IMPROVEMENTS IN INJECTORS OR INSPIRATORS
Year: 1876

page_text: LETTERS PATENT to William Morgan-Brown, of the Firm of Brandon and
Morgan-Brown, Engineers and Patent Agents, of 38, Southampton Buildings,
London, and 1, Rue Laffitte, Paris, for the Invention of "IMPROVEMENTS IN
INJECTORS OR INSPIRATORS." A communication from abroad by John F.
Hancock, Jamaica Plains, Boston, Massachusetts, United States of America.
PROVISIONAL SPECIFICATION left by the said William Morgan-Brown at the
Office of the Commissioners of Patents on the 21st October 1876.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 1, Rue Laffitte,
Paris. "IMPROVEMENTS IN INJECTORS OR INSPIRATORS."
This Invention relates to that class of apparatus known as "injectors," but as this
title is not a correct indication of the mode and cause of action it has been given
also the name of inspirator.
The object of the Invention is,
Firstly. To supply water to a boiler by a less expenditure of power than that
required for a pump, and consequently with a greater saving of fuel.
Secondly. To draw the required quantity of water by means of the attractive
power of steam acting in one part of the apparatus from the greatest depth which a
pump is capable of doing, and to deliver the same to another part of the apparatus
in quantity equal to what the said part requires at all varying pressures of steam
from zero upwards, and with reasonable variations in the temperature of the water.
Thirdly. To regulate the supply of water to the requirements of a boiler, even
when the apparatus is exposed to sudden jars or shocks, thus ensuring a constant
and reliable feed.
These three important features, viz., economy, capacity, and reliability, have been
accomplished in this apparatus where the ordinary injector has failed.
The Invention consists in the employment and combination of two sets of
apparatus contained each in a separate chamber, the one being employed for lifting
water from a well or other source of supply and conveying or transmitting the same
to the othe chamber from whence it is conducted to the boiler.
The accompanying Drawing represents a vertical section of an apparatus
embodying the Invention.

page_text: A and B are two cylindrical casings connecting with the steam pipe S from a
boiler. The casing B contains the injector or apparatus employed for lifting the
water, and casing A contains the injector or apparatus for transmitting the water to
the boiler. The two casings are connected near their upper ends with a pipe S
leading from the boiler. At the lower end of the pipe S and between the steam
chambers in the upper portions of the casings A, B, is a circular valve chamber C¹
containing a valve V which is arranged to be partially rotated, so as to cover or
uncover, as required, the openings 1 and 2 in the steam chambers D or E, and to
admit of the passage of the steam from the pipe S to the chamber D in casing A,
and also into chamber E.
In chamber E is a conical pipe or passage a, the larger diameter of the same
being at the lower end, so that the steam in passing through the same is allowed to
expand. Below the pipe a is a conical tube b, a space g being left between the two,
and the area of the upper part of the tube b being somewhat larger than that of the
lower end of the tube a. The tube or passage b is contracted for a short distance
and then expands again, as shown in the Drawing, the lower end of the same being
closed and provided with orifices h, h, connecting with the conduit J, which
communicates with the casing or chamber A and extends thence to the boiler. Near
the upper portion of the pipe b and surrounding the same is a valve m seated on a
corresponding projection n and which is allowed a slight vertical motion.
The object of the valve m is to prevent the water from falling in the event of its
upward flow being partially and teinporarily checked by the pressure of air at the
space g or by the passage of water through the jet tube a.
In the steam chamber D is fitted a conical tube c, the larger end being at the
bottom and opening into an annular space c¹. Below the tube c is another conical
tube d, which I term a "combining tube," a space being left at the top so as to
admit of the passage of water or steam from the main chamber of casing B into the
said tube. The upper end of the tube is considerably larger than the lower end
of tube c, and at the diminished portion d' is a groove e for the purpose of
equalizing the velocity of the water as it passes across the horizontal section of the
moving column at that point. From the point d¹ the tube f extends downwards
expanding towards the bottom which is open, and below the opening is a valve / for
closing the same when necessary. Near the lower end of the tube fare openings k, k,
through which the water passes into the conduit J when the valve is closed."
The operation is as follows:-The apparatus being connected with the boiler by
the pipe S, and the casing or chamber B being connected at W with a well or other
water supply, the valve V is set so as to allow the steam to pass from the pipe S
into the steam chamber E, the valve being open. The steam then passes through
the tubes a, a¹, across the opening or space g into the tube b, and thence out
through the openings h, h, into the conduit J, thence to the chamber in casing B,
and then upwards over the top of and into the tube d, when it descends through the
pipe and passes out at the openings k, k, into the conduit D', and makes its exit,
unless condensed during its passage by means of an ordinary valve placed in the
extension of conduit D¹ before reaching the check valve of the boiler. A portion of
the steam in conduit J will pass downward and enter the tube f at the valve
opening, thence upwards through the openings k, k. The flow of steam across the
interval between the tubes a and b in chamber B, soon exhausts the air contained
in the chamber or casing A and the pipes connecting with the water supply which
allows the water to ascend to condense the steam and fill all the passages to the
bottom of tube f. The valve is then closed and the water passes upwards to the
top of chamber A and flows downwards through the pipe d, leaping across the
groove d¹ and into the tube f and passes out through the orifices h, k, into the con-
duit D, and thence towards the valve. between the check valve of the boiler and
the apparatus. As soon as the valve is closed, the valve V is turned so as also to
open communication from the pipe S to the chamber D, as shown in the Figure,
which allows the steam to flow through the tube c into the water, which is now
pussing through the combining tube & when the steam is condensed. The flow of

page_text: water being now accelerated by this second jet of steam moves rapidly through the
conduit D' to the temporary outlet in the same, and upon the closing of the valve
can only escape through the check valve into the boiler.
By diminishing the flow of steam from the boiler a corresponding diminution of
the quantity of water is supplied to the boiler.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Morgan-Brown in the Great Seal Patent Office on the 13th
April 1877.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 1, Rue Laffitte,
Paris. "IMPROVEMENTS IN INJECTORS OR INSPIRATORS." A communication from
abroad by John F. Hancock, Jamaica Plains, Boston, Massachusetts, United States
of America.
The object of the Invention is,-
Firstly. To supply water to a boiler by a less expenditure of power than that
required for a pump, and consequently with a greater saving of fuel.
Secondly. To draw the required quantity of water by means of the attractive
power of steam acting in one part of the apparatus from the greatest depth which a
pump is capable of doing, and to deliver the same to another part of the apparatus
in quantity equal to what the said part requires at all varying pressures of steam,
from zero upwards, and with reasonable variations in the temperature of the water.
Thirdly. To regulate the supply of water to the requirements of a boiler, even
when the apparatus is exposed to sudden jars or shocks, thus ensuring a constant
and reliable feed.
These three important features, viz., economy, capacity, and reliability, have been
accomplished in this apparatus where the ordinary injector has failed.
The Invention consists in the employment and combination of two sets of
apparatus contained each in a separate chamber, the one being employed for lifting
water from a well or other source of supply and conveying or transmitting the same
to the other chamber from whence it is conducted to the boiler.
The accompanying Drawing represents a vertical section of an apparatus
embodying the Invention.
A and B are two cylindrical casings connecting with the steam pipe S from a
boiler. The casing B contains the injector or apparatus employed for lifting the
water, and casing A contains the injector or apparatus for transmitting the water to
the boiler. The two casings are connected near their upper ends with a pipe S
leading from the boiler. At the lower end of the pipe S and between the steam
chamber in the upper portions of the casings A, B, is a circular valve chamber C¹
containing a valve V which is arranged to be partially rotated, so as to cover or
uncover, as required, the openings 1 and 2 in the steam chamber D or E, and to
admit of the passage of the steam from the pipe S to the chamber D in casing A,
and also into chamber E.
In chamber E is a conical pipe or passage a, the larger diameter of the same
being at the lower end, so that the steam in passing through the same is allowed to
expand. Below the pipe a is a conical tube , a space g being left between 6 being
somewhat larger than that of the lower end of the tube a. The tube or passage bis
contracted for a short distance and then expands again, as shown in the Drawing,
the lower end of the same being closed and provided with orifices h, h, connecting
with the conduit J, which communicates with the casing or chamber A and extends
thence to the boiler. Near the upper portion of the pipe band surrounding the
same is a valve m seated on a corresponding projection n and which is allowed a
slight vertical motion.
The object of the valve m is to prevent the water from falling in the event of its

page_text: upward flow being partially and temporarily checked by the pressure of air at the
space or by the passage of water through the jet tube a.
In the steam chainber D is fitted a conical tube c, the larger end being at the
bottom and opening into an annular space c¹. Below the tube c is another conical
tube d, which I term a "combining tube" a space being left at the top so as to
admit of the passage of water or steam from the main chamber of casing B into the
said tube. The upper end of the tube d is considerably larger than the lower end
of tube c, and at the diminished portion a¹ is a groove e for the purpose of
equalizing the velocity of the water as it passes across the horizontal section of the
moving column at that point. From the point d' the tube f extends downwards
expanding towards the bottom which is open, and below the opening is a valve l
for closing the same when necessary. Near the lower end of the tube fare
openings k, k, through which the water passes into the conduit J when the valve
is closed.
The operation is as follows:-The apparatus being connected with the boiler by
the pipe S, and the casing or chamber B being connected at W with a well or other
water supply, the valve V is set so as to allow the steam to pass from the pipe S
into the steam chamber E, the valve being open. The steam then passes through
the tubes a, a¹, across the opening or space g into the tube b, and thence out
through the openings h, h, into the conduit J, thence to the chamber in casing A,
and then upwards over the top of and into the tube d, when it descends through
the pipe and passes out at the openings k, k, into the conduit D¹, and makes its
exit, unless condensed during its passage, by means of an ordinary valve placed in
the extension of conduit D¹ before reaching the check valve of the boiler. A portion
of the steam in conduit J will pass downward and enter the tube f at the valve
opening 1, thence upwards through the openings k, k. The flow of steam across the
interval g between the tubes a and b in chamber B, soon exhausts the air contained
in the chamber or casing A and the pipes connecting with the water supply, which
allows the water to ascend to condense the steam and fill all the passages in the
bottom of tube f. The valve is then closed and the water passes upwards to
the top of the chamber A and flows downwards through the pipe d leaping across the
groove e, d², and into the tube f and passes out through the orifices k, k, into the
conduit D', and thence towards the valve between the check valve of the boiler and
the apparatus. As soon as the valve is closed, the valve V is turned so as also to
open communication from the pipe S to the chamber D, as shown in the Figure,
which allows the steam to flow through the tube c into the water, which is now
passing through the combining tube d when the steam is condensed. The flow of
water being now accelerated by this second jet of steam moves rapidly through the
conduit D to the temporary outlet in the same, and upon the closing of the valve
can only escape through the check valve into the boiler.
By diminishing the flow of steam from the boiler a corresponding diminution of
the quantity, of water is supplied to the boiler.
Having now described and particularly set forth the nature of the said Invention
and the manner of carrying the same into effect, I would have it understood what
I claim is,-
First. The combination of an injector for forcing water into a boiler, and a second
injector communicating with a well or other supply of water, and also communi-
cating with and supplying water to the first injector, substantially as described.
Second. The combination of two communicating injectors, one communicating
with a well or other supply of water, and the other with a boiler and a valve
whereby steam may be directed to either or both, substantially as specified.
Third. The combination of the steam chamber E, jet tube a, the interval g,
combining tube b, b', and the valve m, the whole comprising a lifting apparatus, as
set forth.
Fourth. The combination of the steam chamber D, the jet tube c, annular space c¹,
and the combining tube d, d, the whole composing a transmitting apparatus,
substantially as described.

page_text: Fifth. The groove e in combination with a combining tube d, d', and a delivery
tube f, as and for the purpose specified.
In witness whereof, I, the said William Morgan-Brown, have hereunto set my
hand and seal, this Tenth day of April, in the year of our Lord One thousand
eight hundred and seventy-seven.
WILLIAM MORGAN-BROWN. (L.S.)