An Improvement in the Mode of Heating Bakers' Ordinary Brick Ovens.
Year: 1892

page_text: Date of Application, 8th Dec., 1892
Complete Specification Left, 7th Mar., 1893-Accepted. 22nd Apr., 1893
PROVISIONAL SPECIFICATION.
An Improvement in the Mode of Heating Bakers' Ordinary
Brick Ovens.
CHARLES GIBBS, 53 Pitt Street West Bromwich Staffordshire Journeyman
Baker & Confectioner & CHARLES COUSE Master Baker & Confectioner 9 Nicholl
Street West Bromwich Staffordshire do hereby declare the nature of this invention
to be as follows:-
It consists of having a furnace so constructed whereby which perfect combustion
of fuel takes place, with the minimum of smoke.
For an oven with 10 = 8 feet superficial capacity of floor the furnace should be
24 inches in length, 11 inches in height & breadth, with a perforated bar of cast
iron, 4 inches by 4 in thickness placed in the following position 11 inches from the
front of furnace, and 9 inches from entrance to oven and 7 inches from the furnace
bars, and be of sufficient length to have at least 2 inch bearing on brickwork at
each side of furnace.
By this means, a few minutes after the fire is started, by pushing the burning
coal, or coke, the ovǝn side of the bar, and putting the fresh supply of coal, or coke
in front of the bar. The smoke having to pass through the perforated bar is divided,
instead of being in a great volume, and having to go over the red hot coal, or coke,
is instantly combusted, before it enters the oven, consequently scarcely any smoke
is emitted from the chimney.
Further, by the extra draught the heat is equally distributed over the oven, and
a great saving of fuel takes place, by, having it completely combusted previous to
the smoke entering the oven.
Furthermore a plate of iron 3 inches by 4 thick is placed at the entrance of the
oven by the furnace, the bottom of which plate, is level with the top of the furnace
bars, and the top of said plate is level with the floor of the oven, so as to prevent
the quarries, or bricks, from burning or breaking away.
The top of the furnace is composed of slabs, of, fire brick, 4 inches thick. The
bottom, with ordinary furnace bars.
Dated this Seventh day of December 1892.
CHARLES GIBBS,
CHARLES COUSE,
Applicants.
COMPLETE SPECIFICATION.
An Improvement in the Mode of Heating Bakers' Ordinary
Brick Ovens.
CHARLES GIBBS 53 Pitt Street West Bromwich Staffordshire Confectioner &
CHARLES COUSE 9 Nicholl Street West Bromwich Staffordshire 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 has for its objects improvements in baker's oven furnaces so that
they will heat the oven equally in every part, also that perfect combustion of fuel
take place, with the minimum amount of smoke and this without detracting from
their durability or materially increasing their cost.
.
In order that the invention may be clearly understood, we have appended

page_text: hereunto sheets of drawings upon which is illustrated the nature of the said
improvements.
Figure 1 is a transverse section.
Figure 2 is a longitudinal section.
In carrying the invention into effect we regulate the dimension of the furnace by
the size of the chamber to be heated, with the additions hereinafter mentioned.
For an oven with 10 feet by 8 feet superficial capacity of floor we build
the furnace 24 inches in length, 11 inches in height & breadth with a
perforated bar of cast iron, marked "A" on drawings, 4 inches by 4 in thick-
ness placed in the following position. 11 inches from the front of the furnace,
and 9 inches from the entrance to the oven, and 7 inches from the furnace
bars. By this means a few minutes after the fire is started, by pushing the burning
coal or coke the oven side of the bar, and putting the fresh supply of coal or coke
in front of the bar, the smoke passing through the bar is divided instead of being
in a great volume, and having to go over the red hot coal or coke is instantly
combusted, before it enters the oven, consequently scarcely any smoke is emitted
from the chimney. Further by the extra draught the heat is equally distributed
over the oven, and a great saving of fuel takes place by having it completely
combusted previous to the smoke entering the oven.
A plate of cast iron marked "B" on drawings 3 inches by 4 in thickness and
16 inches long is placed at the entrance of the oven from the furnace, the bottom
of which plate is level with the top of the furnace bars, and the top of said plate is
level with floor of the oven. so as to prevent the quarries, or bricks, from burning
or breaking away. A block of cast iron marked "C" on drawings, 3 inches thick
is also put up each side of the furnace, reaching the whole length of same, and
placed in the following manner, the bottom side of the blocks of iron is level with
the furnace bars takeing the place of the first course of bricks if bricks are used.
By this means the sticking of clinkers at the sides of the furnace is prevented, as
the clinkers will not so readily adhere to iron as they will to the porous bricks, or
fire clay.
The top of furnace is composed of slabs of fire clay. The bottom of ordinary
"bars.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is.
1st. The furnace being constructed to dimensions in proportion to the size of oven
to be heated.
2nd. The perforated bar, and its position in the furnace.
3rd. The blocks of iron at the sides of the furnace, instead of fire bricks or fire
clay slabs.
Dated this 7th day of March 1893.
CHARLES GIBBS.
CHARLES COUSE.