IMPROVE- MENTS IN STEAM BOILERS."
Year: 1873

page_text: LETTERS PATENT to Daniel Adamson, of the Enginearing Works,
Hydo Junction, near Manchester, for the Invention of "IMPROVE-
MENTS IN STEAM BOILERS."
PROVISIONAL SPECIFICATION left by the said Daniel Adamson at the
Office of the Commissioners of Patents, with his Petition, on the
12th March 1878.
'
I, DANIEL ADAMSON, of the Engineering Works, Hyde Junction, near
Manchester, do hereby declare the nature of tho said Invention for
“IMPROVEMENTS IN STEAM BOILERS," to be as follows:—
My Invention consists in certain improved arrangements of parts
composing steam boilers, and in the mode of connecting together parts
of steam boilers, whereby great strength and economy of construction
aro secured. .
My improved steam boiler consists of a central cylindrical com-
partment, and of two or more side cylindrical compartments, placed on
a lower level and having tho firo-grate between them, so that the hoat is

page_text: appliod direct to the side and central compartments, thus forming a
self-contained fire-grate. All the compartments are connected together
by tubes or rings, so that the water and steam may circulate throughout.
The products of combustion from the fire-grate which is placed between
the sido compartments pass on to the end of the boiler, then they return 5
back by sido flues in the soating, and they are conveyed back again by
side flues under the side compartments, and thence they pass to the
chimney.
My Invention may be modified by making three sets of side com-
partments between which two fire-grates are placed, and one or two 1
upper compartments for the steam to collect in.
I
My improved mode of connecting together the cylindrical parts of
steam boilers is as follows:--At the cylindrical joint of the hoops of
which tho compartments is composed semicircular holes are cut, and a
ring of proper diameter and thickness is placed over the hole loft in-1
the hoops and between the cylindrical parts to be connected; the whole
are then united by rivets. .
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Daniel Adamson in the Great Seal Patent Office
on the 11th September 1878.
.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DANIEL
ADAMSON, of the Engineering Works, Hyde Junction, near Manchester,
sond greeting.
1.
2
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of March, in the year of 2
our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Daniel Adamson, Her special licence that
I, the said Daniel Adamson,' my executors, administrators, and assigns,"
or such others 'as I, the said Daniel Adamson; my executors, adminis- 8
trators, and assigns, should at any time agree with, and no others,"
from time to time and at all times thercafter during the term therein
expressed, should and lawfully might make, use, excrcise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
1

page_text: Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN STEAM
BOILERS," upon the condition (amongst others) that I, the said Danicl
Adamson, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
5 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 Daniel Adamson, do hereby
0 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 (that is to say) :-
My Invention consists in certain improved arrangements of parts
composing steam boilers, and in the mode of connecting together parts
5 of steam boilers, whereby great strength and economy of construction
are secured; the said improved boilers being adapted to work at
pressures of from one hundred to three hundred pounds per square inch.
And in order that my Invention may be fully understood, and readily
carried into operation, I will proceed to describo the accompanying Sheet
of Drawings, referenco being had to the figures and letters marked
thercon.
:
Fig. 1, is an end view; Fig. 2, a side elevation, and Fig. 3, a
transverse section of a steam boiler, constructed according to my
improvements.
This improved steam boiler consists of a central cylindrical compart
ment a, and of two or more side cylindrical compartments b, b, placed
on a lower level and having the fire-grate o between them, so that the
heat is applied direct to the sides and central compartments, thus
forming a self-contained fire-place, without any brickwork, being subject
to the direct action of the fire; all the compartments are connected.
together by the tubes d and rivetted ring joints e, so that the water and .
steam may circulate throughout. The upper central compartment a.
and the two lower side compartments & project beyond the ends of the
two upper side compartments b, and these projecting ends are connected;
by the diagonal taper tubes f,f, the object of which is to increase the
circulation of the water and to facilitate the deposit of sedimentary
matter from the upper to the lower cylindrical vessels. The shortening
b

page_text: of the upper side compartments 6 allows for the return of the flue.
The products of combustion from the fire-grate c, between the sido
compartments b, b, pass on to the end of the middle cylindrical portions
of the boilers, then they return back by the side flues g in the seating,
and afterwards they are conveyed back again by the side flues under t
the side compartments, and thence they pass to the chimney direct, or
through a heat economizing system of flues to the chimney, or the flues
in the seating may be varied in any other convenient manner.
My Invention may be modified, as shewn in Figs. 4, 5, and 6, which
represent an end view, a side elevation, and a plan, of one of my
improved boilers, in which the central compartment a is connected by
the tubes d to three compartments b, b, b, at each side; the side
compartments being united by the rings e; the fire-grate c is placed as
before described between the side compartments b, b, without brickwork.
The upper compartment a and the two lowest compartments 6 project 1
beyond the upper and middle side compartments 6, and the projecting
ends are united by the diagonal taper tubes f.f. The shortening of the
side compartments & allows for the return of the flue. The products of
combustion circulate between and around the various compartments of
the boiler, and through the flues g and h, as before described.
go
My Invention may be further modified by the use of three sets of side
compartments, between which two fire-grates aro placed, and one or two
upper compartments for the steam to collect in.
2
My improved mode of connecting together the cylindrical component
parts of steam boilers is shewn full size in section in Fig. 7. At the 2
oylindrical joint of the hoops of which the compartment is composed
semicircular holes are cut, and the ring e of the proper diameter and
thickness is placed over the hole left in the adjoining two hoops, and
between the cylindrical parts to be connected, the whole are then united
by rivets. The diameter of the rings e must increase in proportion to 3
the diameter of the hoops or cylindrical compartments to which they are
applied; the rings being of such a diameter that the next rivet to the
ring can be easily got at in each circular seam. -
Having thus stated the nature of my Invention, and described the
manner of performing the same, I wish to remark that I do not intend 3
to limit myself to the details given, but that I claim, -
First. The improved steam boilers described, consisting of a central:

page_text: compartment and side compartments, between which is placed the firc-
grate, or of any multiple or modification thereof.
And secondly. The modo described and shown in Fig. 7 for connecting
together the cylindrical parts of steam boilers, so that the rivets of the
circular joints can be replaced by passing through the junction ring
while the cylindrical parts of boilers so constructed can be placed nearly
close together.
In witness whereof, I, the said Daniel Adamson, have hereto set
my hand and seal, this Tenth day of September, One tliousand
eight hundred and seventy-three.
TANAW