Improvements in or relating to Bakers' Ovens.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Bakers' Ovens.
I, AUGUST REICHE, of Meinsdorf, near Rosslau, in the Empire of Germany,
Master Baker, do hereby declare the nature of this invention to be as follows:-
:-
The present application for Letters Patent has reference to an arrangement for
regulating the draught of a baker's oven designed to replace the hitherto usual
damper for this purpose and has the advantage that it can always be actuated with
ease and certainty. Bakers' ovens are as is well known usually so arranged that
the front wall is constructed double and the space between the two walls is placed
in connection with the chimney. To regulate the draught a range of oven flues is
fixed in this said double wall, each flue has a projection in its upper part arranged
to form a valve seat for the ventilator. This latter is suspended preferably by
means of a chain from a lever pivoted in the outer wall. The ventilator is prefer-
ably formed convex on its under side to which the concave ventilator seat is suitably
adapted so that a reliable closing follows automatically as soon as the free end of
the lever is released. The weight of the ventilator is arranged to be considerably
greater than that of the free end of the lever and its attachment.
In order to hold the ventilator open to the required extent a chain is provided
secured to the end of the lever which can be hung at any desired link upon a hook
or hooks suitably fixed to the outer wall or a ring attached to the end of the chain
may be fastened in the same manner. The lever is pivoted in a box let into the
wall provided with slots to enable the lever to work. The oven flues are preferably
closed by means of a cover for convenience of cleansing and provided with side
lugs for better support in securing the same.
',וינ
2
זג
1
1000
W. P. THOMPSON & Co.,
31, High Holborn, London, W.C., Patent Agents for the Applicant.
Improvements in or relating to Bakers' Ovens.
I, AUGUST REICHE, of Meinsdorf, near Rosslau, in the Empire of Germany,
Master Baker, do hereby declare the nature of this invention, and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement:-
The invention which forms the subject of the present application for Letters
Patent relates to an arrangement for regulating the draught in bakers ovens.
The same is devised to take the place of the dampers hitherto used for this purpose,
and has the advantage that it can always be easily and reliably operated.
The improved arrangement is illustrated in the accompanying drawings in
which
Figure 1 shows the apparatus in section.

page_text: As is well known, bakers ovens in general are so arranged that the front wall is
constructed as a double wall, whereby the space between the walls A and B is
placed in connection with the chimney. For the regulation of the draught a row
of oven tubes C is inserted in the double wall A B. The tube C has a projecting
piece D which serves as valve seat for the closing valve E. The latter is connected
by means of a link to a lever G which is pivoted movably in the outer wall B.
The valve E has its working surface formed spherical and the valve seat is shaped
concave correspondingly, so that a reliable closing follows automatically as soon as
the free end of the lever G is released. The weight of the spherical valve is for
this purpose made considerably greater than the weight H attached to the free end
of the lever arm G.
In order to keep the valve E open at the desired point the corresponding link of
the chain is hung upon a hook I fixed to the outside of the wall B (see Figure 4)
or several hooks K may be arrangel one above another upon which a ring L
attached to the lower end of the draw chain may be hung (see Figure 5). The
lever arm G is supported in a bearing M secured in the wall B which is provided
with slots N to allow of the passage of the lever arm G. The oven tube C is
closed by means of a cover O arranged in view of the convenience of cleansing and
is provided for more convenient walling in with side lugs P.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The improved oven tube with regulating mechanism characterised by having a
valve E placed upon the projection D and of spherical surface which is situated in
the space between the double walls A and B, and operated by means of a lever
arm G working in a bearing M and capable of being held at the exact position
required by means of a chain, the said valve effecting automatically a reliable
closing through its own weight upon the release of the said lever arm Ğ.
נ..
OLL 1
1000
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.