IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS FOR HEATING AND MIXING THE MATERIALS EMPLOYED IN THE MANUFACTURE OF ARTIFICIAL FUEL, AND IN THE APPLICATION OF HEAT TO SUCH APPARATUS
Year: 1872

page_text: ETTERS PATENT to Thomas Edward Heath, Colliery Proprietor,
Thomas Evens, Civil and Mining Engineer, and Thomas Edward'
Heath, junior, Gentleman, all of Cardiff, in the County of Gla-
morganshire, for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION
OF APPARATUS FOR HEATING AND MIXING THE MATERIALS EMPLOYED IN THE
MANUFACTURE OF ARTIFICIAL FUEL, AND IN THE APPLICATION OF HEAT TO
SUCH APPARATUS."
Scaled the 4th October 1872, and dated the 13th July 1872.
PROVISIONAL SPECIFICATION left by the said Thomas Edward Heath,
Thomas Evens, and Thomas Edward Heath, junior, at the Office of:
the Commissioners of Patents, with their Petition, on the 13th July
1872.
We, THOMAS EDWARD HEATH, Colliery Proprietor, Thomas EVENS,
Civil and Mining Engineer, and THOMAS EDWARD HEATH, junior,
Gentleman, all of Cardiff, in the County of Glamorganshire, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN THE

page_text: CONSTRUCTION OF APPARATUS FOR HEATING AND MIXING THE MATERIALS EMPLOYED
IN THE MANUFACTURE OF ARTIFICIAL FUEL, AND IN THE APPLICATION OF HEAT ‘TO
SUCH APPARATUS," to be as follows :-
As near as practicable to the outlet of a boiler or other furnace flue or
flues we construct a horizontal cylindrical chamber of iron, brick, fire-
clay, or other suitable material of any convenient size, closed at both
ends from the external air, except for the passage in and out of the
material to be heated, and the steam and vapour generated therefrom.
By means of a pipe or flue, through a jet of superheated steam is
passed, the said chamber is connected with the flue of the furnace, the
waste heat from which, by the action of the steam jet, is drawn into the
said chamber, thereby effecting the thorough heating of the materials.
We have a shaft revolving within the centre of the chamber (the
bearings of the shaft are placed outside), upon this shaft are arms, to
which we fix a series of blades or agitators set with a slight degree of
screw.
The material to be heated is passed into the chamber immediately
over the inlet of the flue, & being caught up by the agitators is
gradually worked down to the outlet, where it is discharged heated and
ready to be pressed.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Edward Heath, Thomas Evens, and
Thomas Heath, junior, in the Great Seal Patent Office on the
11th January 1873.
'
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, THOMAS 2
EDWARD HEATH, Colliery Proprietor, THOMAS EVENS, Civil and Mining
Engineer, and THOMAS EDWARD HEATH, junior, Gentleman, all of
Cardiff, in the County of Glamorganshire, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters, Patent, bearing date the Thirteenth day of July, in the year of 3
our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give

page_text: and grant unto us, the said Thomas Edward Heath, Thomas Evens, and
Thomas Edward Heath, junior, Her special licence that we, the said
Thomas Edward Heath, Thomas Evens, and Thomas Edward Heath,
junior, our executors, administrators, and assigns, or such others as we,
the said Thomas Edward Heath, Thomas Evens, and Thomas Edward
Heath, junior, 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 Inven-
tion for "IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS FOR HEATING AND
MIXING THE MATERIALS EMPLOYED IN THE MANUFACTURE OF ARTIFICIAL FUEL, AND
IN THE APPLICATION OF HEAT TO SUCH APPARATUS," upon the condition
(amongst others) that we, the said Thomas Edward Heath, Thomas
Evens, and Thomas Edward Heath, junior, our executors or adminis-
trators, by an instrument in writing under our, or their, or one of their
hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what männer 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.
NOW KNOW YE, that we, the said Thomas Edward Heath, Thomas
Evens, and Thomas Edward Heath, junior, do hereby declare the
nature of our said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement and accompanying Drawings (that is to say):-
As near as possible to the outlet of a boiler or other furnace flue or
flues we construct a hollow cylindrical chamber of iron, brick, fire-clay,
or other suitable material of any convenient size, closed at both ends from
O the external air, except for the passage in and out of the material to be
heated, and the steam and vapour generated therefrom.
By means of a pipe or flue, through which a jet of superheated steam
is passed, the said chamber is connected with the flue of the furnace,
the waste heat from which, by the action of the steam jet, is drawn
5 into the said chamber, thereby effecting the thorough heating of the
material.

page_text: We have a shaft revolving within the centre of the chamber; the
bearings of the shaft' are placed outside; upon this shaft are arms, to
which we affix a series of blades or agitators set with a slight degree
of screw.
'
The material to be heated is passed into the chamber immediately over
the inlet of the flue, and being caught up by the agitators is gradually
worked down to the outlet, where it is discharged heated and ready to
be pressed.
In order that our Invention may be distinctly understood, we have
accompanied this Specification with a Sheet of Drawings with six Figures,
in which similar letters refer to similar parts.
Fig. 1 is an elevation; Fig. 2, a longitudinal section; Fig. 3. an end
elevation; Fig. 4, a sectional plan; Fig. 5, a side elevation; and Fig. 6,
a plan.
A is a flue from a furnace; B, pipes for superheating steam, and con-
veying it to the steam blast nozzle C; D is the chamber referred to for
heating the materials; E is the hopper through which materials are
supplied to the chamber D; F is a flue for conveying the waste heat
away. from the chamber D; G is the shaft and its arms, which is made
to revolve by means of gearing affixed outside the heater D, and worked
by a steam engine or other motive power for the purpose of agitating
and mixing the materials in the heating chamber; H, H, H, are dampers
and arrangements to regulate the quantity of heated air entering and
leaving the chamber D; K is a valve for regulating the steam blast;
L is a valve and levers to regulate 'the supply of materials to the
chamber D; M is an opening in the chamber D by which the materials,
after being mixed and heated, can be discharged, and in fit condition to
be moulded and pressed.
Having thus described our said Invention, and the manner of carrying
the same into effect, we claim,―
Firstly. The use of a chamber constructed substantially as hercin
described, for the purpose of heating, or drying, and mixing the materials
to form artificial fuel, in the manner herein specified.
Secondly. The combination of parts forming apparatus such as is
herein described and used in like manner for utilizing the heat or heated.

page_text: ases from a boiler or other furnace flue, and enabling superheated
team to be employed in combination with the said gases, for the purpose
f heating materials in the manufacture of artificial fuel.
In witness whereof, we, the said Thomas Edward Heath, Thomas
Evens, and Thomas Edward Heath, junior, have hereunto set our
hands and seals, this First day of January, in the year of our
Lord One thousand eight hundred and seventy-three.
71
THOS. EDW. HEATH.
THOMAS EVENS.
(L.S.)
(L.S.)
THOMAS EDWARD HEATH, JUNIOR. (L.S.)