NEW OR IMPROVED COOKING APPARATUS
Year: 1816

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BARLOW, of Sheffield, in the County of York, Founder, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of the United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Second day of July, One
thousand eight hundred and sixteen, in the fifty-sixth year of His reign, did
give and grant unto me, the said John Barlow, my executors, administrators,
and assigns, His special licence, full power, sole privilege and authority, that
I, the said John Barlow, my executors, administrators, and assigns, during
the term of years therein expressed, should and lawfully might make, use,
exercise, and vend, within England, Wales, and the Town of Berwick-upon-
Tweed, my
"NEW OR IMPROVED COOKING APPARATUS;" in which Letters Patent
there is contained a proviso, obliging. me, the said John Barlow, under my
hand and seal, to cause a particular description of the nature of my said
Invention, and in what manner the same is to be performed, and to cause the
same to be enrolled in His Majesty's High Court of Chancery within two
calendar months next and immediately after the date of the said in part
recited Letters Patent, as in and by the same, relation being thereunto had,
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Barlow, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, is described and ascertained

page_text: by the Drawings in the margin of these Presents, and by the following explana-
tion, that is to say:-
For
Figure 1 represents a front view of my cooking apparatus, uniting an oven
and boiler to a kitchen range without contracting fire-place, so constructed
that they will perform all the common operations of oven and boiler with a
very small quantity of fuel. A, the oven door; B, the front of boiler side;
C, apperture for filling boiler; D, D, D, the bars of the range (with or without
a falling one); E, a falling trevet or lip, which when not in use is turned up,
and is fastened to and forms a part of the moving cheek F, which is moved
by the usual means of a rack and pinion, generally placing them immediately
under the oven, and connecting the rack and cheek through the bottom grate
as is usual, where the movement is placed below the grate; G, the small door
for cleansing the flue. In the construction of this apparatus I use a cast-iron
One of its sides
oven, such as is well known by the name of poker oven.
forms one side or end of the fire-place, on which is cast a projecting piece or
poker H, of a length and thickness proportioned to the size of the oven.
ovens of middling size this poker will generally project from three to four
inches, and be about one inch and a half in diameter, and made strongest or
thickest at its root. In the inside of this oven and at a small distance, say,
about half an inch from the side next the fire, I place a plate of cast or
wrought iron, or other proper substance, in which I make a number of per-
forations. This plate forms by means of two small ledges or stripes a groove
or space between itself and. the oven side for the sliding part of a spit rack to
move in, and the front edge of it may be returned or otherwise formed to cover
the space or cavity made or seen at I, I. It also serves to break or correct
the two sharp or searching heat of that side of the oven, and to give a current
of heated air through the oven by means of perforations in the returned part
I, I, and a valve, stop-cock, or ventilator, placed at the opposite side or corner of
the top of the oven. The groove, or space, or cavity for the sliding part of the rack
on the boiler side, I place immediately below the bottom of the boiler, and join
the sliding and rack parts at right angles thus 2 making the rack parts
of equal lengths for the sake of uniformity. But though I here describe one
mode of fixing spit racks (when required) which appears most suited to the
construction of this apparatus, I do not confine myself to it, but use any of the
methods commonly practised of which the apparatus is capable. To prevent
the action of coll air on the top of the oven, a plate or cap of cast or wrought
When the oven is
iron, or other proper substance, may be placed on it.
required to be made of great depth backwards, I cast an extra projecting piece
or poker near the back part of the oven on the same side as the other, so that

page_text: when fixed and in use it projects into the flue at a small distance behind the
grate at L, Figure 2. I ventilate the oven in any of the usual ways.
Figure 2 is a perspective view of the boiler before it is fixed to the range,
which forms one side or end and the back part of the fire-place. At L is an
opening, which is the commencement of the flue.
Figure 3 represents a back view of said boiler; the arrow shews the course
of the flue, which being brought through the corner at M, is conducted
horizontally on the whole length of the boiler to N, and is then turned up the
chimney in the common way.
Figure 4 shews the end view of the boiler farthest from the oven, with a
section of the flue; when turned upwards the part O is to facilitate the cleaning
of it at the small door to Figure I.; the cleaning is performed with a brush in
common use, made in the manner of a bottle brush, but longer and with joints
in it. When the front part of the boiler P, Figure 2, is very wide to contain
a greater body of water in order to accelerate the boiling of it, I form a section
of the flue in the back part of the boiler, by which means a greater surface of
water is exposed to the action of the fire; but if the front part P is not
required to be large and uniformity of appearance is desired, I make or convert
that part of the boiler cover Q, Figure 1, which is unoccupied by the boiler,
into a small hot plate ironing or stewing stove, to be heated either by the boiler
flue or by a seperate fire in the usual way; I prefer the latter mode. I use
any material in the manufacture of my apparatus that is suitable for the
purpose, and though I usually make the flue of iron, it may be made in brick-
work to answer the purpose. place a damper in any part of the flue most
convenient between the top of the boiler B and S, Figure 4. I make the
range or bars in the common way, only the checks or standards reach to the
ground to form the necessary fastenings for the fronts by screws, revits, or
otherwise. The bottom grate is supported by two cheeks, frames, or back legs;
the boiler cover T, T, Figure 1, is fitted so as to be steam-tight, as is likewise
the small lid at C, if the apparatus be wanted to produce steam. I make the
boiler with or without a cock, with a feeding cistern or without, and if
necessary adapt it for warming baths or apartments, or cooking by steam.
I generally approve of using a loose back or stout plate of cast iron or other
proper material, which is placed against and covers that part of the boiler
where the fire is kept in the range V, Figure 2; and at the entrance of the
flue L, Figure 2, I place a grate W, Figure 1, which from its sloping position,
and by means of a rebate on its edge next the boiler, retains its place; it there-
fore can easily be removed for cleansing the flue, or renewal when injured.
But as to the ashes and small cinders will fall through this grate into the flue,

page_text: I make an ash-pit, as represented at X, Figure 3, iimmediately behind the
grate W, Figure 1; and to prevent a current of air passing through this into
the flue, I place a damper or small door in it, Y, Figure 1. It may be
observed, that although separate parts of this apparatus have been in use
before, yet the arrangement and combinations are new, and produce considerable
advantages not possessed by any other cooking apparatus.
In witness whereof, I, the said John Barlow, have hereunto set my hand
and seal, this Ninth day of August, in the fifty-sixth year of the
reign of our Sovereign Lord George the Third, by the grace of God, of
the United Kingdom of Great Britain and Ireland, King, Defender
of the Faith, and in the year of our Lord One thousand eight hundred
and sixteen