IMPROVEMENTS IN APPARATUS FOR CLEANSING THE INTERIOR OF TUBULAR BOILERS AND OTHER HOLLOW ARTICLES.
Year: 1853

page_text: LETTERS PATENT to Frederick Henry Smith, of 264, Borough of
Southwark, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
CLEANSING THE INTERIOR OF TUBULAR BOILERS AND OTHER HOLLOW
ARTICLES.'
Sealed the 5th July 1853, and dated the 19th April 1853.
PROVISIONAL SPECIFICATION left by the said Frederick Henry
Smith at the Office of the Commissioners of Patents, with his
Petition, on the 19th April 1853.
I, FREDERICK HENRY SMITH, of 264, Borough of Southwark, do
hereby declare the nature of the said Invention of "IMPROVEMENTS IN
APPARATUS FOR CLEANSING THE INTERIOR OF TUBULAR BOILERS AND OTHER
HOLLOW ARTICLES" to be as follows:-
This Invention consists of forming a brush on a handle, of a length
depending on the length of the tubes or other hollow article to be
cleaned. The brush used is in two or more parts; each connected at
one end by a spring or springs to the end of the handle. The parts of
the brush are thus caused to separate from each other, and from the

page_text: handle; thus the brush will offer more resistance, as the handle is drawn
to and fro within a tube or other hollow article, than when the brush
is fixed direct to the handle.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Frederick Henry Smith, in the Great Seal
Patent Office, on the 19th October 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
FREDERICK HENRY SMITH, of 264, Borough of Southwark, send
greeting.
-
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of April, in the year
of our Lord One thousand_eight_hundred and. fifty, in the sixteenth
year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Frederick Henry Smith, Her special
licence that I, the said Frederick Henry Smith, my executors, admi-
nistrators, and assigns, or such others as I, the said Frederick Henry
Smith, my executors, administrators, and assigns, should at any time
agree with, and no others, from tinie 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 APPARATUS FOR CLEANSING THE INTERIOR OF TUBULAR
BOILERS AND OTHER HOLLOW ARTICLES," upon the. condition (amongst
others) that 1, the said Frederick Henry Smith, by an instrument in
writing under my hand and seal, should particularly describe and ascer-
tain 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 Frederick Henry Smith, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof (that is to say)

page_text: This Invention consists of forming a brush on a handle; of a length
depending on the length of the tubes or other hollow article to be
cleaned. The brush used is in two or more parts, and connected at one
end by a spring or springs to the end of the handle. The parts of the
brush are thus caused to separate from each other, and from the handle;:
thus the brush will offer more resistance, as the handle is drawn to and
fro within a tube or other hollow article, than when the brush is fixed:
direct to the handle:
Having thus stated the nature of my-said. Invention, I will proceed
to describe the manner of performing the same.
..
F
DESCRIPTION OF THE DRAWING.
T
Figures 1, and 2, show two views of an apparatus constructed and,
arranged according to my Invention. a, is the part or end which is to.
be fixed to a handle, of a length according to the length of tube or
hollow article to be cleansed thereby. b, is a central. plate, having at
its end a knob or guard c. On the central plate 6, is formed an enlarge-
ment 6', which is to be somewhat smaller than the interior diameter of
the tubular flue or other tube to be cleansed by the aid of the appa-
ratus. c, c, are two portions of the head of the brushing apparatus;
but, if desired, the same may be made of more parts, in which case
each part
is
to be similarly mounted on a spring. The two parts c', ';
are each mounted on a spring d, one end of which is fixed to the central
plate, and the other end of each spring d, is free to move; hence the
parts c', c', can be contracted in diameter when introduced into a tube
or tubular flue of a steam boiler. The arrangement of the brushing or
cleansing apparatus may be varied; the whole of the outer surfaces of
the two parts c', c', may be covered, or only partially so, as shewn in
Figures 1, and 2; or such surfaces may be made partly with tufts of
bristles, wire, or other suitable brushing apparatus; or they may
scraping edges combined therewith, as is indicated at Figure 3, where a
somewhat different form of apparatus is shown; the outer ends of the
springs d, d, in this arrangement being formed into scrapers d', d',
which will aid the other parts c', c', when moved to and fro in a tube
or tubular flue, in cleansing the interior thereof. Figure 4, shows the
have

page_text: apparatus arranged or combined in like manner to what is shewn in
Figures 1, and 2; and Figure 5, shows the two parts c', c', separately;
the
parts c', c', as here shown, are provided with projecting blades e, e,
the arrangement and form of which may be varied; and there may be
numerous tufts of bristles, wire, or other matters, as shown in Figures 1,
and 2, but which are not shown in the drawing, in order that the
arrangement of the scraping blades or surfaces may be the better seen.
Having thus described the nature of the Invention, and manner of
performing the same, I would have it understood that I make no claim
to any of the parts separately, nor do I confine myself to the details
herein described, so long as the peculiar character of my Invention be
retained; but what I claim is the combination of apparatus herein
described, for cleansing the interior of tubular boilers and other hollow
articles.
In witness whereof, I, the said Frederick Henry Smith, have
hereunto set my hand and seal, this Nineteenth day of October,
in the year of our Lord One thousand eight hundred and
fifty-three.
FRED HENRY SMITH. (L.S.)
Witness, W. LAUGHTON.