IMPROVE MENTS IN STEAM BOILERS AND IN EVAPORATING PANS
Year: 1867

page_text: LETTERS PATENT to Frederick Burnett Houghton, of Grove House,
West Reading, in the County of Berks, for the Invention of "IMPROVE
MENTS IN STEAM BOILERS AND IN EVAPORATING PANS."
Sealed the 29th November 1867, and dated the 1st June 1867.
PROVISIONAL SPECIFICATION left by the said Frederick Burnett
Houghton at the Office of the Commissioners of Patents, with his
Petition, on the 1st June 1867.
I, FREDERICK BURNETT HOUGHTON, of Grove House, West Reading, in
the County of Berks, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN STEAM BOILERS, AND IN EVAPORATING PANS," to be as
follows:-
This Invention has for its object improvements in steam boilers and in
evaporating pans. The form of the boiler is by preference oval in transverse
section, but this may be varied; it is fitted with a coil of pipes which is kept
full of water, and is sealed so that the water cannot escape from it. A portion
of this coil is within the boiler, and the remainder, which is exterior, is con-
tained in the fire-box and flues, and with it the fire-bars of the furnace are
formed; these portions of the coil and the water within them become strongly
beated, and the circulation of the water carries on the heat to the portions of
the close coil which are within the boiler. This method of heating steam
boilers is not in itself new, but I employ pipes of larger size than beretofore $
these pipes have not up to the present time been larger than of an inch
internal diameter, whereas I prefer to employ tubes of double this area of
section; and also I use the method above set forth in combination with

page_text: another arrangement, by which the rapidity of the circulation within the
boiler is greatly increased, whilst at the same time the heating surface is
enlarged. I employ for this purpose a series of tubes of wrought iron, say,
one and a half inches in diameter, and fitting together with screw sockets;
these pipes draw water from the lower part of the boiler, then pass through
the fire-box and flues so that the water in them becomes highly heated, and
in into the boiler at or about the water level
SPECIFICATION in pursuance of the conditions of the Letters Patent, file.l
by the said Frederick Burnett Houghton in the Great Seal Patent Office
on the 30th November 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, 1, FREDERICK
BURNETT HOUGHTON, of Grove House, West Reading, in the County of
Berks, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of June, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Frederick Burnett Houghton, Her special licence, that I, the said Frederick
Burnett Houghton, my executors, administrators, and assigns, or such others
as I, the said Frederick Burnett Houghton, 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 Inven-
tion for "IMPROVEMENTS IN STEAM BOILERS AND IN EVAPORATING PANS," upon
the condition (amongst others) that I, the said Frederick Burnett Houghton,
my executors or administrators, by an instrument in writing under my, 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 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 Burnett Houghton, 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 has for its object improvements in steam boilers and in

page_text: then again it goes into the pan at c**, and in this way its progress is con-
tinued until sufficient heating surface is obtained both in the pan and in
the furnace, and then the pipe after passing for the last time through the
furnace is carried across and connected up at the point c*; at this point also
the standard pipes c¹, c', are erected upon the circulating pipe c; they are
closed pipes about half filled with water; they serve to keep the pipe c con-
stantly full notwithstanding any expansion and contraction which takes place
in heating and cooling. d, d, are connections at which a force pump may be
applied to fill the coils.
For boilers as already mentioned I employ in combination with heating
pipes as above described another set of pipes, into which the liquid from the
boiler enters and circulates.
Figure 4 is a side view and Figure 5 is an end view of a boiler thus
constructed, except that in these Figures the heating pipes c only are
represented; Figure 6 is a plan, and Figure 7 is a vertical section of the
same boiler, but in these latter views the heating pipes c are omitted, and the
pipes shown are the pipes which I call the vomitting pipes, in which the liquid
from the boiler circulates. The arrangement of the heating pipes is sub-
stantially that which I have already described in respect to the evaporating
pan, and no further description of them is necessary. The vomitting pipes e, e,
are of larger diameter, and each of these pipes issues from the boiler, then
runs along a distance within the furnace flue, where it and its contents
become heated and it returns to the boiler at about the water level thereof.
This arrangement ensures a brisk circulation in these pipes; by preference a
separate furnace is employed for heating the pipes e.
In witness whereof, I, the said Frederick Burnett Houghton, have here-
unto set my hand and seal, this 'T'wenty-ninth day of November, in the
year of our Lord One thousand eight hundred and sixty-seven.
Witness to F. B. Houghton's
signature,
JAMES A. LEE,
Engineer.
F. B. HOUGHTON. (L.S.)