PRODUCING HEAT FOR GENERATING STEAM, AND APPLI- CABLE TO AND FOR OTHER PURPOSES FOR WHICH THIS INVENTION HAS NOT BEEN HITHERTO USED, UNDER THE NAME AND TITLE OF 'A HEAT PRODUCER AND STEAM GENERATOR.
Year: 1852

page_text: LETTERS PATENT to John Cronin Jeffcott, of No. 1, Anglesea
Street, in the County of the City of Cork, Agriculturist, for the
Invention for "PRODUCING HEAT FOR GENERATING STEAM, AND APPLI-
CABLE TO AND FOR OTHER PURPOSES FOR WHICH THIS INVENTION HAS
NOT BEEN HITHERTO USED, UNDER THE NAME AND TITLE OF 'A HEAT
PRODUCER AND STEAM GENERATOR.'
Scaled the 5th March 1853, and dated the 6th October 1852.
PROVISIONAL SPECIFICATION left by the said John Cronin Jeffcott
at the Office of the Commissioners of Patents, with his Petition,
on the 6th October 1852.
I, JOHN CRONIN JEFFCOTT, do hereby declare the nature of the said
Invention for "PRODUCING HEAT FOR GENERATING STEAM, AND APPLICABLE
TO AND FOR OTHER PURPOSES FOR WHICH THIS INVENTION HAS NOT BEEN
HITHERTO USED, UNDER THE NAME AND TITLE OF A HEAT PRODUCER AND
STEAM GENERATOR,"" to be as follows:-
First, the introduction into the furnaces of steam boilers, and into
other furnaces for other purposes, a second range of fire bars, and a
range or ranges of metallic gratings, and likewise one or more metallic

page_text: plates, and likewise one or a greater number of metallic cylinders or
vessels, extending the lenght and breath of the various furnaces, or
such other shorter lenghts or breaths as may be found to answer the
existing flues of boilers and engines as this Invention may be applied to.
And I claim as my Invention the sole right to use the space now
being between the fire bars of the present furnaces and the tops or
domes of the said furnaces, and now as used only occupied with fuel,
for the above purposes, and to have passages and pipes inside and out-
side the furnaces used for this Invention to supply said apparatus with
air and water, and various substances abounding in clements required for
producing heat by being decomposed and brought into a state of ignition
by chymical combination; and to have passages inside and outside said
furnaces for carrying off' all redundant gazes that may be in excess, and
make such improvements in furnaces as may suit all engines at present
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Cronin Jeffcott in the Great Seal Patent
Office, on the 1st April 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JOHN CRONIN JEFFCOTT, of No. 1, Anglesea Street, in the County of the
City of Cork, Agriculturist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by...Her
Letters Patent, bearing date the Sixth day. of October, in the year
of our Lord One thousand eight hundred and fifty-two, in the sixteenth
year of Her reign; did, for Herself, Her heirs and successors, give and
grant unto me, the said John Cronin Jeffcott. Her special licence that
I, the said John Cronin Jeffcott, my executors, administrators, and
assigns, or such others as I, the said John Cronin Jeffcott, my execu--
tors; 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 amight make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the.
Channel Islands, and Isle of Man, an Invention for "PRODUCING HEAT:

page_text: FOR ĠENERATING-STEAM, AND APPLICABLE TO AND FOR OTHER PURPOSES POR
WHICH THIS INVENTION HAS NOT BEEN HITHERTO USED, UNDER THE NAME AND
TITLE OF 'A HEAT PRODUCER AND STEAM GENERATOR,"" upon the condition
(amongst others) that I, the said John Cronin Jeffcott, by an instru
ment in writing under my hand and seal, 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.
i
NOW KNOW YE, that I, the said John Cronin Jeffcott, do
hereby declare the nature of my said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement:
My Invention for producing heat for generating steam, and for other
purposes for which the heat so produced is applicable to, to be and to
consist of, first, the introduction into the furnaces of steam boilers, and
into every description of furnace or fire-place where heat is produced,
of a second range of fire bars and metallic plates, and likewise a range
of metallic gratings extending the length and breadth of the furnace, or
such other shorter lengths as may be found to answer the flues, and like-
wise the introduction into the furnaces of one or a greater number of
metallic cylinders, or retorts, with a mouth-piece or cover outside
said furnace, through which are introduced various substances abound-
ing in the elements required for producing heat, such as coals, timber,
or any dry animal or vegetable matter; and I claim as my Invention
the sole right to use and to occupy all the space between the lower
range of fire bars now in use, and as used simply occupied with ignited
coals, and the spaces extending to the sides of the furnace at both sides
of said fire bars and the top or dome of the furnace with this ap-
paratus, and for these purposes. And I claim by this apparatus the
means of slowly consuming the ignitable materials used, and the pro-
duction of a cárbonic oxide in place of the carbonic acid generated by
the usual plans for combustion; the said carbonic oxide being the
material to be used for keeping the heat in the furnace, and the heating
the retorts, metallic plates, gratings after being oxidized in the retorts,

page_text: or other metallic vessels, and then removed to the furnace. And the
said apparatus further consists of a pipe or pipes or flues to conduct
the redundant gases generated in the furnace to a chamber, and then
by a series of tubes or pipes placed in the water cistern or tank that
supplies the boiler with water, where they are condensed and further
deprived of their caloric, and received in a chamber, whence they are
carried to the interior of the boiler, where steam is generated in greater
volume by their addition. And I claim the right to use the said ap-
paratus together or in such separate parts as may be found to suit
steam engines of different descriptions, or in different positions, and to
place the water tanks containing the said tubes, chambers, cisterns, and
feed pipes in such positions as may be found to suit the said different
descriptions of boilers and engines.
In witness whereof, I, the said John Cronin Jeffcott, have here-
unto set my hand and seal, this First day of April, in the year
of our Lord One thousand eight hundred and fifty-three.
JOHN CRONIN JEFFCOTT. (LS.)