu May 02, 2024 6:09 pm Post subject: |
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It's an old-fashioned top-knot style cap. Nothing mysterious, it's out of fashion. It may come back.
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MrOlds
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| Posted: Thu May 02, 2024 6:17 pm Post subject: |
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| I imagine a shop with a quality lathe can cut down the outer part of a standard valve cap to make them. |
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Riojazz
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| Posted: Thu May 02, 2024 6:49 pm Post subject: |
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My Schagerl rotary, new a couple of years ago, has exactly that. I have no idea if it's required/functional or what, but at least it's modern.
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Divitt Trumpets
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JayKosta
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| Posted: Fri May 03, 2024 4:48 am Post subject: |
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| Riojazz wrote: | | My Schagerl rotary, new a couple of years ago, has exactly that. ... |
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With rotary valves there are 2 true bearings that position and align the rotor body. The rotor has an arbor / axle at the top and bottom, and the caps have a pivot hole to accept the arbor - the actual lubrication for the movement of the rotor is at the arbor / pivot location. Air sealing around the outer section of the rotor and casing can be obtained with water / condensation. Rotary valves can become sluggish if oil or grease migrates onto the outer section of the rotor.
Oiling of the pivots is done by a removable cap, and by carefully dripping a little oil into the seam at the non-removable cap and the 'swing arm'.
_________________
Most Important Note ? - the next one !
KNOW (see) what the next note is BEFORE you have to play it.
PLAY the next note 'on time' and 'in rhythm'.
Oh ya, watch the conductor - they set what is 'on time'. |
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Divitt Trumpets
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| Posted: Fri May 03, 2024 6:40 pm Post subject: |
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| JayKosta wrote: | | Riojazz wrote: | | My Schagerl rotary, new a couple of years ago, has exactly that. ... |
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With rotary valves there are 2 true bearings that position and align the rotor body. The rotor has an arbor / axle at the top and bottom, and the caps have a pivot hole to accept the arbor - the actual lubrication for the movement of the rotor is at the arbor / pivot location. Air sealing around the outer section of the rotor and casing can be obtained with water / condensation. Rotary valves can become sluggish if oil or grease migrates onto the outer section of the rotor.
Oiling of the pivots is done by a removable cap, and by carefully dripping a little oil into the seam at the non-removable cap and the 'swing arm'. |
Bearing oil should be applied to the spindle bearings and rotor oil should be applied to the core of the rotor.
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