IMPROVEMENTS IN AND RELATING TO BAKERS' OVENS
Year: 1884

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co, Patent
Agents, Southampton Buildings, in the County of Middlesex, do hereby declare
the nature of my invention for "IMPROVEMENTS IN AND RELATING TO BAKERS'
OVENS" to be as follows:
This invention relates to bakers' ovens and comprises improvements in oven-
doors and improved means for lighting the interiors of ovens and admitting steam
thereto.
According to the said invention the oven-door is arranged in a cast iron frame
which is bolted to the front side of the oven. The space enclosed by the said
frame is divided by a plate into two portions, of which the lower one is closed in
front by a door which turns upon a horizontal bolt and is supported, when turned
into its lowest position, by the handle of the door, so that the said door forms
a table before the oven. The upper space is provided in front with a wall which
is cast integral with the frame. In this wall is an opening, above and below which
are bars, in grooves in which is fitted an iron-plate having fitted in it a sheet or
pane of glass so as to permit of looking into the oven without opening the door in
front, the glass being placed before the opening in the said wall.
Towards the back of the frame is a swinging-door, which is hinged near its
centre upon a horizontal bolt and normally closes both openings in the said frame.
The upper part of the door when closed abuts against a rib upon the upper side of
the frame, and the lower part assumes an oblique position resting against the
bottom-plate of the frame. By means of a handle extending to the outside of the
frame, the door can be turned upon its hinge, thereby causing the lower part to
assume a nearly horizontal position, that is to say, to extend into the oven, whilst
the upper part turns to the inside of the upper space in the frame.
By these means the steam is prevented from escaping from the oven, when the
door is opened, so easily as heretofore, as the steam has the tendency to pass along
the upper surface of the oven and enter the upper closed space of the frame, and
from here it is directed along the inner door back into the oven. This door can be
moved with much greater facility than the appliances hitherto made use of for this
purpose.

page_text: In order to light the interior of the oven, a chamber or box for containing
a light is provided, preferably arranged on the right-hand side of the oven-door.
A frame of wrought-iron holding a glass plate is on the side towards the interior of
the oven.
Near this glass-plate inside the box is placed a movable gas-burner the
flame from which lights the interior of the oven. The air for supporting combustion
enters through a lower opening in the exterior front side of the box, the said
opening serving also for the introduction of the gas-pipe. The products of
combustion escape through an opening at the upper part of the box.
In order to compel the air to pass to the flame so as to enable the light to be
utilized as much as possible, and to prevent the glass from being covered with
smoke and from cracking, an oblique plate is arranged in the chamber or box.
With the means hitherto employed for admitting steam directly into the oven,
a portion of water was taken along with the steam. This is obviated, according to
the present invention, by first conducting the steam into a box or chamber. The
steam as it enters the said chamber through a suitable opening impinges against an
inclined plate and thence passes below the said plate and through an opening into
the oven, thereby separating the particles of water from the steam previous to the
latter entering the oven. The water is afterwards withdrawn from the bottom of
the chamber by means of a cock
T
The lighting chamber and the steam admission box may be used together or
separately and with or without the oven door.

page_text: つ
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co; Patent
Agents, Southampton Buildings, in the County of Middlesex do hereby declare
the nature of my invention for "IMPROVEMENTS IN AND RELATING TO. 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 bakers' ovens, and comprises, improvements in and
connected with oven-doors, and improved means for lighting the interiors of ovens
and admitting steam thereto.
The said invention is illustrated in the accompanying drawing, the figures of
which are hereinafter referred to.
The door-frame A has a transverse partition B, and is bolted to the front of the
oven.
The space below the partition or plate B is closed in front by a door.C which
turns upon the horizontal bolt D and is supported when turned into its lowest
position, by the handle E of the door so that the said door forms a level tablo
before the oven. The space above the partition is closed in front by a wall which
is cast integral with the frame. In this wall is an opening, ábove and below which
are bars, in grooves, in which is fitted an iron-plate holding a sheet or pane of
glass so as to permit of looking into the oven without opening the door in front,
the glass being placed before the opening in the said wall.
Towards the back of the frame A is a swinging door F which is hinged near its
centre upon the horizontal bolt G and normally closes openings in the said frame
both above and below the partition on the inner side. The upper part of the
door F, when closed, abuts against the rib H upon the upper side of the frame and
the lower part assumes an oblique position resting against the bottom-plate of the
frame. By means of a handle I extending to the outside of the frame and shown
in dotted lines in Figure 1, the door F can be turned upon its hinge, thereby
causing the lower part to assume a nearly horizontal position, that is to say to
extend into the oven, whilst the upper part turns to the inside of the upper space
in the frame.
By these means the steam is prevented from escaping from the oven, when the
the door C. is opened, so easily as heretofore, as the steam has the tendency to pass
along the upper surface of the oven and enter the upper closed space of the frame,
and from here it is directed along the upper side of the swinging door F, which
occupies a horizontal position, back into the oven. This door can be moved with
much greater facility than the appliances bitherto made use of for this purpose.
In order to light the interior of the oven, a chamber or box of the construction
shown in Figure 2 is provided.
This lighting chamber or box which comprises a frame of cast-iron is arranged to
the right-hand side of the oven-door. A frame of wrought iron holding a glass-
plate is on the side towards the interior of the oven. Near this glass-plate, inside
the box, is placed a movable gas-buruer the flame b from which lights the interior
of the oven. The air for supporting combustion enters through a lower opening in

page_text: the exterior front side of the box, the said opening serving also for the introduction
of the gas-burner. The products of combustion escape through an opening o at
the upper part of the box.
In order to compel the air to pass to the flame so as to enable the light to be
utilized as much as possible and to prevent the glass from being covered with
smoke and from cracking, an oblique plate e is arranged in the chamber or box.
With the means hitherto employed for admitting steam directly into the oven,
a portion of water was taken along with the steam. This is obviated according to
the present invention by first conducting the steam into a box or chamber shown
in Figure 3. The steam as it enters the said chamber through a suitable opening d
impinges against an inclined plate e and thence passes below the said plate and
through the opening f into the oven, thereby separating the particles of water from
the steam previous to the latter entering the oven. The water is afterwards
withdrawn from the bottom of the chamber by means of a cock.
The lighting chamber and the steam admission box may be used together or
separately and with or without the oven door.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that
what I claim is
First. The combination of the door-frame A having the partition B, the door C,
the window in the front wall closing the space above the partition, and the door F
having the handle I, all constructed and operating substantially as, and for the
purpose, described.
Second. A lighting chamber having the oblique plate c substantially as described
for the purpose specified.
Third. The box herein before described in which the particles of water are
separated from the steam prior to its passing to the oven, the said box having
a plate e against which the steam impinges on its entrance.
Dated this 3rd day of February 1885.
HASELTINE, LAKE & Co.,
For the Applicant.