IMPROVEMENTS IN APPARATUS FOR ECONOMIZING FUEL, AND PREVENTING THE PRODUCTION OF SMOKE IN STEAM BOILER AND OTHER FURNACES
Year: 1880

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for an Invention of
"IMPROVEMENTS IN APPARATUS FOR ECONOMIZING FUEL, AND PREVENTING
THE PRODUCTION OF SMOKE IN STEAM BOILER AND OTHER FURNACES."
from ahmood hu Lóan Tuilliard of Paris, France.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 16th November 1880.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent
"IMPROVEMENTS IN APPARATUS FOR
Agents, Southampton Buildings, London.
ECONOMIZING FUEL, AND PREVENTING THE PRODUCTION OF SMOKE IN STEAM
BOILER AND OTHER FURNACES." [A communication from abroad by Léon
Juilliard, of Paris, France.]
This Invention relates to improved apparatus for ensuring the economical com-
bustion of fuel in steam boiler and other furnaces, and for preventing the production
of smoke, the said Invention being applicable to all kinds of furnaces employed for
industrial or manufacturing purposes, whether the fuel used be mineral or
vegetable.
In carrying the said Invention into practice I make use of steam which is dried,
re-heated, and super-heated, and which serves as a vehicle for drawing air and
causing it to enter the furnace. This steam must be as dry as possible; I there-
fore cause steam to enter a special drying and re-heating apparatus, which is made
of extremely refractory material, and placed under the influence of a very high
temperature. The super-heated steam is then led by pipes outside the furnace into.
a blowing apparatus (also made of refractory material), which apparatus is placed
in the front part of the furnace. This blower is so arranged that it may be
detached with facility, and the attendant can at any time take the same off and
clean it, and then replace it, and the two apparatus, that is to say, the superheater
and the blower, are quite independent of each other, although they are used
simultaneously.
By employing my Invention all the inconveniences experienced with analogous
apparatus hitherto in use are obviated, and I effect in the most perfect manner

page_text: possible the consumption of smoke, economy of fuel, and the production of a greater
amount of steam with equal heating surfaces than is obtainable under ordinary
arrangements. Moreover, the arrangements I use enable me to protect my
apparatus from the too direct action of the fire, and thus to ensure their being
always maintained in satisfactory order, and also to ensure their durability, and I
so arrange the parts that they can be taken off and replaced even during the
working without in any way interfering with the machinery or the work of the
attendants.
The form and arrangement of the apparatus I employ may be varied as may be
deemed necessary, but important features of my said Invention consist in the facts
that the parts are capable of being removed, that the arrangement thereof permits
of their being rendered independent of each other, and that they may be easily
fixed, examined, and kept in good order.
In applying the said Invention to a fixed or stationary boiler, a pipe is provided
whereby steain is taken from the dome of the boiler and led into an apparatus,
where it is strongly superheated, and then passes through an outer pipe into a
blower or blowing apparatus, which is provided with a sleeve coupling or inter-
mediary piece so made as to prevent any water being carried forward with the
steam. This blower, being attached to the front plate by an exterior coupling
plate or flanged piece, can readily be removed and examined, and replaced when
necessary.
My said apparatus, when designed to be applied to a stationary boiler, comprises
the following parts, that is to say:-I provide a steam-supply pipe having a valve
or cock, which pipe is coupled with a superhetaing apparatus, at the lower part of
which there is a cock. This apparatus serves for re-heating and superheating the
steam, which passes from the same to the blower or blowing apparatus through a
pipe which is provided with a cock or valve. There is a perforated pipe in the
superheater, through which steam enters the latter. A screen or guard is fixed
above the superheater, and is designed to protect the blowing apparatus from the
heat. The pipe leading from the superheater to the blower is secured to the front
of the furnace by a piece bolted thereto. The dry superheated steam is dispersed
in jets in a downward direction from the blower to the fuel.
When the said Invention is to be applied to the furnace of a locomotive I employ
a steam supply pipe fitted with a purifying sleeve or coupling, which has in its
interior sheets of wire-gauze for arresting any water that may have been brought
to the same. The steam thence passes into the superheater, whence it is by an
exterior pipe led into the blower, which is also provided with a purifying sleeve,
and which enters the furnace through a hollow stay.
The parts are as follows, that is to say --There is a purifying syphon, through
which steam enters the supply pipe, the latter being attached to the outside of the
boiler by a plate bolted thereto. A controlling cock is provided in the said supply
pipe, and connected with the latter there is a separator or device designed to
prevent the introduction of water, and provided with a waste cock. The supply
pipe leads into the superheater, and the latter is connected with the blower by
means of another pipe, in which there is a cock or valve, and which is provided
with a sleeve or coupling attached to the said blower, in which sleeve water is
arrested. The superbeater is made of very refractory metal, and is placed in an
upper corner of the furnace. The blower has an outside coupling plate or disc, by
means of which it is attached to the furnace in such a manner that it may be readily
removed when desired.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Great Seal Patent Office on the
16th May 1881.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent
Agents, Southampton Buildings, London. "IMPROVEMENTS IN APPARATUS FOR
ECONOMIZING FUEL, AND PREVENTING THE PRODUCTION OF SMOKE IN STEAM-
BOILER AND OTHER FURNACES." A communication from abroad by Léon Juillard,
of Paris, France.
This Invention relates to improved apparatus for ensuring the economical
combustion of fuel in steam boiler and other furnaces and for preventing the
production of smoke, the said Invention being applicable to all kinds of furnaces
employed for industrial or manufacturing purposes, whether the fuel used be mineral
or vegetable.
In carrying the said Invention into practice I make use of steam which is dried,
reheated, and superheated, and which serves as a medium for drawing air and
causing it to enter the furnace.
According to the said Invention I use the steam when it is as dry as practicable,
and conduct it into a special drying and reheating apparatus, made of extremely
refractory material, and exposed to the action of a very high temperature. The
super-heated steam is thence conducted into a blower of small size (also made of
refractory material) by pipes or conduits outside the furnace.
This blower is easily detachable, and the attendant can at any time remove the
same and clean it and then replace it, and the superheating and the blowing
apparatus which I use are quite independent of each other, although they operate
simultaneously.
By the employment of my Invention all of the inconveniences experienced with
analogous apparatus hitherto in use are obviated, and I attain in the most
satisfactory manner the consumption of the smoke, economy of fuel, and the
production of a greater proportionate quantity of steam than would be produced
by a boiler having an equal heating surface, but not provided with these
improvements.
The arrangements I employ enable me to protect my apparatus from the too
direct action of the fire, thus ensuring their being always maintained in satisfactory
order and their durability; the said apparatus can be removed and replaced even
during the working, without in any way interfering either with the arrangement
of the machinery to which they are applied or with the operations of the
attendants.
In the accompanying Drawing I have represented the said apparatus applied to
the furnace of a stationary boiler and to that of a locomotive, but it will be
understood that I may vary the form and arrangement as may be necessary to any
extent which will not affect the main features of my Invention, that is to say,
the facility of detachment of the parts or the arrangement whereby they are
rendered independent of each other, so as to be readily removed to facilitate their
fixing and examination and the keeping of them in good order or condition.
As shown in Figures 1, 2, 3, and 4 (which represent the apparatus designed to
be applied to a stationary boiler), steam is taken from the dome of the boiler and
conducted into an apparatus or chamber E, where it is highly superheated; it then
passes through an exterior conduit or pipe into the blower M provided with a
sleeve or intermediary piece, so arranged as to prevent any water being carried
away.
The blower being supported by and fixed on the front-plate by an exterior stay
or coupling-piece P, can easily be examined and replaced by another if required.
When the said apparatus is to be applied to a locomotive-furnace, the same is
arranged as shown in Figures 5 and 6, and consists of a steam-supply pipe provided
with a purifying sleeve or coupling D provided in its interior with sheets of wire-
gauze for the purpose of arresting any water that might be carried forward.

page_text: Through this pipe steam enters the rehcating apparatus I, whence it passes by an
exterior pipe or conduit L into the blower G provided with a purifying sleeve, and
enters the furnace through a bollow-stay J, as indicated in the Drawing,
In both cases the apparatus may be readily inspected and may be repaired with
great facility. In Figure 7, I have illustrated a somewhat modified form of blower
which is more simple than that hereinbefore specified.
The following explanatory list of parts will indicate with sufficient clearness the
means I employ for the practice of this Invention.
The parts for stationary boilers are as follows, that is to say:-
A is the steam supply-pipe; B, the steam admission cock; C, C, are couplings for
uniting the pipe A with the reheating or superheating apparatus; D is a purifier-
valve; E, a reheating and superheating apparatus; F, a coupling for connecting
the pipes conducting the superheated steam; G, a perforated tube admitting the
steam into the superheater; H is a pipe for conducting the superheated steam;
J, a stop cock for operating the blower of the furnace; K, a tube connecting the
cock J with the blower; L is a screen protecting the movable blower M against
the radiating heat, the said movable blower M being provided with a purifying
sleeve or coupling; N is the dead-plate of the furnace; O, O, are the fire-bars;
P is a coupling whereby the pipe K is attached to the exterior of the furnace ;
Q, Q, Q, indicate jets of steam; and S is the boiler.
The parts used for locomotives are as follows:-
A is a purifying syphon; B, a coupling plate for the steam supply-pipe; C, the
stop-cock for operating the blower; D is a separator or extractor mounted on the
steam-pipe to prevent the passing of water along with the steam, the said separator
is provided with a waste-cock; E is the steam supply pipe; F is a movable sleeve
with a separator tube attached to the blower or steam-blowing apparatus G; H is
an exterior coupling plate which allows the last named apparatus to be removed;
I is the reheating and superheating apparatus formed of highly refractory metal
mounted in the upper angle of the furnace; J is a fixed stay passing through the
water-space, to afford room for the blower G; K, K, K, indicate jets of steam;
Lis a tube for admitting superheated steam to the blower G; M is a stop-cock for
operating the blower of the furnace.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it understood
that I claim the improvements in the construction of apparatus for ensuring the
economical combustion of fuel in furnaces (as above described and illustrated in the
accompanying Drawing) operating by means of dry and superheated steam, and
characterized by the following features, that is to say,―-
First. The arrangements or means for ensuring the drying and superheating of
the steam, substantially as set forth.
Second. The detachable blowing apparatus provided with a movable purifying
sleeve, and so arranged as to be easily removed or detached even whilst the boiler
or furnace is in operation, substantially as and for the purpose specified.
Third. The arrangements or means, as hereinabove described, whereby the
superheating and the blowing apparatus are rendered independent of each other
and the fixing and detachment of the same are facilitated.
Fourth. The combination of the superheating and the blowing apparatus,
substantially in the manner and for the purpose set forth.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Sixteenth day of May, in the year of our Lord One
thousand eight hundred and eighty one.
TUM DODT TATT