[TheForge] Re: Krause/Nazel type air hammer

Tue Dec 3 22:11:01 2002

----- Original Message -----
From: "Mike Spencer" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 03, 2002 5:27 PM
Subject: [TheForge] Re: Krause/Nazel type air hammer

>

> That makes sense.  But then one should be able to hook the treadle to
> eccentric gears or the equivalent that compensate by offsetting the
> non-linearity of the valve opening shape.  I've never seen such gears
> that I recall (unless it was in the Boston Science Museum) but I've
> seen pictures of them in old books on engineering mechanisms -- late
> 19th century stuff.  Anybody know where you could salvage such gears?
> I think you could even make them just by re-boring ordianry gears.

> - Mike
>
> --
> Michael Spencer                  Nova Scotia, Canada
>
> [email protected]
> http://home.tallships.ca/mspencer/
>

Like the eccentric pullies on a compound bow?

As to machining the valves. Isn't there somebody on the list with a couple
CNC machines who might like to make a buck or two? Once the drawing(s)
is/are made and debugged it's stored on disc. From then on setup is mostly a
matter of chucking up the stock and changing cutters, etc.

Frosty
------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.