A NEW OR IMPROVED APPARATUS FOR UTILIZING THE WASTE HEAT FROM STEAM BOILERS SO AS TO HEAT THE FEED WATER FOR THE SAME, AND TO ECONOMIZE FUEL
Year: 1871

page_text: LETTERS PATENT to Robert Sutcliffe, of Castle Mills, Idle, near
Leeds, in the County of York, Cotton Doubler, for the Invention
of "A NEW OR IMPROVED APPARATUS FOR UTILIZING THE WASTE HEAT FROM
STEAM BOILERS SO AS TO HEAT THE FEED WATER FOR THE SAME, AND TO
ECONOMIZE FUEL."
Sealed the 13th February 1872, and dated the 23rd November 1871.
PROVISIONAL SPECIFICATION left by the said Robert Sutcliffe at the
Office of the Commissioners of Patents, with his Petition, on the
23rd November 1871.
I, ROBERT SUTCLIFFE, of Castle Mills, Idle, near Leeds, in the
County of York, Cotton Doubler, do hereby declare the nature of the
said Invention for "A NEW AND IMPROVED APPARATUS FOR UTILIZING THE
WASTE HEAT FROM STEAM BOILERS 80 AB TO HEAT THE FEED WATER FOR THE
SAME, AND TO ECONOMIZE FUEL," to be as follows:-
This Invention has for its object the construction and employment of
an apparatus for utilizing the waste heat from steam boilers so as to

page_text: The apparatus consists of a series or number of straight pipes (sup-
ported on swivel bearings so as to admit expansion and contraction)
through which the water for feeding the boiler is caused to pass. The
said pipes are arranged within the flue from the boiler to the chimney,
one over or above the other, and the ends or turning points are
connected by pipes of curved or of other form. The straight lengths of
pipes cross each other at or about midway of their length, and the ends
are so connected as to form a continuous length to effect a complete
circulation of the water. Inlet and outlet pipes are employed in
connection therewith of any ordinary construction. Man-holes are 1
provided in the flue to admit access for cleaning the apparatus.
Where more than one such length or series of pipes is to be employed
a collar or joint will be attached to the open ends of the first lengths.
to which other similar pipes will be secured and arranged to cross each
other, the ends being connected by curved pipes in like manner.
Apparatus coustructed as above possesses a great amount of heating
surface within a small space, is well adapted for retarding and absorbing
the heat, and is inexpensive of construction.

page_text: assigns, or such others as I, the said Robert Sutcliffe, 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 "A NEW OR IMPROVED
APPARATUS FOR UTILIZING THE WASTE HEAT FROM STEAM BOILERS SO AS TO HEAT
THE FEED WATER FOR THE SAME, AND TO ECONOMISE FUEL," upon the condition
(amongst others) that I, the said Robert Sutcliffe, 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

page_text: Where more than one such length or series of pipes are to be
employed a collar or joint will be attached to the open ends of the first
lengths to which other similar pipes will be secured and arranged to
cross each other, the ends being connected by curved pipes in like
manner.
Apparatus constructed as above possesses a great amount of heating
surface within a small space, is well adapted for retarding and absorbing
the heat, and is inexpensive of construction.
Fig. 1 is an elevation of a series of pipes arranged so as to constitute
an apparatus according to the Invention and for the purpose above
described; at Fig. 2 is a plan view of the same.
At A, A, are shewn the straight pipes supported on and by the swivel
bearings B, so as to admit expansion and contraction. The pipes A are
arranged within the flue C, one pipe being over or above another, and
the ends or turning points are connected by pipes D, curved or of other
form, so as to complete the circulation of the water therein, the straight
pipes A cross each other at or about midway their length as shewn at E,
and the other ends thereof are in like manner connected by the curved
pipes D¹.
When more than one length or series of straight pipes A (see Fig. 3)
are employed, a collar or joint F will be attached to the open ends of
the first lengths of pipes, to which collars other similar pipes A will be
secured and arranged to cross each other, the ends being connected by
curved pipes D¹ in like manner. At G is shewn inlet pipe for supply
of water, and at H is outlet pipe for heated water.
The apparatus constructed as above possesses a great amount of
heating surface within a small space, is well adapted for retarding and
diffusing the flames and heated gases (as shewn by arrows), and is
inexpensive of construction.
Having thus fully described the nature of my said Invention, and

page_text: Claim
كسة
дуениоп, пе construction and arrangement or
apparatus in the manner and for the purpose herein fully described,
and shewn in the Drawings.
In witness whereof, I, the said Robert Sutcliffe, have hereunto set
my hand and seal, this Fourteenth day of March, in the year of
our Lord One thousand eight hundred and seventy-two.
ROBERT SUTCLIFFE. (L.S.)
Witness,
WALTER BRIERLEY,
Tasker & Brierley,
Patent Agents,
Halifax & Blackburn.