IMPROVE. MENTS IN UTILIZING THE EXHAUST STEAM FROM STEAM ENGINES, AND IN APPARATUS FOR REGULATING THE DISCHARGE OR FLOW THEREOF
Year: 1869

page_text: LETTERS PATENT to Joseph Shackleton, of Bradford, in the County
of York, Engineer and Machinist, for the Invention of "IMPROVE.
MENTS IN UTILIZING THE EXHAUST STEAM FROM STEAM ENGINES, AND IN
APPARATUS FOR REGULATING THE DISCHARGE OR FLOW THEREOF."
Scaled the 2nd November 1869, and dated the 3rd May 1869.
1, JOSEPH SHACKLETON, of Bradford, in the County of York, Engineer
and Machinist, do hereby declare the nature of the said Invention for
IMPROVEMENTS IN UTILIZING THE EXHAUST STEAM FROM STEAM ENGINES, AND IN
APPARATUS FOR REGULATING THE DISCHARGE OR FLOW THEREOF," to be as
follows:-
This Invention consists in using exhaust steam for heating or boiling
water or other liquids in the processes of dycing, scouring, soap boiling,
brewing, cooking, or other similar purposes, also for heating or warming
the rooms of buildings or factories. For this purpose I apply a self-

page_text: acting regulator valve to the ordinary exhaust pipe of the steam engine,
and also any suitable arrangement of piping connected to the exhaust
pipe between the valve and the steam engine for conducting the said
exhaust steam to the place and for the purposes required. This valve
is constructed similar to an ordinary mushroom stop valve, but the
valve is under the action of a spiral spring which is regulated or adjusted
by a set screw to any desirable amount of pressure, so that the exhaust
steam to be utilized will only pass through the said conducting pipes
at such pressure as the regulator valve is set or adjusted to, therefore
any greater pressure of the exhaust steam will open the valve, and the
said steam will escape by the ordinary exhaust pipe. The conducting
pipe is also arranged to pass through the flue from the boiler furnace
in a series of coils of any convenient form, whereby the said exhaust
steam becomes superheated before being applied to the various uses to
which it is applicable.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Shackleton in the Great Seal Patent Office
on the 3rd November 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, 1, JOSEPH
SHACKLETON, of Bradford, in the County of York, Engineer and
Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters ratent, bearing date the 3rd day of May, in the year of our
Lord One
One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and succes-
sors, give and grant unto me, the said Joseph Shackleton, Her special
licence that I, the said Joseph Shackleton, my executors, administrators,
and assigns, or such others as 1, the said Joseph Shackleton, my exe-
cutors, 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 "IMPROVEMENTS IN
UTILIZING THE EXHAUST STEAM FROM STEAM ENGINES AND IN APPARATUS FOR
REGULATING THE DISCHARGE OR FLOW THEREOF," "pon the condition (amongst

page_text: others) that I, the said Joseph Shackleton, my executors or adminis-
trators, 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 1, the said Joseph Shackleton, 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 and accompanying Sheet of Drawings (that is to
say):-
This Invention consists in using exhaust steam for heating or boiling
water or other liquids in the process of dyeing, scouring, soap boiling,
brewing, cooking, or other similar purposes, also for heating or warming
the rooms of buildings, railway carriages, or factories. For this purpose
I apply a self-acting regulator valve to the ordinary exhaust pipe of
the steam engine, and also any suitable arrangement of piping con-
nected to the exhaust pipe between the valve and the steam engine
for conducting the said exhaust steam to the place and for the purposes
required. This valve is constructed similar to an ordinary mushroom
stop valve, but the valve is under the action of a spiral spring which is
regulated or adjusted by a set screw to any desirable amount of pressure
so that the exhaust steam will open the valve and the said steam will
escape by the ordinary exhaust pipe. The conducting pipe is also
arranged to pass through the flue from the boiler furnace in a series of
coils of any convenient form whereby the said exhaust steam becomes
superheated before being applied to the various uses to which it is applic-
able.
In order that the Invention may be more readily understood I herein
give reference to an accompanying Sheet of Drawings illustrating the
manner of performing the same or carrying the Invention into practical
operation.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 represents a cross section of a building with the location of
the boiler A, engine B, steam pipe C, exhaust D, bypass W, super-
heating pipes H, heating pipe J, and heating series M, M, N, N, also

page_text: boiler heating pipes K and L, L, L; P, P, are condensing pipes. O is
the return condensing pipe leading to the tank or boiler feeder R, and
G is a back pressure guage. The operation of this system of heating
by exhaust steam consists in conducting the steam after it has actuated
the engine into the superheater H, where it gains a greatly increased
temperature. It is then passed through pipe J into the series of heaters
M, M, N, N, K, L, L, L, where it radiates its surplus heat to warm
buildings, or to dyers' kettles and the various heating purposes for which
steam is ordinarily employed. After the steam has made its circuit
in the series of heating pipes M, M, N, N, it becomes condensed and
flows back through pipes P, P, and O into the tank or feeder R in the
form of pure distilled water of a high temperature, which is then
returned to the boiler, thereby saving fuel and preventing incrustation
in the boiler. It will be observed that the exhaust steam is superheated
by the waste heat of the furnace that heats the boiler at little or no
extra expense for fuel. When the engine B is not at work valve E
is closed, and steam is taken directly from the boiler A through the
bypass pipe W and passed through the superheater in the usual manner.
To supply the heating system the automatic valve at F more fully
shewn at Fig. 4 is arranged with a spiral spring in stem E which holds
the valve to its seat screw. V regulates the tension of the spring. The
office of this valve F is to open when the back pressure is too great
and give direct exit to the steam and prevent re-acting upon or stopping
the engine.
Fig. 2 is another arrangement of pipes for heating rooms; Fig. 3 is
a sectional elevation of the self-acting regulator valve; Fig. 4 is a
sectional view of one differently constructed; A shews the shell of my
improved valve provided with apertures B and B. The aperture B is
threaded upon its interior to admit of its being connected to the exhaust
pipe of a steam engine while the aperture B is also threaded to allow
a pipe to be connected easily to the same. C shows the valve seat upon
which bears or rests the valve I supported by the stem E passed
through the cap F secured in the aperture B³ of the shell A. Upon
the raised portion of this cap is the threaded projection G over which
is screwed one end of the tube H in which is placed a spring 1, the
position of which spring I relatively to the stem E (a portion of which
is received within the tube H) is regulated by the disc J secured upon
the end of spindle K inserted within the upper end of the tube H.

page_text: This spindle K is provided with a screw thread to admit of its being
readily manipulated by the hand of the operator, and has placed upon
it the check nut L governing the extent of its entrance within the
tube H. Upon the end of the spindle is the blank wheel M by which
the spindle is operated.
Such being the construction the operation is as follows:-The valve is
attached by screwing the threaded aperture B of the shell A over the
end of the exhaust pipe of a steam engine. The exhaust steam enters
the body of the shell A and opens the valve D supported by the stem E
allowing the steam not used to pass off through the aperture B². The
valve D is regulated as may be desired or to accommodate itself to the
pressure of the steam by compressing or relaxing the spring I held within
the tube H by means of the disc J secured upon the end of the spindle K
which has a direct bearing upon or against the upper end of the spring I
the forward end of which bears up or against the end of the valve
stem E. The exhaust pipe may be tapped at any convenient point
below the valve, and the steam supplied from the exhaust pipe of the
engine may be conducted from the same by means of pipes, and be
employed for heating, boiling, and other purposes. The value of the
Invention is found in the ability it affords the user to utilize exhaust
steam while the adjustability of the spring as shewn renders the valve
applicable to engines of different sizes, and at the same time enables
the operator to correct any wear of spring that may occur. By this
system of superheating and utilizing exhaust steam twenty-five per
cent. of fuel may be saved.
Having thus described my system of heating by exhaust steam and
shewn the manner in which the same is performed or carried into
practise, I wish it to be understood that what I claim and desire to
secure by Letters Patent is,-
Firstly. The use of superheated exhaust steam for heating buildings
and other purposes as above mentioned.
Secondly. The utilizing of waste heat of a steam boiler to superheat
steam for heating purposes, substantially as and for the purposes set
forth.
Thirdly. The combination of a system of heating by exhaust steam,
substantially as described, with the condensing apparatus, substantially
as and for the purposes described.

page_text: Fourthly. The combination of automatic valve F with the super-
heating and heating apparatus, substantially as and for the purposes
represented.
Fifthly. The arrangement of the valve D with its conical cup
seat C, the stem E, cap F, projection G, tube H, spring I, disc J,
screw K, and check nut L, substantially as herein set forth.
In witness whereof, I, the said Joseph Shackleton, have hereunto
set my hand and seal, this Twenty-fourth day of September, in
the year of our Lord One thousand eight hundred and sixty-
nine
Witness,
JAMES ROBINSON.
JOSEPH SHACKLETON. (L.S.)