IMPROVEMENTS IN APPARATUS FOR HEATING WATER, STEAM, OR OTHER FLUID
Year: 1872

page_text: .LETTERS PATENT to John Caparn Calvert and John Taylor, of
Huddersfield, in the County of York, Engineers and Millwrights,
for the Invention of "IMPROVEMENTS IN APPARATUS FOR HEATING WATER,
STEAM, OR OTHER FLUID."
PROVISIONAL SPECIFICATION left by the said John Caparn Calvert
and John Taylor at the Office of the Commissioners of Patents,
with their Petition, on the 3rd February 1872.
We, JOHN CAPARN CALVERT and JOHN TAYLOR, of Huddersfield, in
3 the County of York, Engineers and Millwrights, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN APPARATUS FOR HEATING
WATER, STEAM, OR OTHER FLUID," to be as follows:-
This Invention relates to apparatus to be placed within the flue leading
from a boiler or other furnace, and consists of a series of pipes depending
from boxes or chambers in pairs, that is, two pipes connected to one box
or chamber; and such two pipes are coupled or.connected at the bottom

page_text: ends with other two pipes respectively, so that a continuous passage is
formed through the whole series for water, steam, or other fluid to be
passed through. The bottom end of each coupled pair of pipes is pro-
vided with a lid or cover so as to be readily removed for the purpose of
cleansing the interior thereof. Also a series of scrapers are applied to fit
to the external surface of the said pipes, and pressed thereon by weighted
levers, which are caused to travel up and down the said pipe by
mechanical means, to cleanse the exterior surface of soot which would
otherwise accumulate thereon and prevent the action of heat.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Caparn Calvert and John Taylor in the Great
Seal Patent Office on the 3rd August 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
CAPARN CALVERT and JOHN TAYLOR, of Huddersfield, in- the County of
York, Engineers and Millwrights, send greeting.
WHEREAS Her, most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of February, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said John Caparn Calvert and John Taylor,
Her special licence that we, the said John Caparn Calvert and John
Taylor, our executors, administrators, and assigns, or such others as we,
the said John Caparn Calvert and John Taylor, our executors, adminis-
trators, 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 APPARATUS FOR
HEATING WATER, STEAM, OR OTHER FLUID," upon the condition (amongst
others) that we, the said John Caparn Calvert and John Taylor, our
executors or administrators, by an instrument in writing under our, or
their, or one of their 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
56

page_text: Great Seal Patent Office within six calendar months next and imme-.
diately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said John Caparn Calvert and John
Taylor, 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 Sheet
of Drawings (that is to say):
.This Invention relates to apparatus to be placed within the flue leading
from a boiler or other furnace, and consists of a series of pipes depending
from boxes or chambers in pairs, that is, two pipes connected to one box
or chamber; and such two pipes are coupled or connected at the bottom
ends with other two pipes respectively, so that a continuous passage is
formed through the whole series for water, steam, or other fluid to be
passed through. The bottom end of each coupled pair of pipes is pro-
vided with a lid or cover so as to be readily removed for the purpose of
cleaning the interior. Also a series of scrapers are applied to fit to the
external surface of the said pipes, and pressed thereon by balance levers,
which are caused to travel up and down the said pipes by mechanical
means, to cleanse the exterior surface of soot which would otherwise
accumulate thereon and prevent the action of heat.
Such being the nature of the said Invention, the construction, arrange-
ment, and manner in which the same is to be performed or put into
practical operation will be readily understood by reference to the annexed
Sheet of Drawings, where Fig. 1 is a side elevation, Fig. 2 an end
elevation, and Fig. 3 a plan of the same partly in section.
A are the pipes, which are constructed in pairs A and A³, or double
pipes connected at their bottom ends to each other, and at their tops to
and depending from the boxes or chambers B, the part A being connected
to one box or chamber B, while the part A¹ is connected to another
box B¹; also one part of another pipe A³ is connected to the said box B',
while the other part of the said pipe A³ is connected to the box B² and
so on, as shewn by the dotted lines, letters, and figures on the Drawing,
thus forming a continuous passage for water, steam, or other fluid to
circulate or pass through, entering at the pipe C, and passing out at the
pipe D. The bottom part of each pair of pipes is provided with a lid or
cover E, which also forms a vessel or receptacle for sediment, and there
are also covers E' to the tops of the said pipes, all which can be removed
f
1

page_text: .
for cleansing the interior of the pipes. Each pipe is also provided with a
pair of scrapers F and F¹ for cleansing the exterior surfaces of the pipes.
These scrapers are hinged to moveable frames Ġ and H, and pressed
against the surface of the pipes by balance levers I, the frames being
connected by chains J passing over pulleys K to which motion may be
given by any ordinary or suitable means to produce reciprocatory motion
of the said frames up and down, thus causing the scrapers to cleanse
the external surface of the pipes or prevent the soot from accumulating
thereon. The scrapers and part of a pipe and frame are shewn half full
size at Fig. 4.
It will be seen in the Drawings that there are shewn four sets or series
of pipes and boxes which are connected by pipes M, thereby forming one
continuous current of the water or other fluid throughout the four sets or
series, and it will be observed that any other number of sets may be
employed in like manner.
1.
Having thus described the nature of our said Invention, and shewn by
Drawings, figures, and letters of reference in what manner the same is
to be performed or carried into practical operation, we would have it
understood that we do not confine ourselves to the precise details, but
what we claim is, the construction, combination, and arrangement of
apparatus for purposes herein-before set forth, in manner substantially as
herein described and shewn in the Drawings.
In witness whereof, I, the said John Caparn Calvert, for and on
behalf of myself and the said John Taylor, have hereunto set my
hand and seal, this First day of August, in the year of our
Lord One thousand eight hundred and seventy-two..
Witness,
WM. TASKER,
Patent Agent,
Halifax & Bradford.
J. C. CALVERT. (L.S.)