[TheForge] Krause/Nazel type air hammer

Tue Dec 3 20:10:04 2002

The difference is that the rectangle opening has a linear change and the
round hole has a progressive change for the same amount of movement of the
handle.

Darrell

----- Original Message -----
From: "Larry and Pat Brown" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 03, 2002 3:34 PM
Subject: RE: [TheForge] Krause/Nazel type air hammer

> I think the timing of the opening valves in relation to each other would
be
> more important than the shape. Why would the shape make that much of a
> difference? Wouldn't the air flow be more important than the shape of a
> small crescent or small rectangle?
> L Brown
>
> At 12:12 PM 12/3/2002 -0500, you wrote:
> >andy,
> >
> >i thought of that too. in fact i bought 2 three way ball valves from
> >mcmaster carr. i still think it might work but i was dissuaded by
someone.
> >the problem (they said) was that the valves don't open progressively.
that
> >is because the opening in the valve isn't a straight sided opening like a
> >square or rectangle. it starts opening with just a little crescent and
> >then goes from there. you can visualize better than i can describe (i
hope).
>
>
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