IMPROVED. APPARATUS FOR HEATING THE FEED WATER OF STEAM BOILERS.
Year: 1873

page_text: LETTERS PATENT to Thomas Hydes and John Emil Bennett, both of
Sheffield, in the County of York, for the Invention of "IMPROVED.
APPARATUS FOR HEATING THE FEED WATER OF STEAM BOILERS.'
"
Sealed the 2nd April 1874, and dated the 6th October 1878.
PROVISIONAL SPECIFICATION left by the said Thomas Hydes and
John Emil Bennett at the Office of the Commissioners of Patents,
with their Petition, on the 6th October 1873.
We, THOMAS HYDES and JOHN EMIL BENNETT, both of Sheffield, in
the County of York, do hereby declare the nature of the said Invention
for "IMPROVED APPARATUS FOR HEATING THE FEED WATER OF STEAM BOILERS,"
to be as follows:―
This Invention consists of a new and improved arrangement of
apparatus for supplying steam boilers with water at a high temperature
so as to prevent the sudden lowering of the pressure of the steam in the
said boilers, and consequently to effect economy in the consumption
of fuel.

page_text: The means by which we propose to accomplish the above objects are
as follows:-In a flue over the top or crown of a steam boiler wo
arrange and dispose in any convenient manner a pipe or series of pipes
communicating with the reservoir or feed water supply and the boiler.
The feed water as it passes or circulates through the aforesaid pipe or 5
pipes becomes heated by the waste gases from the fuel which are
caused to pass into the flue over the top or crown of the boiler, so that
the feed water entering the boiler at a high temperature thus prevents
the lowering of the pressure of the steam therein as above stated.
1
SPECIFICATION in pursuance of the conditions of the Letters Patent;
filed by the said Thomas Hydes and John Emil Bennett in
the Great Seal Patent Office on the 4th April 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, THOMAS
HYDES and JOHN EMIL BENNETT, both of Sheffield, in the County of
York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of October, in the year of
our Lord One thousand eight hundred and seventy-three, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Thomas Hydes and John Emil
Bennett, Her special licence that we, the said Thomas Hydes and
John Emil Bennett, our executors, administrators, and assigns, or
such others as we the said Thomas Hydes and John Emil Bennett, our
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
APPARATUS FOR HEATING THE FEED WATER OF STEAM BOILERS," upon the
condition (amongst others) that we, the said Thomas Hydes. and John
Emil Bennett, our executors or administrators, by an instrument in
writing under our, or their, or one of their hands and seals, should.

page_text: 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 we, the said Thomas Hydes and John Emil
Bennett, 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, that is to say :-
-
This Invention consists of a new and improved arrangement of
apparatus for supplying steam boilers with water at a high temperature
so as to prevent the sudden lowering of the pressure of the steam in the
said boilers and consequently to effect economy in the consumption of
fuel.
The means by which we propose to accomplish the above objects are
as follows: In a flue over the top or crown of a steam boiler we
arrange and dispose in any convenient manner a pipe or series of pipes
communicating with the reservoir or feed water supply and the boiler.
The feed water as it passes or circulates through the aforesaid pipe or
pipes becomes heated by the waste.gases from the fuel which are caused
to pass into the flue over the top or crown of the boiler, so that the feed
water entering the boiler at a high temperature thus prevents the
lowering of the pressure of the steam therein as above stated.
We would observe that if desirable we arrange one or more feed pipes
in the side flues as well as over the crown of the boiler.
And in order to explain our said Invention more fully, we now
proceed to describe the means by which it may be carried into practical
effect, reference being had to the illustrative Sheet of Drawing accom-
panying these Presents, and to the numeral figures and letters of
reference marked thereon respectively as follows :→
DESCRIPTION OF THE DRAWING..
Figure 1 is a plan view; Figure 2, a side elevation; and Figure 3, a .
sectional elevation of boiler and brickwork, shewing one way of applying
the feed water heating pipes.
A is the brickwork of boiler; B, the boiler; O, the flue over the
boiler; D is the main feed water pipe; E, the arrangement of pipes in
.

page_text: the flue over the boiler, the water circulating therein in the direction
shown by the arrows; F, the pipe entering the boiler; G, a valve which
serves to regulate the flow of the water through the pipes E.
• The effect of an apparatus as above described is as follows:--The feed
water as it circulates through the pipes E becomes heated by the waste
gases from the fuel which are caused to pass into the flue C over the
crown of the boiler, thus supplying steam boilers with water at a. high.
temperature so as to prevent the sudden lowering of the pressure of
steam in the boiler and economizing the consumption of fuel.
Having now described the nature and object of our said Invention for
"Improved Apparatus for Heating the Feed Water of Steam Boilers,"
and the means whereby it may be effected, we would remark in conclusion.
that we do not intend to limit or confine ourselves to any particular shape
or to the number of pipes we may employ, but what we claim as our In-
vention and desire to secure by the herein-before in part recited Letters 1
Patent is, the arrangement of a series of pipes fixed in the flues over
steam boilers for the purpose of heating the feed water thereof, sub-
stantially as described and represented:
In witness whereof, I, the said John Emil Bennett, one of the
parties hereto, have hereunto set my hand and seal, this Second 2
day of April, in the year of our Lord One thousand eight hundred.
and seventy-four.
Signed in my presence,
J. EMIL BENNETT. (L.S.)
HENY. THOMSON,
Justice of the Peace of & for the Borough of Sheffield,
April Second, One thousand eight hundred & seventy-four.
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