AN IMPROVED MODE OF APPLYING ROASTING JACKS TO KITCHEN RANGES AND COOKING STOVES
Year: 1860

page_text: LETTERS PATENT to Richard Perrott, junior, of Cork, in the Kingdom
of Ireland, Ironfounder, and John Molony, of Cork, Setter of Kitchen
Ranges, for the Invention of "AN IMPROVED MODE OF APPLYING ROASTING
JACKS TO KITCHEN RANGES AND COOKING STOVES."
Sealed the 22nd February 1861, and dated the 29th August 1860.
PROVISIONAL SPECIFICATION left by the said Richard Perrott and John
Molony at the Office of the Commissioners of Patents, with their
Petition, on the 29th August 1860.
We, RICHARD PERROTT, junior, of Cork, in the Kingdom of Ireland, Iron-
founder, and JOHN MOLONY, of Cork, Setter of Kitchen Ranges, do hereby
declare the nature of the said Invention for "AN IMPROVED MODE OF APPLYING
ROASTING JACKS TO KITCHEN RANGES AND COOKING STOVES," to be as follows:-
This Invention of an improved mode of applying roasting jacks to kitchen
ranges and cooking stoves relates to the means of setting the fan or vane
wheel of such jacks in motion. Hitherto this object has been effected by
placing the rotating fan or vane wheel in the flue or chimney, so that the
ascending current of air pressing upon the blades caused its rotation. It has
also been proposed so to arrange the fan or rotating wheel that the air supplied
to the fire of the cooking stove to keep up the combustion of the fuel will in
its passage drive the fan. Instead of placing the fan in the chimney of the
cooking range, or in the air supply passage, we propose to open an air passage
between the apartment containing the cooking stove or range and the chimney

page_text: of the range or other convenient flue by means of a pipe, and to mount therein,
or in a box or chamber in connection therewith, (just above the range or
stove) the fan and driving gear for rotating the roasting jack.
When employing the Invention in connection with an ordinary open roasting
grate, we propose to carry the air pipe above referred to up the chimney for
a few feet (more or less), to secure the requisite draft for giving the revolving
motion to the jack hung in front of the grate.
The Invention it will be understood applies equally to "kitcheners" fitted
up with iron flues, and standing out on open floors, as to those fitted with
brick flues prepared in walls.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Perrott and John Molony in the Great Seal Patent
Office on the 28th February 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, RICHARD
PERROTT, junior, of Cork, in the Kingdom of Ireland, Ironfounder, and JOHN
MOLONY, of Cork, Setter of Kitchen Ranges, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of August, in the year of our
Lord One thousand eight hundred and sixty, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said Richard Perrott and John Molony, Her special license that we, the
said Richard Perrott and John Molony, our executors, administrators, and
assigns, or such others as we, the said Richard Perrott and John Molony,
our executors, administrators, and assigns, should at any time agree. with,.
and no others, from time to time and at all times thereafter, during the
term therein expressed, should and lawfully might make, use, exercise,. and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "AN IMPROVED MODE OF. APPLYING.
ROASTING JACKS TO KITCHEN RANGES AND COOKING STOVES," upon the condition
(amongst others) that we, the said Richard Perrott, and, John Molony, by an
instrument in writing under our hands and seals, or under the.hand and
seal of one of us, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent, Office within
six calendar months next and immediately after the date of the said Letters
Patent.

page_text: NOW KNOW YE, that I, the said Richard Perrott, on behalf of myself
and of the said John Molony, do hereby declare the nature of our said
Invention, and. in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement,
reference being had to the Drawings hereunto annexed, and to the letters and
figures marked thereon (that is to say):
==
This Invention of "An Improved Mode of Applying Roasting Jacks to
Kitchen Ranges and Cooking Stoves," relates to the means of setting the fan
or vane wheel of such jacks in motion. Hitherto this object has been effected
by placing the rotating fan or vane wheel in the flue or chimney, so that the
ascending current of air by pressing upon the blades of the fan caused its
rotation. It has also been proposed to adapt the fan or rotating wheel to a
portable screen placed in front of a range, and provided with an air tube
passing through the ash-pit to the flue of the range. Instead of placing the
fan in the chimney of the cooking range or grate, or in a portable screen, we
propose to open an air passage between the apartment-containing the cooking
stove or range and the chimney of the range, or any other convenient flue, by
means of a pipe fixed above the range, and we mount therein, or in a box or
chamber in connection therewith (just above the range or stove) the fan and
driving gear for rotating the roasting jack.
When employing the Invention in connection with an ordinary open roasting
grate; we propose to carry the air pipe above referred to up the chimney for
a few feet (more or less) to secure the requisite draft for giving the revolving.
motion to the jack hung in front of the grate.
The Invention it will be understood applies equally to "kitcheners" fitted
up with iron flues as to those fitted with brick flues prepared.in walls.
In order, however, that our Invention may be more perfectly understood,
we have in the accompanying Drawings shewn the manner in which we propose
to carry the same into effect.
Fig. 1 is an elevation of an ordinary kitchener or kitchen range with an
open fire, suitable for roasting in front, but provided with doors to enclose or
shut in the fire at pleasure. A is the roasting jack adapted to the kitchen
range, according to our Invention, and placed at a convenient height above
the fire-place..
Fig. 2 is a transverse vertical section of Fig: 1, on the line A, D, showing
the mode of fixing the roasting jack with its air tube, which is made to enter
the working flue F of the range or fire-place. The draught is carried from
the fire-place B over the oven, as indicated' by the dotted arrows in Fig. 1,
and passes down at the end of the oven and under its bottom until it reaches

page_text: the ash-pit, where it passes in the usual way under the iron plate which forms
the floor of the ash-pit, as represented in section in Fig. 2. The draught
then passes up behind, and ascends the flue F (Fig. 2) which is placed
directly behind the fire. The air tube G, with which the jack A is connected,
communicates directly with the vertical flue F, as shewn in the Figure. This
tube G has a slide or slip joint in it to enable the jack to be drawn out or
pushed in near to the fire as may be required to suit the piece to be roasted.
The jack is provided with a supporting frame also, to admit of ready and
safe adjustment. The jack is provided with a fan and wheels, and other
gearing, to give motion to the joint, and secure the proper rate of speed, and
is also provided with a register or, a valve, as may be desirable, to shut off at
will the current of air, and check the motion. It is not indispensable, how-
ever, that the flue should ascend at the back of the range, as shewn in the
Drawing it may, if found needful to suit any given position, be made to rise
at either end, as is the case with many of the ranges in common use; but
wherever the working flue of the range, or any other flue that may be suitable
for the purpose may be situated, the air tube G is conducted to such flue,
in order to establish a current of air through the jack, and thereby to give
motion to its vane and wheels for the purpose of causing the joint to be
rotated.
Figures 3 and 4 represent front and sectional views of a mode of applying
the jack to an ordinary open roasting grate, in front of which the jack A is
placed at a convenient height, as already described in reference to Fig. 1.
The air tube G is passed through the smoke flue K, or, if desired, it may be
introduced into this flue, and made to run up the same for a few feet, if found
needful, in order to create a draught in the tube G; or this tube may be
carried forward, and made to run direct into a flue L, so arranged' as to receive
hented air from the fire, and but little smoke, the main body of the smoke
being carried up the chimney K; or the air tube may be made to enter a
distinct flue altogether. Any flue of any kind that may be available, whether
constructed of brick or iron, will answer so as to establish the current of air
through the jack with sufficient power to turn the vane or fly and wheels of
the jack effectively, and thereby cause the joint to rotate.
Figures 5, 6, and 7 represent a mode of applying the jack for roasting
within ovens or roasting screens, for which purpose the jack is placed ver-
tically over the oven within the arch of the range in any way that may be
convenient and suitable, the essential point being that a rod or chain to be
turned by the jack shall enter the crown of the oven for the purpose of turning
the spit of whatever sort within the oven.

page_text: In the sectional view, Fig. 7, the air flue L is shewn at the back of the
oven, and the air tube G passes directly back into it; but in many cases the
flue of the range rises at the ends of the range, in which cases the air tube
must be adapted accordingly, so as to enter the flue of the range, or some
other flue which has draught in it strong enough to set the parts of the jack
in motion.
Having now described our Invention of "An Improved Mode of Applying
Roasting Jacks to Kitchen Ranges and Cooking Stoves," and having explained
the manner of carrying the same into effect, that which we claim as our
Invention, and desire to secure by Letters Patent as aforesaid, is, the mode
herein set forth of actuating, driving, or adapting roasting jacks.
In witness whereof, I, the said Richard Perrott, have hereunto set my
hand and seal, the Twenty-third day of February, in the year of our
Lord One thousand eight hundred and sixty-one.
RICHARD PERROTT, JUN³. (L.S.)