Sideways rotors

[Hobart]

I was looking through Facebook, and there as an early Schargel with a rotary valve mounted with the cap facing down and the linkage coming from the top.

Is there a practical reason more manufacturers don't do this? I'm not sure how difficult it is to manufacture, but I feel like it would be a good alternative to adding extra bends to the rotor tubing in certain cases.

[Elow]

Pics would be helpful, but sounds like the same concept as an axial

Edit: Oh, i thought "with the cap facing down and the linkage coming from the top" meant actually facing down.

[Burgerbob]

Germans like to do this-

https://www.trombonechat.com/viewtopic.php?f=13&t=18365

You are making the instrument wider, linkage may be harder to route as well. Not sure why I would choose this over the "normal" way, especially with modern larger valves.

[Bonearzt]

Pics would be helpful, but sounds like the same concept as an axial

More like Hagmann

[hornbuilder]

These are standard rotor valves. The valve ports are arranged in an "H" configuration.

[UncleJenny]

To my knowledge in the beginning all Schagerl trombones had Hagmann valves. I had the opportunity to try one of their first bass trombones back in 2002/2003. Here’s a pic of it:

[hornbuilder]

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[hornbuilder]

The trombone in question in the original post, as well.as those by Pfretzschner and ThroJa are rotor valves in an H configuration.

[Bonearzt]

Interesting, but could be tough to work on!

[tbonesullivan]

Reminds me of the "Walzenvalve" German tubas which have the rotors directly below the paddles, instead of on the other side of the horn. I mean there's no real rule regarding which direction the rotor has to face.

[MStarke]

I cannot judge if the valve configuration for the Pretzschner and Throja trombones (and maybe others that are similar) is more difficult for technicians to work on. I can only say that all that I have seen and played myself had very well functioning and quiet valves and valve linkages. Of course this is not only a question of the configuration, but simply the build quality.