[Stoves] old patent-paper about a saw-dust stoves

Tue Jan 18 16:46:10 CST 2011

Dear Kevin, Marc, Crispin and all,

I hope my rough and ready translation (link to the Original text below) will
be exact enough.

Those patent/law formulations are somehow twisted (the other possible
translation of “verdreht” would be crazy :-) ) and difficult to understand
even in the native language

If there is some doubt to be right, or lack of understanding, use the very
good dictionary 

 <http://dict.leo.org/ende?lang=de&lp=ende> LEO Deutsch-Englisches
Wörterbuch

-Which I am often forced to use to understand English texts, even from the
stoves-list; but worse the multiple-sensed abbreviations.

Fritz Kaftanski Koeln am Rhein (Germany)

Sawdust stove with insert-firing

Patented in Germany beginning from November 28th 1922

Object of the invention is a saw-dust stove with insert-firing in order to
burn saw-dust an piece/lump (sized) fuel as Coal, wood and so on.

It is possible to use the insert-firing in already existing saw-dust-stoves,
without outer changing of the stove, as e.g.  mounting fire- or ash-doors
and so on.

      Those stoves for burning saw-dust are composed mainly (as shown in Fig
Abb3  ) out of a mantle, a cylindrical insert, which serves as fuel
container, and the essential part (e),

      with its help the centre burning channel is created..

 As there is lack of saw-dust or similar fuel, it is not possible to run
such a stove with coal or other piece-shaped fuel, because there is no
griddle, und especially, because saw-dust –stoves have neither  firing nor
ash-doors. Following the invention there is the possibility to run the
saw-dust-stove, as desired with flour-shaped and piece-shaped fuel and to
run a saw-dust-stove by use of the insert-firing without essential change
into a coal-stove..

Fig 1 Saw-dust-stove with insert-firing, view from above

Abb 2 insert-stove in vertical cut from the side Abb.3 saw-dust-stove with
inbuilt insert-firing in cross-section

The insert-firing consists mainly out of the housing d11 wit side
hooking-edges. In the housing is the basket-griddle a . It is with
sufficient distance from the wall of the housing d11 respectively d1 in that
hooked, so that kindling can be brought in.  The housing d11 is at same time
fire-starting-basket and ash-basket and it has a door for regulating the
air-administration.

In the bottom there is opening for ash removing containing an closing-clap
c. This opening serves as well as duct for the heat-gas into the stove, when
the basket is used as stove/burning-chamber. 

When used as saw-dust-stove it serves as centre-piece c as insert-opening.

By the position of the griddle-basket is it possible to start the fire from
top, without a stove-starting-door at the side. By this manner of starting
the fire, the fire burns from down (von unten) to top (nach oben). Before
placing the inset-firing it is possible to place paper. To start the fire,
it is sufficient to light the paper from above.

The rest text is about rights for the patent. –I don’t know if there are
still rights on that, but now after 85 years I guess that is history.

That’s so far the translation.

Marc, you can have a look to the DEOM-stove
(http://www.deomturbo.com/fonctionnement-poele-luxembourg.asp ) 

made in Belgium and France, which can burn as well saw-dust. This type of
stove is sold in Great Britain as well. Look at:
http://www.relaxstoves.co.uk/

The difference between both is the exit of the flue-pipe. The British has on
top, the DEOM has rear.

I know, there are different needs for the chimney-length between both and I
think this is because of that different flue-gas-outlet.

Possibly you are interested, to know that this type of stove is as well
built as a cooking stove with baking-oven. Look at:

http://www.deomturbo.com/cuisiniere-feu-bois-luxembourg.asp

Crispin, thanks for your general comments about old stoves/inventions and
their alterations. It is the same the line I am thinking, naturally without
your profound knowledge.

Regards

Martin

P.S. “Lonely logs don’t like to burn” (MB)

   The links in original language:

  Cover-sheet with the description for the intention of the insert
("Einsatz") 

   <http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page1.pdf>
http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page1.pdf

   Drawings with description:

   <http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page2.pdf>
http://www.collection-appareils.fr/brevet/Kaftanski/DE423728/page2.pdf

  Sometimes progress can happen by altering old ideas.

  Let the stovers know if you would like to modernize it for whatever
purpose.

  Best wishes for the New Year!

 Regards

 Martin

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