Im- PROVEMENTS IN APPARATUS FOR EFFECTING COMBUSTION OF SMOKE AND HEATING FEED WATER FOR BOILERS
Year: 1875

page_text: LETTERS PATENT to Jonathan Amory, of Cleveland House, Great
Malvern, in the County of Worcester, for the Invention of "Im-
PROVEMENTS IN APPARATUS FOR EFFECTING COMBUSTION OF SMOKE AND
HEATING FEED WATER FOR BOILERS."
Sealed the 10th March 1876, and dated the 20th September 1875.
PROVISIONAL SPECIFICATION left by the said Jonathan Amory at the
Office of the Commissioners of Patents, with his Petition, on the
20th September 1875.
I, JONATHAN AMORY, of Cleveland House, Great Malvern, in the
County of Worcester, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN APPARATUS FOR EFFECTING COMBUSTION OF SMOKE
and Heating Feed WATER FOR BOILERS," to be as follows:---
In the Specifications of Patents granted to H. F. Baker, No. 12,003,
of 1847, and to A. V. Newton, a communication from me, the said
J. Amory, dated the 31st March 1859, No. 812, were described
reverberatory chambers placed in the flues of boilers for the purpose of

page_text: causing a wheel or reverberation of the products of combustion, and
mingling the same with hot air in order to complete their combustion.
.
My Invention relates to improvements in reverberatory chambers of
this kind; these improvements having for their object to preserve the
material of which the chambers are constructed, and to utilise a portion
of the heat imparted to such chambers for the purpose of heating the
feed of the boiler. For this purpose I form such a chamber with a
double casing, the space between the casings being supplied with the
feed water which passes through the said space on its way to the boiler.
I admit hot air to the interior of the chamber by a tube or tubes com-
municating with the outer air and carried through the fire or flues of
the boiler.
In the case of locomotive and such like boilers the said air tubes may
be carried through or take the place of some of the lower tubes of the
boiler.
The form which I prefer to give to the reverberatory chamber is
nearly circular in section, having a slit along its upper side for the
ingress and egress of the products of combustion.
on the 17th March 1870.
TO ALL TO WHOM THESE.PRESENTS SHALL COME, I, JONATHAN
AMORY, of Cleveland House, Great-Malvern, in the County of Worcester,
send greeting.
WHEREAS Her most-Excellent Majesty Queen Victoria, by Her 2
Letters Patent, bearing date the Twentieth day of September, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
_ ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant-unto-me, the said Jonathan Amory, Her special license
that J; the said Jonathan Amory, my executors, administrators, and 3
assigns, or such others as I, the said Jonathan Amory, 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.

page_text: 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 EFFECTING COMBUSTION OF SMOKE AND HEATING FEED WATER
FOR BOILERS," upon the condition (amongst others) that I, the said
Jonathan Amory, 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 Jonathan Amory, 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, reference being had to the accompanying
Sheet of Drawings, and to the figures and letters marked thereon, that is
to say :-
In the Specifications of Patents granted to H. F. Baker, No. 12,003,
of 1847, and to A. V. Newton, a communication from me, the said
J. Amory, dated the 31st March 1859, No. 812, were described
reverberatory chambers placed in the flues of boilers for the purpose of
causing a wheel or reverberation of the products of combustion, and
mingling the same with hot air in order to complete their combustion.
FT
My Invention relates to improvements in reverberatory chambers of,
this kind, these improvements having for their object to preserve the
material of which the chambers are constructed, and to utilise a portion
of the heat imparted to such chambers for the purpose of heating the
feed of the boiler. For this purpose I form such a chamber with a
double casing, the space between the casings being supplied with the
feed water which passes through the said space on its way to the boiler.
I admit hot air to the interior of the chamber by a tube or tubes com-
municating with the outer air and carried through the fire or flues of the.
boiler.

page_text: Fig. 1 represents a longitudinal section of the fire-box and part of the
barrel of a locomotive boiler, and Fig. 2 represents a sectional plan of
the same provided with a combustion curve according to my Invention.
This curve consists of a chamber A nearly cylindrical in shape with a
double casing B and C having between them a cavity filled with water,
which may either be a portion of the boiler water circulating through
the cavity, or may be the feed water passed through the cavity on its
way to supply the boiler. In the former case the ends of the cavity
may be open to the water spaces D, D, at each side of the fire-box; in
the latter case these ends may be closed and the feed water may be
supplied to the cavity by a pipe E, and pass from it after circulating
round it by a pipe F leading into the water space of the boiler.
A diaphragm G is fixed across between the lower part of the curve and
the barrel of the boiler, so that the products of combustion must pass
upwards in front of the curve and over it on their way to the boiler
tubes, taking a wheeling course within the curve itself (as indicated by
the arrows) where they meet with a supply of air admitted by one or
more pipes H to effect the complete consumption of the smoke. This
result is more perfectly attained when warm or heated air is supplied by
the pipes H, and for this reason I prefer to lead these pipes from an
external-opening-at-the-smoke-box-end of the locomotive through one or
more of the boiler tubes, so-that-the-air conveyed to the curve becomes
heated on its way.

page_text: readily applied to the heating of a railway carriage, suspending it from
the under framing between the wheels, and leading the pipe N or
branches therefrom through the floors of the several compartments of
the carriage to supply circulating pipes therein; and in this case instead
of making the stove with a fire-grate O for the combustion of coal or
other fuel, it may be made with a lamp burning petroleum or other
liquid hydrocarbon.
Having thus described the nature of my Invention, and in what
manner the same is to be performed, I claim, constructing combustion
curves for smoke flues with a double shell presenting a cavity through
which water is caused to circulate so as to preserve the material of the
curve by keeping it cool, and to utilise the heat taken from it for heating
the water, substantially as herein described.
In witness whereof, I, the said Jonathan Amory, have hereunto
set my
hand and seal, this Tenth day of March, in the year
of our Lord One thousand eight hundred and seventy-six.
TANT & ITY ATT
FATT