IMPROVEMENTS IN BOILERS
Year: 1852

page_text: LETTERS PATENT to Josiah Glasson, of the Soho Foundry, near
Birmingham, in the County of Warwick, Boiler Maker, for the
Invention of "IMPROVEMENTS IN BOILERS."
Sealed the 29th January 1853, and dated the 13th December 1852.
PROVISIONAL SPECIFICATION left by the said Josiah Glasson
at the Office of the Commissioners of Patents, with his Petition, .
on the 13th December 1852.
I, JOSIAH GLASSON, of the Soho Foundry, near Birmingham, in
the County of Warwick, Boiler Maker, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN BOILERS" to be as
follows:-
My Invention applies to tubular boilers, and instead of making
the tubes round or flat sided, I make use of drawn tubes of an
elliptical or oblong shape. I construct and fit the tube box in such
manner as to be enabled to remove and readily replace it, together
with all the tubes it carries, from each separate fire place, as may
be required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters
Patent, filed by the said Josiah Glasson in the Great Seal
Patent Office on the 13th June 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JOSIAH GLASSON, of the Soho Foundry, near Birmingham, in the
County of Warwick, Boiler Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of December,
in the year of our Lord One thousand eight hundred and fifty-two,
in the sixteenth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Josiah Glasson, Her
special licence that I, the said Josiah Glasson, my executors, admi-
nistrators, and assigns, or such others as I, the said Josiah Glasson,
my 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 BOILERS," upon the condition
(amongst others) that I, the said Josiah Glasson, by an instrument
in writing under my hand and seal, 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 Josiah Glasson, do .hereby
declare the nature of my said Invention, and in what manner the
same is to be perforined, to be particularly described and ascertained
in..and.. by the following statement, reference being had to the
Drawings annexed (that is to say):
My Invention has relation to tubular boilers, and instead of
making the tubes round or flat sided, as usual, I construct my
boilers, with drawn tubes of an elliptical or oblong shape, and I
construct and fit the tube boxes in which the tubes are fixed in-

page_text: such manner as to be enabled to remove and readily replace the
tube box, together with all the tubes it carries, from each fire place
separately when required. My elliptical or oblong tubes may be
placed either vertically or horizontally, and may be used either for
the fire to pass through them, or for the water to pass through
them; and the fire to circulate around their exterior surfaces.,
Figure 1, of the Drawings annexed, is a longitudinal vertical
section, and Figure 2, a transverse vertical section; of a marine
boiler, having the tubes constructed and arranged in the tube boxes
according to my Invention. A, A, is the shell of the boiler; B, B,
the fire places; C, C, the tubes, which are shewn of an elliptical
form; there is a separate tube box to each fire place, and the tubes
are fitted in a slightly inclined position, in preference to their being
perfectly horizontal; E, is the uptake, communicating with the
three tube boxes, and conducting the products of combustion which
pass-through the tubes to the chimney... Instead of being used as
flues, the elliptical or oblong tubes may be used as water spaces
when placed horizontally, and they may also be used as water spaces
or flues when placed vertically.
Figure 3, is a longitudinal vertical section, and Figure 4, a
horizontal section, of another marine boiler, in which elliptical
tubes are employed, placed vertically, and used for water spaces,
the flame from the fire places passing round their exterior sur-
faces; A, A, is the shell of the boiler; B, B, the fire places;
C, C, the tubes which are fitted vertically in the tube boxes
D, D. The tube boxes have conical joints d, d, at the inner
end, and flanges d', d, at the front, by means of which they are
secured in place in the boiler; but other modes of fastening which
will admit of the tube boxes being readily removed and replaced,
may be employed. E, is the uptake.
Figures 5, 6, and 7, are sections of different forms of tubes which
I employ, and either of these forms may be used in a vertical or
horizontal position, and as flues or water spaces. The object gained
by their employment is increased heating surface, while their pecu-
liar form gives greater strength to the tube plates. The tubes

page_text: may be fitted either by means of ferules or by expanding their
ends, or by other means usually employed for such purpose.
And having now described the nature of my said Invention, and
in what manner the same is to be performed, I declare that what I
claim is, ―
The construction of boilers with tubes of the particular shapes
represented in the Drawings hereunto annexed, fitted into separate
boxes for each fire place, as herein-before described.
In witness whereof, I, the said Josiah Glasson, have hereunto
•
set my hand and seal, this Eleventh day of June, One
thousand eight hundred and fifty-three.
JOSIAH GLASSON. (L.S.)