IMPROVEMENTS IN MEANS AND APPARATUS TO ENABLE BOILERS AND FURNACES TO HEAT EXPEDITIOUSLY AND CONSUME THEIR SMOKE, AND GENERATE STEAM MORE QUICKLY THAN HERETOFORE."
Year: 1868

page_text: LETTERS PATENT to William Maudslay and Washington Champion
Rawlins, both of Liverpool, in the County of Lancaster, Engineers,
for the Invention of "IMPROVEMENTS IN MEANS AND APPARATUS TO
ENABLE BOILERS AND FURNACES TO HEAT EXPEDITIOUSLY AND CONSUME THEIR
SMOKE, AND GENERATE STEAM MORE QUICKLY THAN HERETOFORE."
PROVISIONAL SPECIFICATION left by the said William Maudslay and
Washington Champion Rawlins at the Office of the Commissioners
of Patents, with their Petition, on the 20th October 1868.
We, WILLIAM MAUDSLAY and WASHINGTON CHAMPION RAWLINS,
both of Liverpool, in the County of Lancaster, Engineers, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN MEANS
AND APPARATUS TO ENABLE BOILERS AND FURNACES TO HEAT EXPEDITIOUSLY AND
CONSUME THEIR SMOKE. AND GENERATE STEAM MORE QUICKLY THAN HERETOFORE,',
to be as follows:-
The object of this Invention is to enable boilers and furnaces to heat
more expeditiously, to consume their smoke more thoroughly, and make
steam more quickly than those can be done by any. arrangement

page_text: hitherto used or known. This we effect by the use of the apparatus
hereafter described.
This apparatus as usually constructed consists of a case placed or
constructed within the furnace, and where a boiler is used connected
with the boiler so as if desired to form a part of it. The apparatus has
air pipes passing through the water (which is supplied to the apparatus
as hereafter described, which air pipes have suitable openings conveying
the air over and into the coals or fuel, thereby causing complete com-
bustion of the gases evolved from the burning fuel. The water from
the boiler is admitted to the apparatus and circulates around the air
pipes.
By the above-described arrangements formation of smoke is prevented
and more steam is generated. The apparatus may be used as a bridge
to the furnace, the bottom may be removeable, shutters may be supplied
to it, and it may have a bearing bed, and the whole arrangement may
be self-acting. The apparatus will be supplied with water either by
connection with the boiler (when in a boiler furnace) or be supplied
from any other source we may deem good, by which means greater
durability of the apparatus is obtained, and by which when in connection
with a boiler generation of steam may be very considerably aided and
expedited, and in that case there may (if desired) be one pipe to the
coolest water in the boiler and one to the hottest. The supply of air
to the apparatus is obtained by any or either of many various modes, as
for instance, direct from the ash-pit, or by pipes, channels, or conduits,
leading to the external atmosphere, whether in front or at back, or at
top or at bottom or at the sides of furnace or boiler, or through the boiler,
along the flues or otherwise. The great feature of our Invention being
the obtaining of an independent air supply, these air suppliers or
chambers or channels or conduits may have clampers or shutters or
valves, or any means of checking and controlling the air supply of
such form as we shall find most desirable
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Maudslay and Washington Champion
Rawlins in the Great Seal Patent Office on the 20th April 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
MAUDSLAY and WASHINGTON CHAMPION RAWLINS, both of Liverpool,
in the County of Lancaster, Engineers, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of October, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said William Maudslay and Washington
Champion Rawlins, Her special licence that we, the said William
Maudslay and Washington Champion Rawlins, our executors, adminis-
trators, and assigns, or such others as we, the said William Maudslay
and Washington Champion Rawlins, 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 Invention for "IMPROVEMENTS IN MEANS AND APPAPATUS TO
ENABLE BOILERS AND FURNACES TO HEAT EXPEDITIOUSLY AND CONSUME THEIR
SMOKE. AND GENERATE STEAM MORE QUICKLY THAN HERETOFORE," upon the
condition (amongst others) that we, the said William Maudslay and
Washington Champion Rawlins, our executors or administrators, 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 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 we, the said William Maudslay and Washington
Champion Rawlins, 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:-
The object of this Invention is to enable boilers and furnaces to heat
more expeditiously, to consume their smoke more thoroughly, and make
steam more quickly than can be done by any arrangements hitherto
used or known. This we effect by the use of apparatus of the character
hereafter described.
This apparatus is placed or constructed within the furnace, and where
a boiler is used is connected with the boiler so as if desired to form a
part of it. The apparatus has air pipes, ducts, or spaces passing through
the water or conducting the air between pipes, ducts, or spaces containing

page_text: water, the water being supplied to the apparatus as hereafter described,
which air pipes, ducts, or spaces have suitable, openings conveying the
air over and on to the coals or fuel, thereby causing complete combustion
of the gases evolved from the burning fuel. The water from the boiler
is admitted to the apparatus and is made to circulate through it.
7X
By the above-described arrangements, formation of smoke is prevented
and more steam is generated The apparatus may be used as a bridge to
the furnace, the bottom may be removable, shutters as hereafter
described may be applied to it, and it may have a bearing bed, and the
whole arrangement may be rendered self-acting, as for instance, by a
lever on the door and counterbalance weight. The apparatus will be
supplied with water either by connection with the boiler (when in a
boiler furnace) or from any other source deemed desirable, by which
means greater durability of the apparatus is obtained, and whereby when
in connection with a boiler, generation of steam may be very considerably
aided and expedited, and in that case there may (if desired) be one
pipe to the coolest water in the boiler and one to the hottest. The
supply of air to the apparatus is obtained by any or either of many
various modes, as for instance direct, from the ash-pit, or by pipes,
channels, or conduits leading to the external atmosphere, whether in
front or at back, or at top or at bottom, or at the sides of furnace or
boiler, or through the boiler, along the flues, or otherwise. The great
feature of our Invention being the obtaining of an air supply protected
by or in connection with the water arrangements herein set forth, the
air suppliers, chambers, channels, or conduits may have dampers,
shutters, or valves, or any means of checking and controlling the air
supply of such form as found most desirable.
In order that our said Invention may be more readily understood
Sheets of illustrative Drawings accompany these Presents.
DESCRIPTION OF THE DRAWINGS.
Fig. 1, perspective sectional view of apparatus; Fig. 2, side view of
one arrangement of our apparatus; Fig. 3, longitudinal section of same;
Fig. 4, end view of same; Fig. 5, transverse section of same; Fig. 6,
vertical section showing perforated lining; Fig. 7, bed plate to support
perforated lining and coil with an air receiver attached and an entrance
a for air from the front of the ash-pit; Fig. 8, perforated lining for pro-
tecting coil from cool air, and for more thoroughly distributing or for
intensifying the discharge of the air.

page_text: In the said Drawings certain letters denote certain parts; the state-
ment of these letters and of the parts denoted thereby will be found
placed on the same Sheets as the said Drawings.
Having now particularly described and ascertained the nature of the
said Invention, and in what manner the same is to be performed or put
in practice, we hereby declare that we claim, the "Improvements in
Means and Apparatus to Enable Boilers and Furnaces to Heat Expe-
ditiously, and Consume their Smoke, and Generate Steam more quickly
than heretofore," as herein-before set forth and described, in which the
obtaining of an air supply from any convenient source protected by or
in connection with the water arrangements herein-before stated is a
peculiar feature, it being understood that we are not restricted to nor do
we claim the particular forms and constituent details shown by the
Drawings, and herein described, when considered per sc and apart from
the object and purposes of our said Invention as hercin set forth and
described.
In witness whercof, we, the said William Maudslay and Washington
Champion Rawlins, have hereunto set our hands and seals, this
15th day of April, in the year of our Lord One thousand eight
hundred and sixty-nine.
5
Witness,
H. LARCHIN,
3, Shaw's Buildings,
Liverpool.
WILLIAM MAUDSLAY. (L.S.)
W. C. RAWLINS.
(L.S.)

page_text: is luken.
CCC Coil
Air supply pipe to convey arternal air
underneath bars to air receiver (Fig. 7)
beneath coil whence it is discharged
through the interstices of coil into th
Furnace
Pipe by which water is conveyed from
the coil
Ripe by which water is conveyed
from coil into upper part of boiler
This pipe ray or may not lead up
into slam space or it may cease.
where dolled lines commences.