Improvements relating to Bakers' Ovens.
Year: 1889

page_text: Date of Application, 17th Sept., 1889-Accepted, 26th Oct., 1889
COMT LEISTELLATION.
Improvements relating to Bakers' Ovens.
1, GEORGE EDSON BAILEY of the Town of Mansfield in the County of Bristol and
State of Massachusetts United States of America, 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:—
Under this invention the furnace or combustion chamber is located under the oven-
chamber, and separated therefrom by an enclosed air-chamber located directly under
the floor of the oven, and flues are provided leading from the furnace and opening
into the oven-chamber at its top portion and from the oven-chamber to the chimney
or escape-flue and all otherwise, substantially as hereafter described.
In the drawings, forming part of this specification, Figure 1 is a section on the
horizontal plane of the oven floor, the floor being removed as also the roof of the
furnace. Figure 2 is a transverse vertical section, line 2-2, figure 1. Figure 3 is a
plan view of the oven-chamber overturned and its floor removed. Figures 4 and 5
are vertical sections from front to rear of oven, lines. 4-4, and 5-5, respectively,
figure 1.
In the drawings, A represents an outer casing to be built of brick or other masonry
or suitable material; B is the oven-chamber enclosed by the masonry A and having
a communicating door C; D is the floor of the oven-chamber, constructed by
preference of tiles, as well known, supported at suitable points on brick columns C²
resting on the floor of an enclosed air-chamber or space È located directly below the
oven-floor and constructed of masonry in any suitable manner.
F is the furnace enclosed in and located at one side of the masonry A and having a
fire-grate F, and feed and ash-doors F, F, all as well known. This furnace F is below
and separated from the enclosed air-chamber or space and by its top wall F³, through
which heat is communicated to the enclosed air-space and thence through the oven-
floor to the oven-chamber. G is a flue leading from furnace F and running toward
the front side of masonry A where it opens into a horizontal flue H having opposite
end extensions J, leading upward through the front wall of the masonry and opening
into the oven-chamber at its upper side and near the front.
Each flue-extension J has a damper J, for opening and closing it, one damper
being shown.
The furnace F and flue G and its fluo-extension J, are all closed to the oven-
chamber, except when the dampers J, J2 are open, and furthermore they are severally
closed to the enclosed air-chamber and space E above the furnace F and under tho
oven-floor. K is a hood located at the front and on the outside of the oven-masonry A
directly over the oven-door C.
The lower end K' of the hood K is open and the upper end K³ is closed and
the enclosed space K of the hood has a flue-passage K which leads from it and
opens at K into the chimney or escape-flue (not shown) of the oven chamber.
Lis a flue leading from top of oven-chamber, near its front, to the chimney and
located just back of the hood-flue K*.
M is a slide-damper for opening and closing chimney flue L of oven-chamber and
also the hood flue K.
The enclosed air-chamber or space E below oven-floor and oven-furnace F but
closed to both oven-chamber and furnace, in combination with the flue-passage or
passages leading from the furnace directly into the oven-chainber and from the oven-
chamber to the chimney, severally having dampers to open and close them, enable the
heat of the oven to be more evenly, thoroughly and effectively diffused about the
oven-chamber and to be maintained and regulated in the most practical and desirable
manner for the requisites of the baking desired.

page_text: Further than this the hood and its arrangement and communication with the
chimney all as described secures a 'ready and direct exit of the gases escaping at the
oven-door when opened the advantages of which are obvious.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
claim is
The combination with a baker's oven, of an oven-chamber B closed on all sides and
having a door to enter it and a floor D, an air-space or chamber E, located directly
under and embracing oven floor D, which makes a roof or top thereto, and closed on-
all sides and at all points to the oven-chamber, a furnace F under the floor of air-
chamber E and closed at all points to said chamber, a furnace flue H, J leading from
furnace and opening to upper portion of oven-chamber, a damper J' to open and close
flue H, an oven and escape-flue L leading from upper portion of oven-chamber and
a damper M to open and close flue L, substantially as described, for the purpose
specified.
Dated this 17th daviof Sentember 1880
HASELTINE, LAKE & Co.,
45, Southampion Buildings, London, Agents for the Applicant.