[TheForge] propane forge burner book

Fri Feb 27 10:07:00 2004

Back when I started, I made me a variable speed blower.  I had a brush =
ac/dc
motor (like a drill motor) which will work on a speed control or lamp
dimmer.  I had 2 dimmers.  I had one lamp dimmer set for full tilt =
boogie
heat it up quick.  I had the other lamp dimmer set to keep the fire =
warm,
but not too warm as to use up excessive coal.  I had on the box a single
pole double throw spring loaded pushbutton switch.  Over the switch was =
an
aluminum plate with a hinge.

So, when I picked up my hammer from the plate, the switch selected the
slower blowing setting.  When I was finished hammering, I laid the =
hammer
back down on the plate, and the switch automatically selected full tilt
boogie.

This is similar (in theory) to the hang up device for torches.

However, in the world of coal, this may be overkill and not really
necessary, as Jeff discovered.  Still, 10% is a lot of coal, over time.  =
And
this type of device is automatic, so little thinking is necessary, and =
no
extra steps are added to the work once it is installed.  The plate and
switch can be remote mounted to most anywhere.

If anyone is interested, I can provide a schematic and other info.

-----Original Message-----
From: [email protected] =
[mailto:[email protected]]
On Behalf Of Dan Tull
Sent: Friday, February 27, 2004 9:51 AM
To: [email protected]
Subject: Re: [TheForge] propane forge burner book

Jeff Mohr did and experiment in his production shop w/ three coal forges
going all day.

Leaving the air blowing only increased coal consumption 10%.   Theory is =
it
took too long to get back up to forging temp.
Same for gas???

dan tull
georgia
abba, afc, S.C. psba, obg,sofa
----- Original Message -----=20
From: <[email protected]>
To: <[email protected]>
Sent: Friday, February 27, 2004 9:37 AM
Subject: Re: [TheForge] propane forge burner book

> Maybe steel doesn't stay as hot for as long here in Minnesota as it=20
> does in warmer climes but it sure doesn't seem to me that there would=20
> be much point in turning down the forge between heats. What does the=20
> savings in gas amount to?
>
> Bob
> ______
>
>
> On Thursday, February 26, 2004, at 05:26 PM, Marc Godbout wrote:
>
> >  I like the idea
> > of being able to idle the burner when hammering. Do you have to move =

> > the choke, too, for this?
> >
> > Marc Godbout
>
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