In. PROVEMENTS IN THE PRODUCTION OF HEAT FOR HEATING THE BOILERS OF MARINE STEAM ENGINES AND IN THE FURNACES AND APPARATUS USED FOR THAT PURPOSE
Year: 1869

page_text: LETTERS PATENT to John Alexander Forbes Suter, of the City of
Hereford, Banker, and Thomas Callender Hinde, of Fownhope, near
Hereford, aforesaid, Colliery Proprietor, for the Invention of "In.
PROVEMENTS IN THE PRODUCTION OF HEAT FOR HEATING THE BOILERS OF
MARINE STEAM ENGINES AND IN THE FURNACES AND APPARATUS USED FOR
THAT PURPOSE.”
Sealed the 25th May 1869, and dated the 10th February 1869.
PROVISIONAL SPECIFICATION left by the said John Alexander Forbes
Suter and Thomas Callender Hinde at the Office of the Commis-
sioners of Patents, with their Petition, on the 10th February 1869.
We, JOHN ALEXANDER FORBES SUTER, of the City of Hereford,
Banker, and THOMAS CALLENDER HINDE, of Fownhope, near Hereford,
aforesaid, Colliery Proprietor, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE PRODUCTION OF HEAT FOR HEATING THE

page_text: BOILERS OF MARINE STEAM ENGINES AND IN THE FURNACES AND APPARATUS USED
FOR THAT PURPOSE," to be as follows:-
Our Invention consists of the improvements herein-after described in
effecting the combustion of fuel for the production of heat in the boiler
furnaces of marine steam engines, and in the arrangement herein-after
described of the parts of the said furnaces, and in apparatus for pro-
ducing gaseous fuel.
Our improvements in effecting the combustion of fuel in the said
furnaces consist in producing a gaseous fuel by directing atmospheric
air upon or through ignited coal or coke or other solid fuel in an oven or
chamber, the said atmospheric air being forced over or through the said
ignited fuel by means of a fan or other blowing' machine or apparatus.
There is thus produced a gaseous fuel consisting essentially of carbonic
oxide mixed with nitrogen. This gaseous fuel is conducted to the
furnace or fire-place of the boiler and mixed with atmospheric air, and
upon being ignited heats the boiler and generates steam in the said
boiler. By the use of a blast of air obtained by a fan or other blowing
machine or apparatus a complete control is obtained over the production
of the said gaseous fuel, which cannot be obtained when the draught of
a chimney or stack is employed to determine the current of atmospheric
air through or over the solid fuel.
Our improvements in arranging the parts of furnaces of marine steam
engine boilers and apparatus for producing and using the said gaseous
fuel are as follows:-The chamber or chambers in which the gaseous
fuel is produced are made of fire-brick cascd with iron plates. Their
size and shape may be varied to suit the quantity of gaseous fuel to be
produced and the locality in which they are to be fixed. The said
chambers are closed at top by the valve arrangement known as the cup
and cone, or by any of the other well-known arrangements, whereby
they may be filled without the escape of any material quantity of gas.
The blast of air is supplied by a fan or other blowing machine, and is
introduced through tuyeres situated by preference near the bottoms of
the said chambers. The bottoms of the said chambers, which are made
of iron lined with fire-brick, are made capable of opening upon hinges
or otherwise for the purpose of permitting the removal of the clinker
which forms about the tuyeres. By the opening of the bottoms of the

page_text: chainbers this clinkers is received into boxes or waggons and removed;
or the clinker may be fluxed by means of limestone mixed with the solid
fuel, and the slag produced allowed to run through an aperture into a
box or waggon. The outlet tube by which the gaseous fuel is conveyed
from the said chambers to the combustion chamber of the furnace is
situated by preference at the tops of the said chambers, but its position
may be varied. The gaseous fuel is conducted to the combustion
chamber under the boiler, where it is mixed with atmospheric air and
ignited. We prefer to place the gas-producing chambers above the
boiler, so that in case of leakage or other casualty to the vessel the
drowning of the fire, which is frequently the cause of great disaster, may
be avoided. The combustion chamber of the boiler furnace consists of
a flue or flues extending under, through, or around the boiler, and having
only the required openings or passages for the introduction of the
gaseous fuel and the required quantity of atmospheric air and the escape
of the products of combustion.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Alexander Forbes Suter and Thomas Callender
Hinde in the Great Seal Patent Office on the 6th August 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
ALEXANDER FORBES SUTER, of the City of Hereford, Banker, and
THOMAS CALLENDER HINDE, of Fownhope, near Hereford, aforesaid,
Colliery Proprietor, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Tenth day of February, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said John Alexander Forbes Suter and Thomas
Callender Hinde, Her special licence that we, the said John Alexander
Forbes Suter and Thomas Callender Hinde, our executors, adminis-
trators, and assigns, or such others as we, the said John Alexander
Forbes Suter and Thomas Callender Hinde, 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,

page_text: 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 "IMPROVEMENTS IN THE PRODUCTION
OF HEAT FOR HEATING THE BOILERS OF MARINE STEAM ENGINES AND IN THE
FURNACES AND APPARATUS USED FOR THAT PURPOSE," upon the condition
(amongst others) that we, the said John Alexander Forbes Suter and
Thomas Callender Hinde, our executors or administrators, by an instru-
ment in writing under our or their hands and seals, or under the hand
and seal of one of us or them, 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,
NOW KNOW YE, that I, the said Thomas Callender Hinde, on behalf
of myself and the said John Alexander Forbes Suter, 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 thereof, that is to say:-
Our Invention consists of the improvements herein-after described in
effecting the combustion of fuel for the production of heat in the boiler
furnaces of marine steam engines, and in the arrangement herein-after
described of the parts of the said furnaces and in apparatus for pro-
ducing gaseous fuel.
Our improvements in effecting the combustion of fuel in the said
furnaces consist in producing a gaseous fuel by directing atmospheric
air upon or through ignited coal or coke or other solid fuel in an oven or
chamber, the said atmospheric air being forced over or through the said
ignited fuel by means of a fan or other blowing machine or apparatus.
There is thus produced a gaseous fuel consisting essentially of carbonic
oxide mixed with nitrogen. This gaseous fuel is conducted to the
furnace or fire-place of the boiler and mixed with atmospheric air, and
upon being ignited heats the boiler and generates steam in the said
boiler. By the use of a blast of air obtained by a fan or other blowing
machine or apparatus complete control is obtained over the production
of the said gaseous fuel, which cannot be obtained when the draught of
a chimney or stack is employed to determine the current of atmospheric
air through or over the solid fuel.

page_text: Our improvements in arranging the parts of furnaces of marine steam
engine boilers and apparatus for producing and using the said gaseous
fuel are as follows:-The chamber or chambers in which the gaseous
fuel is produced are made of fire-brick cased with iron plates. Their
size and shape may be varied to suit the quantity of gaseous fuel to be
produced and the locality in which they are to be fixed. The said
chambers are closed at top by the valve arrangement known as the cup
and cone, or by any of the other well-known arrangements, whereby
they may be filled without the escape of any material quantity of gas.
The blast of air is supplied by a fan or other blowing machine, and is
introduced through tuyeres situated by preference near the bottoms of
the said chambers. The bottoms of the said chambers, which are made
of iron lined with fire-brick, are made capable of opening upon hinges
or otherwise for the purpose of permitting the removal of the clinker
which forms about the tuyeres. By the opening of the bottoms of the
chambers this clinker is received into boxes or waggons and removed;
or the clinker may be fluxed by means of limestone mixed with the solid
fuel, and the slag produced allowed to run through an aperture into a
box or waggon. The outlet tube by which the gaseous fuel is conveyed
from the said chamber to the combustion chamber of the furnace is
situated by preference at the tops of the said chambers, but its position
may be varied. The gaseous fuel is conducted to the combustion
chamber under the boiler, where it is mixed with atmospheric air and
ignited. We prefer to place the gas-producing chambers above the
boiler, so that in case of leakage or other casualty to the vessel the
drowning of the fire, which is frequently the cause of great disaster, may
be avoided. The combustion chamber of the boiler furnace consists of
a flue or flues extending under, through, or around the boiler, and having
only the required openings or passages for the introduction of the
gaseous fuel and the required quantity of atmospheric air and the escape
of the products of combustion.
Having described the nature of our said Invention, and the manner in
which the same is to be performed, we wish it to be understood that we
do not limit ourselves to the precise details herein described, as the same
may be varied without departing from the nature of our Invention; but
we claim as our said Invention, the production of heat for heating the
boilers of marine steam engines, and the construction and arrangement

page_text: herein described.
In witness whereof, I, the said Thomas Callender Hinde, have
hereunto set my hand and seal, this Fifth day of August, in
the year of our Lord One thousand eight hundred and sixty-nine.
Witness,
THOMAS CALLENDER HINDE. (L.S.)
RICHARD SKERRETT,
Clerk to George Shaw,
Birmingham.