AN IMPROVED MODE OF AND APPARATUS FOR HEATING AIR, OR FOR DESICCATING WET OR MOIST SUBSTANCES
Year: 1861

page_text: LETTERS PATENT to Joseph Heape Butterworth, of Vicars Moss Mills,
Rochdale, in the County of Lancaster, Cotton Spinner, for the Invention
of "AN IMPROVED MODE OF AND APPARATUS FOR HEATING AIR, OR FOR
DESICCATING WET OR MOIST SUBSTANCES." -A communication from abroad
by Jérôme Eugène Tourné, of New Orleans, in the State of Louisiana,
United States of America.
Sealed the 14th January 1862, and dated the 17th, July 1861.
PROVISIONAL SPECIFICATION left by the said Joseph Heape Butterworth
at the Office of the Commissioners of Patents, with his Petition, on the
17th July 1861.
I, JOSEPH HEAPE BUTTERWORTH, of Vicars Moss Mills, Rochdale, in the
County of Lancaster, Cotton Spinner, do hereby declare the nature of the
said Invention for "AN IMPROVED MODE OF AND APPARATUS FOR HEATING AIR,
OR FOR DESICCATING WET OR MOIST SUBSTANCES," being a communication to me
from abroad by J. Eugene Tourne, of New Orleans, and State of Louisiana,
United States of America, to be as follows:-
The Invention relates to the novel employment and use of a metal or alloy,
fusible at a low temperature, for the purpose of retaining heat imparted
thereto by fire, and in applying the heat so obtained to the drying of any
suitably required material. The apparatus consists in a vessel or receptacle
furnished with an arrangement of internal tubes similar to a multitubular

page_text: boiler, around which the fusible metal is disposed, and is heated to produce
heated air in the tubes, and which when once in a state of fusion may be kept
heated at a minimum consumption of fuel. The air thus heated is forced by
means of a blower or fan into the desiccating chamber or chambers, which are
provided with metallic cloth carriers to convey the substance under operation
through the chamber. These chambers are provided with an inclined bottom
to facilitate the escape of aqueous vapors, beneath which the heated air is
admitted, and the chambers may be connected by flexible or rigid joints or
otherwise arranged, the object being to economize fuel by maintaining the
heat once sufficiently obtained, to liquify the metal by keeping such molten
metal at a certain heat around the air tubes, which may be effected by a small
amount of fuel.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by John Butterworth and Henry Heape Butterworth, both of Rochdale,
in the County of Lancaster, Cotton Spinners, Executors appointed under
the last Will and Testament of the said Joseph Heape Butterworth,
deceased, in the Great Seal Patent Office on the 16th January 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
BUTTERWORTH and HENRY HEAPE BUTTERWORTH, both of Rochdale, in the
County of Lancaster, Cotton Spinners, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of July, in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto Joseph
Heape Butterworth, of Vicars Moss Mills, Rochdale, in the County of
Lancaster, Cotton Spinner, Her special license that he, the said Joseph
Heape Butterworth, his executors, administrators, and assigns, or such others
as he, the said Joseph Heape Butterworth, his 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 AND APPARATUS FOR HEATING AIR OR FOR DESICCA-
TING WET OR MOIST SUBSTANCES," being a communication to him from abroad,
by Jerôme Eugene Tourne, of New Orleans, in the State of Louisiana, United
States of America, upon the condition (amongst others) that he, the said

page_text: Joseph Heape Butterworth, his executors or administrators, by an instrument
in writing under his, or their, or one of their hands and seals, should par-
ticularly 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: And whereas the said Joseph
Heape Butterworth, departed this life on or about the Eighth day of November
One thousand eight hundred and sixty-one: And whereas by the last will and
testament in writing of the said Joseph Heape Butterworth, bearing date
the Twenty-fifth day of January, one thousand eight hundred and fifty-six,
the said Joseph Heape Butterworth appointed the said John Butterworth and
Henry Heape Butterworth, executors of his said will.
NOW KNOW YE, that I, the said John Butterworth, one of the executors
of the said Joseph Heape Butterworth, deceased, do hereby declare the nature
of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and.by the following statement
in writing, and on reference to the accompanying Drawings, (that is to
say):
The Invention relates to the novel employment and use of a metal or alloy
fusible at a low temperature, for the purpose of retaining heat imparted
thereto by fire, and in applying the heat so obtained to the drying of any
suitably required material. The apparatus consists in a vessel or receptacle
furnished with an arrangement of internal tubes similar to a multitubular
boiler, around which the fusible metal is disposed, and is heated to produce
heated air in the tubes, and which when once in a state of fusion may be kept
heated at a minimum consumption of fuel. The air thus heated is forced by
means of a blower or fan into the desiccating chamber or chambers, which are
provided with metallic cloth carriers to convey the substance under operation
through the chamber. The chambers are provided with an inclined bottom
to facilitate the escape of aqueous vapours, beneath which the heated air is
admitted, and the chambers may be connected by flexible or rigid joints or
otherwise arranged, the object being to economize fuel by maintaining the
beat once sufficiently obtained, to liquify the metal by keeping such molten
metal at a certain heat around the air tubes, which may be effected by a small.
amount of fuel.
In order that the Invention may be better understood, reference is bere
made to the accompanying Sheet of Drawings, in which different forms of
apparatus for effecting the object of the Invention are shewn, the course of
the water being clearly indicated by the arrows.

page_text: Fig. 1 represents a longitudinal section of one form of the heater, in which
-the tubes a, a, a, are shewn surrounded by the metal occupying the spaces
b, b, b, the said tubes extending directly from end to end of the case or
receptacle; Fig. 2 shews an arrangement in which the tubes form circuitous
passages for the purpose of increasing their heating surfaces; Fig. 3 shewing
a modification of the same, in which separate sets of tubes are arranged in the
same heater, the chambers c, c, forming communications between the different
sets of tubes, in such a manner as to cause the water to follow a circuitous
course in its passage through the heater, the effect being the same as in the
arrangement represented in Fig. 2; Figs. 4 and 5 are sections of Fig. 3,
taken on the dotted lines at each end, and Fig. 6 is a sectional view of an
arrangement in which a number of heaters, each filled with the metal or alloy,
and containing a set of tubes, are heated by one furnace.
Having now described the nature of the said Invention, together with the
method of carrying the same into practical effect, I wish it to be distinctly
understood, that I claim the application and use of a metal or an alloy of metals
in a molten state, to retain heat with the use of a minimum amount of fuel,
for the purpose of heating air by passing the same through tubes or passages
immersed in or in contact with the molten metal. I would here remark that
since the filing of the Provisional Specification for my said Invention, I have
ascertained that the application of heated air to the dessication of wet or moist
substance is not so novel or original as it was then considered to be, and I
therefore and hereby disclaim that portion of the Invention as referred to in
the title of the Letters Patent and embodied in the Specification thereof.
In witness whereof, I, the said John Butterworth, have hereunto set my
hand and seal, this Fourteenth day of January in the year of our Lord
One thousand eight hundred and sixty-two.
JOHN BUTTERWORTH. (L.S.)