IMPROVED ARRANGEMENTS AND APPARATUS FOR HEATING THE FEED WATER OF THE BOILERS OF Loco- MOTIVE ENGINES
Year: 1874

page_text: "
LETTERS PATENT to Joseph Whitehead Broadbent, of Oldham, in the
County of Lancaster, for the Invention of "IMPROVED ARRANGEMENTS
AND APPARATUS FOR HEATING THE FEED WATER OF THE BOILERS OF Loco-
MOTIVE ENGINES."
Scaled the 30th October 1874, and dated the 1st May 1874.
PROVISIONAL SPECIFICATION left by the said Joseph Whitehead
Broadbent at the Office of the Commissioners of Patents, with his
Petition, on the 1st May 1874.
I, JOSEPH WHITEHEAD BROADBENT, of Oldham, in the County of.
Lancaster, do hereby declare the nature of the said Invention for.
"IMPROVED ARRANGEMENTS AND APPARATUS FOR HEATING THE FEED WATER OF
THE BOILERS OF LOCOMOTIVE ENGINES," (to be as follows) :-
I fix to the exhaust pipe of each steam cylinder a box or chamber-
communicating by a number of arched or curved tubes with a similar
box or chamber connected to the exhaust pipe in the chimney, and over-
both sets of tubes I fix arched water-tight chambers, which pass over or

page_text: saddle the boiler, and communicate with each other and also with the
boiler and feed water supply.
The feed water is fed by an injector, pumps, or by any other means
into the chambers enclosing the tubes, and the exhaust steam in its
passage from the cylinder to the exhaust pipe in the chimney passes
through the tubes and heats the feed water to a high degree of tempera-
ture before it enters the boiler, thereby enabling a great economy of fuel
to be effected.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Whitehead Broadbent in the Great Seal
Patent Office on the 31st October 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
WHITEHEAD BROADBENT, of Oldham, in the County of Lancaster,. send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of May, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Joseph Whitehead Broadbent, Her special
license that I, the said Joseph Whitehead Broadbent, my executors,
administrators, and assigns, or such others as I, the said Joseph
Whitehead Broadbent, 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
Invention for "IMPROVED ARRANGEMENTS AND APPARATUS FOR HEATING THE FEED
WATER OF THE BOILERS OF LOCOMOTIVE ENGINES," upon the condition (amongst
others) that I, the said Joseph Whitehead Broadbent, 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,

page_text: YU YY ANOW
that, the said Joseph w mitehead Broadbent, do
hereby declare the nature of my said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the Figures
on the accompanying Sheet of Drawings, and to the letters of referenco
marked thereon (that is to say) :-
I fix the exhaust pipe of each steam cylinder to a flanged box or
branch pipe communicating by a number of arched or curved tubes at
each side with another flanged box or branch pipe having at the top an
opening forming the exhaust pipe in the chimney, and over both sets of
tubes I fix arched or curved water-tight chambers communicating with
each other and also with the boiler and feed water supply, the said
chambers being placed in the smoke box or saddling the boiler.
The feed water is forced by pumps, by injector, or by any other means
into the arched chambers enclosing the tubes, and the exhaust steam
in its passage from the cylinders to the exhaust pipe in the chimney
passes through the tubes and heats the feed water to a high degree of
temperature before it enters the boiler, thereby enabling a great economy
of fuel to be effected.
On the accompanying Sheet of Drawings Fig. 1 is an end view with
part in section drawn to a reduced scale of one arrangement of my
improvements for enabling the feed water of locomotive engines to be
heated in a most efficient and economical manner; Fig. 2, a sectional.
plan of Fig. 1 at the line A, B; and Fig. 3, a transverse section drawn
about full size of the water chamber enclosing the tubes.
In Figs. 1 and 2 a represents the smoke box of a locomotive engine;
b, part of the chimney; c, the flanged box or branch pipe communicating
with the exhaust pipes of the steam cylinders; and d, the arched water
chambers which communicate with each other by the pipe e. The
arched chambers are fixed at the bottom to the flanged box or branch
pipe c, and at the top to the flanged box or branch pipe f, having at the
top the exhaust pipe g. In the interiors of the water chambers & there
are tubes fixed steam and water-tight by ferrules, or other well known
means into plates or discs i at the ends of the chambers, the said plates
or discs being bolted to the flanges of the branch pipes c, f, and it is
through the tubes h that the exhaust steam passes from the exhaust
pipes of the cylinders to the exhaust pipe g in the chimney. The feed

page_text: water passes from the pump or injector through the pipe to the arched
chambers, from whence it passes through the pipe m to the boiler, there
being valves or clacks n, o, for preventing back pressure, and it will be
readily understood the heat of the exhaust steam passing through the
tubes will heat the water circulating round them, and thereby heat the
feed water, and effect economy of fuel. This arrangement may be
modified by fixing the arched water chambers to the inside of the smoke
box, and having their lower ends in direct communication with the
exhaust pipes from the cylinders, or the arched pipes may be made to
saddle the boiler.
Having now described the nature and particulars of my said Invention
I desire it to be understood that I claim, the improved arrangements and
apparatus for heating the feed water of locomotive engines as herein
described and illustrated on the accompanying Sheet of Drawings or any
mere modification thereof.
:
In witness whereof, I, the said Joseph Whitehead Broadbent, have
hereunto set my hand and seal, this Twenty-ninth day of October,
in the year of our Lord One thousand eight hundred and seventy-
four
JOSEPH W. BROADBENT. (L.S.)
Signed, sealed, and delivered by the
within-named Joseph Whitehead
Broadbent in the presence of
G. SEPTIMUS HUGHES,
Patent Agent,
Manchester.