IMPROVEMENTS IN CLEANING THE TUBULAR FLUES OF STEAM BOILERS
Year: 1854

page_text: LETTERS PATENT to Ellis Rowland and James Rowland, of Wakefield
Street, Oxford Street, Manchester, for the Invention of "IMPROVEMENTS
IN CLEANING THE TUBULAR FLUES OF STEAM BOILERS."
Sealed the 30th May 1854, and dated the 17th February 1854.
PROVISIONAL SPECIFICATION left by the said Ellis Rowland and James
Rowland at the Office of the Commissioners of Patents, with their
Petition, on the 17th February 1854.
We, ELLIS ROWLAND and JAMES ROWLAND, of Wakefield Street, Oxford
Street, Manchester, do hereby declare the nature of the Invention for "IMPROVE-
MENTS IN CLEANING THE TUBULAR FLUES OF STEAM BOILERS" to be as follows:-
This Invention consists of so arranging apparatus that steam may be blown
through the tubular flues of steam boilers. For this purpose the apparatus is
constructed of a tube, which can readily be attached to a steam boiler. This
tube is connected to a valve box, the valve of which can be opened at pleasure
by means of a lever or other instrument. The valve box has a flexible tube
fixed to it, which connects the valve box with a hollow plug or bar, which is
formed conical at its end to fit into the tubular flues. When used, the plug is
introduced into a flue, and the steam valve is moved off its seat, when steam
will flow through the apparatus and through the tubular flue, and cleanse the
latter.
f..

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by
the said Ellis Rowland and James Rowland in the Great Seal Patent
Office on the 15th August 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, ELLIS
ROWLAND and JAMES ROWLAND, of Wakefield Street, Oxford Street, Man-
chester, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of February, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth year of Her.
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said Ellis Rowland and James Rowland, Her especial licence that we,
the said Ellis Rowland and James Rowland, our executors, administrators,
and assigns, or such others as we, the said Ellis Rowland and James
Rowland, 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 CLEANING THE TUBULAR FLUES OF STEAM BOILERS," upon the condition
(amongst others) that we, the said Ellis Rowland and James Rowland, by an
instrument in writing under our 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 Ellis Rowland and James Rowland,
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 and accompanying Drawing (that is to say) :—
Our Invention consists in the application, employment, or use of a peculiar
apparatus, so arranged that steam may be blown with velocity through the
tubular flues of steam boilers or steam generators. We employ for this
purpose a tube leading from any convenient part of the boiler (where steam
may be obtained) to a valve acted upon or opened by a lever, and connected
with a hollow plug of any suitable metal or material by a flexible tube. The
hollow plug is tapered at one end, thereby allowing its ready insertion into the
tubes of the boiler. But in order that our Invention may be more readily

page_text: understood and explained in detail we have attached to these presents a Sheet
of Drawing.
Fig. 1 represents a section of part of a locomotive steam engine with our
Invention shewn as attached thereto, and seen in elevation. Fig. 2 is a section
of our Invention, being drawn about half size, or employed for locomotive
engines, and varying according to the increase of the diameter of the tube to
be cleansed. In Fig. 1 a represents a steam pipe leading from the steam
chamber to the valve b; seen distinctly in Fig. 2. It will be evident, on
referring to Fig. 2, that by pressing on the handle of the lever c the valve b
will be removed from its seat, and elevated thereby, allowing the steam from
the boiler to pass through the steam pipe a, rush through the valve band
flexible tube d into the tube e, with tapered nozzle, and by its velocity and
pressure effectually cleanse the tube of the boiler in which it may be intro-
duced. The tapered nozzle may now be withdrawn, and a similar operation
performed upon each of the tubes. In this manner. the whole of the tubes
may be cleansed as required, the entire cleansing occupying but a very short
space of time.
Having thus particularly described our Invention, we wish it to be distinctly
understood that we claim,-
First, the novel application, employment, or use of jets of steam for the
purpose of cleaning the tubular flues of steam boilers.
And, secondly, the peculiar arrangement of the apparatus, as herein par-
ticularly described and set forth, and fully illustrated in the Drawings attached
to these Presents (or any suitable modification or variation thereof), for the
purposes and in the manner herein specified.
In witness whereof, we, the said Ellis Rowland and James Rowland, have
hereunto set our hands and seals, the Twelfth day of August, in the
year of our Lord One thousand eight hundred and fifty-four.