AN APPARATUS, WHICH I TERM CARBO-FRUGALIST, BEING AN EFFECTUAL MODE OF APPLYING FIRE TO BOILERS, OVENS, AND OTHER CALDRONIC IMPLEMENTS, WHEREBY THE POWER OF THE HEAT IS VERY MATERIALLY INCREASED, AND THE CONSUMPTION OF FUEL CONSIDERABLY DIMINISHED, MUCH MORE SO THAN BY ANY OTHER MODE HITHERTO INVENTED
Year: 1799

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
COOKE, of Red Lion Square, near Holborn, in the County of Middlesex, Clerk,
send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing date the
Twenty-ninth day of January, in the thirty-ninth year of His reign, did give
and grant unto me, the said James Cooke, my exors, adñiors, and assigns, His
especial licence, full power, sole privilege and authority, that I, the said James
Cooke, my exors, adññiors, and assigns, from time to time and at all times there-
after during the term of years therein expressed, should and lawfully might
make, use, and exercise, and vend, within that part of the Kingdom of Great
Britain called England, the Dominion of Wales, and the Town of Berwick
upon Tweed, my Invention of "AN APPARATUS, WHICH I TERM CARBO-FRUGALIST,
BEING AN EFFECTUAL MODE OF APPLYING FIRE TO BOILERS, OVENS, AND OTHER
CALDRONIC IMPLEMENTS, WHEREBY THE POWER OF THE HEAT IS VERY MATERIALLY
INCREASED, AND THE CONSUMPTION OF FUEL CONSIDERABLY DIMINISHED, MUCH MORE
SO THAN BY ANY OTHER MODE HITHERTO INVENTED;" in which said Letters Patent
is contained a proviso that I, the said James Cooke, should, within the space of
one calender month next and immediately after the date of the said in part
recited Letters, particularly described and ascertain the nature of my said
Invention, and in what manner the same is to be performed, by an instru-
ment in writing under my hand and seal, to be enrolled in His Majesty's High

page_text: Court of Chancery, otherwise the said Letters Patent to be void and of no
effect, as in and by the said Letters Patent, reference being thereunto had,
may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
James Cooke, do hereby declare that the nature of my said Invention of an
apparatus, which I term carbo-frugalist, being an effectual mode of applying
fire to boilers, ovens, and other caldronic implements, whereby the power of
the heat is very materially increased, and-the consumption-of fuel considerably
diminished, much more so than by any other mode hitherto invented, and the
Danner in which the same is to be performed, is particularly described in the
several Plans, Drawings, or Figures contained in the margin of these presents,
with the explanations and reference thereto hercin-after mentioned (that is to
say):-
43 fi
Fig. 1 represents a plan of a spiral boiler or vessel for heating or boiling
fluids of all descriptions. The spiral-boilers may be made of cast or wrought
iron, or any other metal. They may also be made of different sizes and forms,
viz., circular, oval, square, cylindrical, conical, or otherwise. A, A, A, A,
external angles forming the outside of the boiler or vessell; B, B, B, B, internal
angles, forming, the inside, of the boiler or vessell, and comprising four spiral
revolutions, beginning at C and ending at D. The external angles "A, A,"
A, A, form part of the flue round the outside of the boiler or vessell, which may
be made of different sizes, with more or fewer revolutions, according to the
size of the boiler or vessell, also of different forms, viz., with acute or obtuse
angles, rectangles, segments of circles, or ovals. The flue is compleated by
inclosing the angles A, A, A, A, with plates of cast or wrought iron, or other
metal, or tiles in segments corresponding with the respective parts of the spiral
revolutions, or with bricks and mortar, or other materials, so as to subtend the
angles A, A, A, A, from E to F, from F to G, from G to H, from H to I re-
spectively, thereby forming one continued spiral flue with four revolutions round
the boiler from C to D. The boiler may be set in brick or stone, as in common,
excepting that the flame after passing the bottom of the boiler is diverted into
the flue at the lowest angle A, instead of passing into the draught or chimney,
and is discharged into a draught or chimney at D, or at any other part of the
flue, by means of valves for that purpose.
K, L, M, N, the lower part of Fig. 2, represents a section Fig 1; K, L,
O, P, the upper part, represents a section of the boiler inverted and applied to
it at K, L, by means of screw bolts and nuts or rivets, or other methods, so as
to make it steam-tight; Fig. 2, in this state, represents a section of the boiler
and flue set in brickwork, applicable to the purposes of creating steam for the
',

page_text: use of steam engines, distilliries, and other steaming apparatus, with the spiral
flue described 'in the boiler, Fig. 1, beginning at Q and ending at R, or the
boiler, of which M, N, O, P, is' a section', may be compleated in one structure.
A steam pipe or pipes with corresponding appendages'may be applied to a l'ole
or holes in the top or side of the boiler, Fig. 2, but if applied in the side of the
boiler, one or more revolutions of the spiral flue may be discontinued.
By inverting the boiler, Fig. 1, upon a plate of cast or wrought iron, or
other. metal, it will respectively become an oven for the purpose of. baking or
roasting, or a stove for warming rooms, &c., in which case the fire is applied
under the plate or bottom of the oven, so as to be connected with the spiral
flue D, or the said boiler may be inverted on a floor of metal, brick, tile, or
other materials, and the fire applied by means of a furnace of the outside, or
the fire may be put within the oven or stove, and connected with the spiral
flue D, a piece being previously taken out of the edge of the oven or stove
for a door at or near D; and by inclosing the angles A, A, A, A, at the angles
E, F, G, H, I, with cast or wrought iron plates or other metal with screw
bolts and nuts, or rivets, or any other means, so as to be steam-tight, without
brickwork being applied to the outside of the spiral flue, the said flue will
communicate a boiling heat to the inside of the boiler or vessell, and a roasting
hèat on the outside of the said flue at the same time; and if the internal
angles B, B, B, B, are inclosed with plates of cast or wrought iron, or other
metal, with screw bolts and nuts, or other means, so as to be steam-tight at the
angles S, T, U, W, X, of the section, Fig. 2, an additional flue will thereby
be made, so as to have a communication with the flue described as above, which
will add a considerable degree of heat to the said ovens or stoves.
.
In witness whereof, I, the said James Cooke, have hereunto set my
hand and seal, this Twenty-eighth day of February, in the thirty-
ninth year of the reign of our Sovereign Lord George the Third, by
the Grace of God of Great Britain, France, and Ireland King, De-
fender of the Faith, and so forth, and in the year of our Lord, One
thousand seven hundred and ninety-nine.
;

page_text: AND BE IT REMEMBERED, that on the Twenty-eighth day of February,
in the year of our Lord 1799, the aforesaid James Cooke came before our said
Lord the King in His Chancery, and acknowledged the Specification afore-
said, and all and everything therein contained and specified, in form above
written. And also the Specification aforesaid was stampt according to the tenor
of the Statutes made for that purpose.
Inrolled the Twenty-eighth day of February, in the year of our Lord One
thousand seven hundred and ninety-nine.