IMPROVEMENTS IN FURNACES FOR BAKERS OVENS
Year: 1884

page_text: We GEORGE DILLIWAY and EDGAR NEWMAN both of Burnham in the County
of Essex do hereby declare the nature of said Invention for "IMPROVEMENTS IN
FURNACES FOR BAKERS OVENS "to be as follows:-
This Invention relates to the furnaces of Ovens used by Bakers for baking their
bread pastry or the like and has for its object to obviate the great expense
inconvenience loss of time and damage which occurs in renewing these furnaces
as at present arranged.
According to the said Invention we make a casting in one piece consisting of
two sides with an arched upper part or top with a front part against which the
door is fitted the said front part being formed on the bevel that is with one side of
the casting longer than the other according to whether the oven be a right handed
or left handed oven. The sides are made tapering being thicker at the end furthest
from the door-The said casting is put in place over the grate bars and constitutes
the sides and roof. of the furnace-The bottom of the furnace is formed with
furnace bars in the usual manner.
A considerable advantage arising from the use of the casting is that a triangular
space in the oven situated between the side of the furnace and the door of the
oven and which in brick, furnaces is, fitted in with, brickwork is by this Invention
left clear and can be utilized for baking purposes. The space being very near the
door of the oven is of great, service for baking small articles requiring special
attention.
Another advantage arising from the use of the casting is that the back end of it
which can be seen from the door of the oven is a good indicator of the heat of
the oven.

page_text: We GEORGE DILLIWAY and EDGAR NEWMAN both of Burnham in the County
of Essex do hereby declare the nature of our invention for "IMPROVEMENTS IN
FURNACES FOR BAKERS' OVENS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
This Invention relates to the furnaces of ovens used by Bakers for baking their
bread pastry or the like and has for its object to obviate the great expense,
inconvenience, loss of time and damage which occurs in renewing these furnaces
as at present arranged.
According to the said Invention we make a casting or moulding in one piece
consisting of two sides with an arched upper part or top and with a front part
against which the door is fitted, the said front part should be formed on the bevel,
that is with one side of the casting longer than the other, according to whether the
oven be a right handed or left handed oven The sides are preferably made
tapering, being thicker at the end furthest from the door The said casting is put
in place over the grate bars and constitutes the sides and roof of the furnace The
bottom of the furnace is formed with furnace bars in the usual manner.
And in order that our said Invention may be fully understood we shall now
preceed more particularly to describe the same and for that purpose shall refer to
the several figures on the annexed sheet of drawings the same letters, indicating
corresponding parts in both the figures.
Figure 1 represents in horizontal section a portion of a Bakers Oven provided
with our improvements and Figure 2 is a transverse section of the same the section
being taken along the line 1-2, in Figure 1. A is the oven or space wherein the
articles to be baked are placed, and B is the furnace for heating the said oven,
which furnace is provided with the usual fire bars C.
According to our Invention we place over the fire bars C a casting D of metal,
which casting consists of two sides d d and an arched crown or roof d³. The
sides d d of this casting taper or are made of increasing thickness from the front
to the back ends thereof where they are subjected to the greatest heat, their inner
faces or those next the fuel being however parallel to each other-The front end of
the casting where the furnace door shuts against it, should be made to slope either
to the right hand or to the left, the slope being in the reverse direction to that
shewn in the drawing, when the furnace is situated on the opposite side of the
oven door,
The inner end of the casting is made to project inside the Oven so that a
triangular space a (which in ordinary brick furnaces is filled in with brickwork) is
left between the side d³ of the casting and the door of the Oven, which space may
be utilized for baking small articles requiring special attention.
The inner end of the casting D is by preference cast or provided with a hanging
fire bridge or drop piece for the purpose of arresting the smoke in its passage
from the furnace and causing it to be deflected on to the burning fuel so as to
effect its combustion The inner end of the casting may be seen from the entrance
to the oven and serves to indicate the heat of the said oven.

page_text: Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed We declare that what
we claim is
For use in the furnaces of Bakers Ovens, a casting or moulding forming the
sides and roof of a furnace for application to the oven furnace, substantially as
hereinbefore described and illustrated by the accompanying drawing.
Dated the 24th day of November One thousand eight hundred and eighty