IMPROVEMENTS IN LAND AND MARINE BOILERS AND THEIR FURNACES, AND ALSO IN FURNACES USED FOR THE MANUFACTURE OF IRON, AND OTHER PURPOSES
Year: 1874

page_text: LETTERS PATENT to Simon Regan, of Bow, in the County of
"
Middlesex, Engineer, for the Invention of 'IMPROVEMENTS IN LAND
AND MARINE BOILERS AND THEIR FURNACES, AND ALSO IN FURNACES USED FOR
THE MANUFACTURE OF IRON, AND OTHER PURPOSES."
Sealed the 28th May 1875, and dated the 8th December 1874.
I, SIMON REGAN, of Bow, in the County of Middlesex, Engineer, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
LAND AND MARINE BOILERS AND THEIR FURNACES, AND ALSO IN FURNACES USED
FOR THE MANUFACTURE OF IRON, AND OTHER PURPOSES," to be as follows:-
The first part of Invention has reference to an improved arrange.
my
ment of steam boilers both for marine and land purposes. The first
form is constructed of three cylinders standing vertically, the one being
placed within the other at suitable distances apart, which form the water
Price 8d1

page_text: $
egg
"
spaces, and constructed sufficiently large for a man to fix the tubes
which pass into the centre cylinder, both ends of which are
ended, the top having a man hole; the lower end next the furnace being
connected to a wrought-iron conical down pipe which passes down
the centre of the furnace grate. By means of a circular flange attached
to this pipe suitably constructed the furnace is supported at centre
either as fixed or for rotary motion. Attached to the end of the conical
down pipe is a four-way branch, which is connected to the outer water
space next to large cylinder; by this means a free circulation of the water
is effected. Immediately under the centre junction a blow-off pipe with
cock is connected, consequently an effective and thorough cleaning of
the water spaces is obtained.
The centre egg ended cylinder is connected to the intermedial
cylinder by means of tubes placed at suitable distances apart and at an
incline sufficient to allow free circulation of the water to pass upwards;
the tubes are placed zig-zag, thus 。°.
。°, one tier above the other, and
continued to the top of the intermediate and centre cylinders.
The chimney is connected to the intermediate cylinder and passes
upwards through the outer cylinder; the heat from the furnace passes.
upwards and around the tubes, impinging on the surface of each tube, as
also on the surface of the boiler plates in which the tubes are inserted,
thus rapidly generating steam; and the heat passing upwards through
a steam dome superheats the steam. The furnace bars may be stationary
or rotary.
0 0
A second boiler is constructed of one large cylinder, in which the tubes
and furnace are fixed. By means of this improvement one tier of
parallel tubes is fixed immediately above the furnace in a zig-zag
position, thus 。, and slightly inclined for the better circulation of the
water. I recommend my transverse joggle grate bar furnace for this
boiler, with smoke consuming self-acting door. The travelling machine
furnace can also be applied with great advantage. In this boiler super-
heating tubes are fixed in the steam dome.
My improved transverse joggle grate bar furnace is constructed of two
side bearers placed longitudinally at the sides of the furnace for carrying
the bars. The improvement in this furnace is that for each bar a semi-
circular seat is formed, properly spaced for each bar to drop into. The
under part of the bar at both ends is circular, and there is a rack which

page_text: passes up the centre close under the bars, occasionally worked by a hand
lever applied to a bell crank. Motion is given to joggle the bars by
this means.
All the burned refuse is removed into the ash-pit; the
space between the bars is kept cleared, which is so necessary for the free
admission of air through the burning fuel, and considerable saving of
fuel is obtained, as also more steam generated.
Another most important object is gained by the duration of the bars
against the action of the heat. The bridge is constructed to carry one
end of the side bearers and rack; the dead plate has brackets to support
the other end of side bearers and rack, also the pedestal to carry a
bell crank. This dead plate is firmly bolted to the front of furnace,
which is fixed to the boiler. This simple arrangement carries all parts
of the furnace without a bolt being required in the flue or furnace.
Attached to the bridge is an air chamber, which is protected by a bridge
plate; this plate forms part of top of the bridge for carrying the brick-
work. Air is admitted into this chamber by means of a valve and rod.
The bars I recommend should be chilled bars for durability against the
heat.
In furnaces for the manufacture of iron and other purposes similarly
constructed to the front castings at end of furnace' a long plate of iron
is fixed in slides, in which it is moved by means of a hand lever operated
on by the stoker. When air is required to cause more perfect combustion
in the furnace, in order to supply the air in a heated state a chamber is
provided between the plate and the brick that forms the end of the
furnace. The air is admitted into the lower part of the chamber and
passes upwards between the red-hot brick which is introduced through
the chamber; these bricks are placed at suitable distances apart to cause
the air in its onward course to be considerably heated before coming into
contact with the gases. By this means more perfect combustion is
obtained, and all the heating properties of the fuel developed to the
highest point, consequently increased heat and more equal distribution
over the surface of the furnace. By this means a considerable saving in
fuel and labor, increased quantity of work and of improved quality in the
manufacture of the iron in all its stages, together with the total con-
sumption of smoke, are the results.
In my endless chain grate bar self-feeding mechanical furnace the

page_text: together at back with a casting suitable to the flue in which it is fixed.
At front end they are formed by means of a cross plate firmly bolted
to the ends, which is supported by two upright pillars. On the side
frames in front of boiler are fixed two plates, one on each frame, of
sufficient height to contain the small coal for feeding the furnace. These
plates are flanged at boiler and bolted to it. The driving shaft is fixed in
steps slightly tapered and chilled; the driving teeth are steel and formed
to the circular shape of the end of of the chain bar; the pins for connect-
ing the chain grate bar are also made of steel, slightly tapered. On the
end of the driving shaft is placed a worm wheel, which gives motion to the
furnace by means of any convenient motive power, which is communi-
cated by means of a belt; a most efficient means is supplied for regulating
the proper strain of the chain grate. To the steps that support the driv-
ing shaft are fixed screws, which pass through the end plates of back end
of frames; a roller is also fixed in conical chilled bearings, and directly
over this roller across the grate is fixed a water bridge at a suitable
distance to allow the burned refuse to drop into the ash-pit; by this con-
struction the bars free themselves from all the burned refuse when
passing round the roller at back and also at front driving shaft; by this
operation the grate is perfectly freed from all burned refuse and clinker
as it passes in carrying its fresh supply of fuel, the air space between the
bars being clear.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Simon Regan in the Great Seal Patent Office on
the 7th June 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SIMON
REGAN, of Bow, in the County of Middlesex, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of December, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Simon Regan, Her special
licence that I, the said Simon Regan, my executors, administrators,
and assigns, or such others as I, the said Simon Regan, my executors,

page_text: 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
LAND AND MARINE BOILERS AND THEIR FURNACES, AND ALSO IN FURNACES USED
FOR THE MANUFACTURE OF IRON, AND OTHER PURPOSES," upon the condition
(amongst others) that I, the said Simon Regan, my executors or admini-
strators, by an instrument in writing under my, 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 per.
formed, 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 Simon Regan, 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:-
The first part of my said Invention has reference to an improved
arrangement for steam boilers both for marine and land purposes. The
first form is constructed of three cylinders standing vertically, the one
being placed within the other at suitable distance apart and constituting
the water spaces, same being constructed sufficiently large to enable a
man to fix the tubes which pass into the centre cylinder, both ends of
which are egg ended, the top having a man-hole, the lower end next
the furnace being connected to a wrought-iron conical down pipe which
passes down the centre of the furnace grate; by means of a circular
flange attached to this pipe suitably constructed the furnace is supported
at centre, either as fixed or for rotary motion. Attached to the end of the
conical down pipe is a four-way branch which is connected to the outer
water space next to the large cylinder; by this means a freer circulation
of the water is effected. Immediately under the centre junction a blow-
off pipe with cock is connected, consequently an effectual and thorough
cleaning of the water spaces is obtained.
The centre egg ended cylinder is connected to the intermediate
cylinder by means of tubes placed at suitable distances apart, and at an
incline sufficient to allow free circulation of the water to pass upwards,

page_text: the tubes are placed zig-zag thus 6% one tier above the other, and
continued to the top of the intermediate and centre cylinders.
The chimney is connected to the intermediate cylinder and passes.
upwards through the outer cylinder; the heat from the furnace passes
upwards and around the tubes, impinging upon the surface of each tube
as also on the surface of the boiler plates in which the tubes are inserted,
thus rapidly generating steam; and the heat passing upwards through
steam dome superheats the steam. The furnace bars may be stationary
or rotary.
A second boiler is constructed of one large cylinder in which the tubes
and furnace are fixed. By means of this arrangement one tier of
parallel tubes is fixed immediately above the furnace in a zig-zag
position thus 。° and slightly inclined for the better circulation of
the water. In this boiler superheating tubes are fixed in the steam
dome.
My improved transverse joggle grate bar furnace is constructed of
two side bearers placed longitudinally at the sides of the furnace for
carrying the bars. The improvement in this furnace is that for each
bar a semicircular seat is formed properly spaced for each bar to drop
into. The under part of the bar at both ends is circular and there is a
rack which passes up the centre close under the bars occasionally worked
by a hand lever applied to the bell crank. Motion is given to joggle the
bars by this means. All the burned refuse is removed into the ash-pit;
the space between the bars is kept cleared, which is so necessary for the
free admission of air through the burning fuel; and considerable saving
of fuel is obtained, as also more steam generated.
Another most important object is gained by the duration of the bars
under the action of the heat. The bridge is constructed to carry one
end of the side bearers and rack; the dead plate has brackets to support
the other end of the side bearers and rack, also the pedestal to carry the
bell crank. This dead plate is firmly bolted to the front of. furnace,
which is fixed to the boiler. This simple arrangement carries all parts
of the furnace without a bolt being required in the flue or furnace.
Attached to the bridge is an air chamber which is protected by a bridge
plate; this plate forms part of top of the bridge for carrying the
brickwork. Air is admitted into this chamber by means of a valve and

page_text: rod. The bars I recommend should be chilled bars for durability against
the heat.
-In furnaces for the manufacture of iron and other purposes similarly
constructed to the front castings at end of furnace a long plate of
iron is fixed in slides in which it is moved by means of a hand lever
operated on by the stoker. When air is required to cause more perfect
combustion in the furnace, in order to supply air in a heated state, a
chamber is provided between the plate and the brickwork that forms the
end of the furnace. The air is admitted into the lower part of the
chamber and passes upwards between the red-hot brickwork which is
introduced through the chamber; these bricks are placed at suitable
distances apart to cause the air in its onward course to be considerably
heated before coming into contact with the gases. By this means more
perfect combustion is obtained, and all the heating properties of the fuel
developed to the highest point, consequently increased heat and more
equal distribution over the surface of the furnace are obtained. By this
Invention a considerable saving of fuel and labor, increased quantity of
work and of improved quality in the manufacture of the iron in all its
stages, together with the total consumption of smoke, are the results.
In my endless chain grate bar self-feeding mechanical furnace the
framework is constructed of two longitudinal side frames coupled
together at back with a casting suitable to the flue in which it is fixed.
At front end they are formed by means of a cross plate firmly bolted to
the ends, which is supported by two upright pillars. On the side frames
in front of boiler are fixed two plates, one on each frame, of sufficient
height to contain the small coal for feeding the furnace. These plates
are flanged at boiler and bolted to it. The driving shaft is fixed in steps
slightly tapered and chilled, the driving teeth are steel and formed to
the circular shape of the end of the chain bar. The pins for connecting
the chain grate bar are also made of steel slightly tapered. On the end
of the driving shaft is placed a worm wheel which gives motion to the
furnace by means of any convenient motive power which is communi-
cated by means of a belt; a most efficient means is provided for regu-
lating the proper strain of the chain grate. To the steps that support
the driving shaft are fixed screws which pass through the end plates of
back end of frames, a roller is also fixed in conical chilled bearings, and
directly over this roller across the grate is fixed a water bridge at suitable
distance to allow the burned refuse to drop into the ash-pit; by this

page_text: construction the bars free themselves from all the burned refuse when
passing round the roller at back and also at front driving shaft; by
this operation the grate is perfectly freed from all burned refuse and
clinker as it passes in carrying its fresh supply of fuel, the air space
between the bars being clear.

page_text: Figure 27, front elevation of furnace for manufacture of iron.
The same letters of reference in these Figures indicate the same parts
wherever shewn.
a, b, c, (Figures 1 and 2) represent the three cylinders forming the
boiler, as described in the first part of this Specification; d is the
conical down pipe passing through centre of furnace, the flange d³
attached to pipe & supporting the furnace; e is four-way branch con-
nected to the outer water space, as shewn; f, blow-off pipe; 9, (Figures 1,
2, 4, 5, and 6) tubes fitted to boilers to allow of free circulation of the
water in same, as before described; h, chimney to boiler; g' (Figs. 4
and 5) are superheating tubes also used for strengthening the boiler;
i (Figure 1) steam dome for superheating the steam; k, frame of revolv-
ing grate fitted to boiler, shewn in Figure 1, into which the bars j are
fitted; (Figures 4, 5, and 6) represent large cylinder of boiler; this
boiler is fitted with the joggle grate bar furnace; m represents ends of
grate bars q which drop into the semicircular openings (see Figure 9),
formed in the bearers m², which bearers are placed longitudinally at the
sides of the furnace; n, rack which passes up the centre of the furnace
underneath the bars q; o, bell crank to which lever p is applied for impart-
ing a joggle motion to the bars q; r, brackets formed on dead plate d³
for supporting the side bearers m²; s, pedestal, also attached to deal
plate, said pedestal carrying the bell crank. a¹, Fig. 27, front castings;
b, long plate at end of furnace fixed in slides c³, such plate being moved
by hand lever d¹³; e is space which allows the air to pass into the furnace
Figures 13 to 26 represent in various forms and also their application
my improved grate bar self-feeding mechanical furnace. f¹, longi-
tudinal side frames coupled together at back of furnace by casting g',
and at front by cross plate h¹; i¹³, plates fixed on frames f¹ forming a
receptacle for holding a small supply of fuel for feeding the furnace;
represents driving shaft, on one end of which is fitted worm wheel o'

page_text: for imparting motion to the grate. On shaft k¹ is fitted the driving
teeth ; m², chain bars connected together by the pins n¹; p¹ is screw
for regulating strain on the chain grate; q₁ is roller.fitted at opposite
end of grate to the driving shaft k³, round which roller the grate turns;
q³, gudgeons of the roller q¹; T¹ is water bridge fitted over roller q', as
shewn.
Having now particularly described and ascertained the nature and
object of my said Invention, and in what manner the same is to be per-
formed and carried out in practice, I hereby declare that I claim the
Invention of "Improvements in Land and Marine Boilers and their
Furnaces, and also in Furnaces used for the Manufacture of Iron and
other Purposes," as arranged and combined in manner herein-before
described and illustrated by the accompanying Drawings, it being under-
stood that I do not limit myself to nor do I claim the precise details
shewn by the Drawings and described with reference thereto, except as
constituents of my said Invention.
In witness whereof, I, the said Simon Regan, have hereunto set
my hand and seal, this Seventh day of June, in the year of our
Lord One thousand eight hundred and seventy-five.
SIMON REGAN. (L.B.)
Witness,
T. MORGAN,
Secretary,
Inventors' Patent Right Association, Limited
21, Cockspur Street,
Charing Cross, S.W.