[Sca-cooks] bellows

[Phlip]

Ene bichizh ogsen baina shuu...

> And then said:
> > The set I
> > intend to build will be OOP, since they're double lung- I don't think
that
> > style came in until  the 19th century.
>
> Do you mean a double chamber bellows? If so, yes they appear to be period.
>  From the above file:
>
> > From: william thomas powers > > Good Lord Stefan;  RUN to a copy of "De
Re Metallica" by Agricola,
> > Dover has reprinted the Herbert Hoover translation.
> >
> > In it you will find pictures and instructions on building a period
> > "double acting" bellows "like goldsmiths use"  I believe it is at
> > least in the chapter on assaying furnaces and such.  Materials used:
> > leather, wood, nails.

Yeah, I've been talking to Wilelm. He posted to me on the EKMetalsmiths List
last Friday:

> I will be building another set this year based on Theophilus or Agricola
(both
> give instructions on bellows building but for single lung ones)

Three different types, Stefan. There are the originals, which were a single
chamber, but have the drawbacks of an uneven airflow, and as he mentioned,
will tend to draw the hot air back inside them if not properly valved- not
to mention coal or charcoal dust, which can be a bit...entertaining when it
ignites inside your bellows. Then there's the transitional type, which he
may be referring to here- essentially two single bellows, working in tandem,
so the airflow is more even. Finally there's the double lung sort, which are
what I'm planning on building, and which the instructions for are in the
following book you referred to ;-) All of them, however, are quite capable
of bringing coal or charcoal up to welding heat, as long as they're big
enough.

> > The Blacksmith - Ironworker & Farrier
> > Aldren A. Watson 1977-1990
> > W W Norton & Co
> > ISBN 0-393-30683-6

Very nice little book, btw- if I had the money, I'd buy a copy.

And that goes too, for the Hoover translation of De Re Metallica. I've
looked it over in some detail at Duke Andrew's place- it was my nightly
reading material when I crashed up there and we did smithing stuff, but
since his death, I don't have access to it, and I REALLY want a copy of it-
and Theophilus as well.

You guys putter with stoves and such- I'm building me a barbecue with an
attitude ;-)

Phlip, burn specialist...

 If it walks like a duck, and quacks like a duck, it is probably not a
cat.

Never a horse that cain't be rode,
And never a rider who cain't be throwed....