IMPROVEMENTS IN TUBULAR STEAM BOILERS OR GENERATORS
Year: 1854

page_text: LETTERS PATENT to William Warne, of Lower Blowing House, St. Austell,
Cornwall, for the Invention of "IMPROVEMENTS IN TUBULAR STEAM BOILERS
OR GENERATORS."
Sealed the 29th August 1854, and dated the 8th March 1854.
PROVISIONAL SPECIFICATION left by the said William Warne at the
Office of the Commissioners of Patents, with his Petition, on the 8th
March 1854.
I, WILLIAM WARNE, of Lower Blowing House, St. Austell, Cornwall, do
hereby declare the nature of the Invention for "IMPROVEMENTS IN TUBULAR
STEAM BOILERS OR GENERATORS" to be as follows:-
This Invention consists of a peculiar construction of tubular boilers or
generators, in order to get greater strength and to offer increased heating
surface with reduction of dimensions. For this purpose numerous tubes are
employed in rows over the furnace or fire-place; the lower ends of such tubes
are connected to horizontal tubes or pipes, and with other horizontal tubes at
top. The supply of water is pumped into one of the lower horizontal pipes or
tubes, and they being all connected, the water will stand at the same level in all
the rising tubes or pipes. The upper horizontal tubes or pipes constitute the
steam spaces, and they also are connected together. In the upper horizontal
pipes or tubes openings are made opposite the rising tubes or pipes in order to

page_text: admit an instrument to clean them, and the ends of the horizontal tubes or
pipes may be opened to admit of cleansing the interiors of such pipes or
tubes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Warne in the Great Seal Patent Office on the 8th
September 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
WARNE, of Lower Blowing House, St. Austell, Cornwall, send greeting.
year of
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of March, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said William Warne, Her special licence that I, the said William
Warne, my executors, administrators, and assigns, or such others as I, the
said William Warne, 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
TUBULAR STEAM BOILERS OR GENERATORS," upon the conditions (amongst others)
that I, the said William Warne, 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 William Warne, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement
thereof (that is to say):
This Invention consists of a peculiar construction of tubular boilers or
generators, in order to get greater strength and to offer encreased heating
surface with reduction of dimensions. For this purpose numerous tubes are
employed in rows over the furnace or fire-place; the lower ends of such tubes
are connected to horizontal tubes or pipes, and with other horizontal tubes at
top. The supply of water is pumped into one of the lower horizontal pipes or
tubes, and they being all connected, the water will stand at the same level

page_text: in all the rising tubes or pipes; the upper horizontal tubes or pipes constitute
the steam spaces, and they also are connected together. In the upper
horizontal pipes or tubes openings are made opposite the rising tubes or pipes
in order to admit an instrument to clean them, and the ends of the horizontal
tubes or pipes may be opened to admit of cleansing the interiors of such pipes
or tubes.
Having thus stated the nature of my Invention, I will now proceed to describe
the accompanying Drawing, in all the Figures of which the same letters denote
like parts wherever they occur.
Figu
g
IOI1,
Figure 3, a longitudinal section; Figure 4, a horizontal section; and Figure 5,
a plan of a boiler constructed in accordance with my Invention. a, a, are
numerous tubes or pipes in rows over the furnace or fire-place; b, b, are
horizontal tubes or pipes to which the lower ends of the pipes or tubes a, a, are
connected; c, c, are other horizontal pipes or tubes attached to the top of the
pipes or tubes a, a. The water supply is pumped into the pipe or tube b¹, and
passes thence into the tubes b, b, and they being all connected, the water will
stand at the steam level in all of the pipes or tubes a, a. The pipes or tubes c, c,
constitute the same spaces, and they also are connected together. In the upper
horizontal tubes c, c, openings with screw plugs d, d, are formed opposite to
each of the rising tubes or pipes a, a, in order to admit of an instrument being
inserted to cleanse them when requisite; and the ends of the horizontal tubes
or pipes b, b, are also provided with suitable openings for the reception of
cleansing instruments, each of such openings being provided with stuffing boxes,
so that the cleansing instruments may remain therein during the working of the
boiler. e is the steam pipe leading from the generator to a steam chest, and
thence to the steam engine. In some cases it may be found desirable to
construct the outside rows of the tubes a, a, in such manner that their lower
ends shall form sides to the furnace, and it would be effected by encreasing the
length of the outside rows of the pipes a, a, to the extent of the depth of the
furnace, and their ends being connected together by a horizontal pipe or tube b,
in a similar manner to that in which the shorter or inner rows of the pipes or
tubes a, a, are connected. It will readily be observed on examining the
different Figures in the Drawing that any fouling or choking matters that may
collect within the pipes or tubes a, a, may be cleared therefrom by cleansing
instruments introduced through the openings at d, d; such matters will then fall

page_text: into the horizontal tubes b, b, from which they may readily be removed by the
scrapers within those tubes.
Having now described my Invention, and also the best means I am
acquainted with for carrying the same into practice, I wish it to be understood
that I do not intend to confine myself to the details, so long as the peculiar
nature of my Invention be retained; but what I claim is, the peculiar construc-
tion of tubular boilers or generators, and also the facilities for cleansing them,
as herein explained.
In witness whereof, I, the said William Warne, have hereunto set my
hand and seal, this Seventh day of September, in the year of our Lord
One thousand eight hundred and fifty-four.
Witness,
FRED* HARRIS.
WILLIAM WARNE. (L.S.)