Improvements in Injectors.
Year: 1893

page_text: Date of Application, 30th Oct., 1893
Complete Specification Left, 22nd Dec., 1893-Accepted, 10th Feb., 1894
Improvements in Injectors.
I, PATRICK BROWNLEY, of St. John, Dominion of Canada, do hereby declare
the nature of this invention to be as follows:-
My invention relates to an improvement in injectors, and its object is to provide
a device of the simplest possible construction, in which all throttle valves and
other regulating devices usually present in attachments of this character are
effectually dispensed with.
My device is rendered operative by the use of a single cock which is turned by a
lever, whose movement is limited by suitably arranged stops, thereby rendering
the operation thoroughly mechanical and such as can be effected as well by an
inexperienced person as an engineer.
-
The invention consists in certain novel features of construction hereinafter fully
described and claimed and illustrated in the accompanying drawings, in which :-
Figure 1, is a side elevation of my improved injector.
Figure 2, is an edge view of the same.
Figure 3, is a vertical sectional view.
Figures 4, 5, and 6, are horizontal sectional views taken on lines 4-4, 5-5,
and 6-6, respectively of Figure 1.
Figure 7, is a sectional view of the lower portion of the device, the turning plug
or cock being shown in an injecting position.
The device consists of an irregular enclosing shell A provided with a vertical
web.or partition B, which serves to separate elevating chamber C from the
discharge chamber D. The upper end of the shell or casing A is provided with an
enlarged removable capping E, which forms a steam inlet chamber and arranged
immediately thereunder and directly over chambers C and D, are the removable
and vertically recessed heads F and G, respectively, through which the steam
passes to said chambers. The discharge or forcing chamber D is considerably
larger than chamber C, and extends thereunder, as shown at D', where it is placed
in communication with said chamber C by vertical tube H, which projects upward
therein within close proximity to head F. Water supply I leads into said
chamber C, as shown.
Extending vertically from the lower end of chamber D is well.J, and removably
secured in its upper end is the forcing tube K, which terminates quite close to the
lower end of head G. The lower end of the well is curved laterally, as shown, and
terminates with passage J¹ which is adapted to be opened and closed by the
transverse turning plug or cock M having formed therethrough passage N, which is
adapted to place said passage J¹ in direct communication with boiler discharge O,
or when turned to a horizontal position is equally effective in placing passage P
leading from chamber D in communication with overflow pipe Q arranged on the
opposite side of the said turning plug.
One edge of the turning plug or cock is cut away as shown at R, thus serving to
place passage J in communication with the overflow along with passage P, for the
purpose presently to be stated.
The cock is preferably conical in form, as indicated in dotted lines in Figure 2,
and has its inner end to bear in the boxing S, while encircling its outer end for the
purpose of holding it in proper position is the gland T, and arranged upon the
projecting stem of the plug is operating lever Ü having projecting therefrom a
short arm U¹ to engage stops V on gland T, which serves to limit the movement of
017

page_text: the lever and which stops are so arranged as to regulate to a nicety the throw of
the cock.
For starting the injector the cock M is turned to the position shown in Figure 3,
with the lever inclined as shown in dotted lines in Figure 1. Steam is then
admitted through capping E and heads F and G to tubes H and K through
which it descends into chamber D and well J. From the former it continues its
course through passage l' and cock passage N to the overflow while from well J it
discharges through passage J and cut out portion R to the overflow, as will be
readily understood:
This operation is continued until all the air in chamber C has been withdrawn,
thereby inducing by suction a flow of water thereinto, which is carried by the
inflowing steam downward through tube H and into chamber D.
As soon as water begins to discharge from the overflow, cock N is turned into
the position shown in Figure 7, thus closing the communication between chamber D
and well with the overflow and placing said well in direct line with the boiler
to be supplied with water. The water is safely lodged in chamber D and from
there it is drawn or forced downward into tube K by the inflow of steam through
head G from whence it is conducted through the cock and to the boiler, as before
explained.
Well J is turned laterally at its lower end to accomplish the two fold purpose
of reaching the overflow through small cut out R, and also that a deflecting
surface may be provided against which tube K may discharge, thus relieving the
cock of the wear which would ensue should the discharge be directed against it.
The orifice in head G is made larger than the one in head F, so that the passage of
steam therethrough may be accompanied with greater force, thereby effectually
drawing or forcing the water from chamber D downward through tube K and
well J.
Dated this 30th day of October 1002
PATRICK BROWNLEY,
By L. W., per F. B.
improvements in Injectors.
I, PATRICK BROWNLEY, of St. John, Dominion of Canada, do hereby declare
the nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
My invention relates to an improvement in injectors and its object is to provide a
device of the simplest possible construction, in which all throttle valves and other
regulating devices usually present in attachments of this character are effectually
dispensed with.
My device is rendered operative by the use of a single cock which is turned by a
lever, whose movement is limited by suitably arranged stops, thereby rendering
the operation thoroughly mechanical and such as can be effected as well by an
inexperienced person as an engineer.
The invention consists in certain novel features of construction hereinafter fully
described and claimed and illustrated in the drawings filed with my Provisional
Specification in which :-
Figure 1, is a side elevation of my improved injector.

page_text: Figure 7, is a sectional view of the lower portion of the device, the turning plug
or cock being shown in an injecting position.
The device consists of an irregular enclosing shell A provided with a vertical web
or partition B, which serves to separate elevating chamber C from the discharge
chamber D. The upper end of the shell or casing A is provided with an enlarged
removable capping E, which forms a steam inlet chamber and arranged immediately
thereunder and directly over chambers C and D, are the removable and vertically
recessed heads F and G, respectively, through which the steam passes to said
chambers. The discharge or forcing chamber D is considerably larger than
chamber C, and extends thereunder, as shown at D¹, where it is placed in communi-
cation with said chamber C by vertical tube H, which projects upward therein
within close proximity to head F. Water supply I leads into said chamber C,
as shown.
Extending vertically from the lower end of chamber D is well J, and removably
secured in its upper end is the forcing tube K, which terminates quite close to the
lower end of head G. The lower end of the well is curved laterally, as shown, and
terminates with passage J' which is adapted to be opened and closed by the
transverse turning plug or cock M having formed therethrough passage N, which
is adapted to place said passage J¹ in direct communication with boiler discharge O,
or when turned to a horizontal position is equally effective in placing passage P
leading from chamber D in communication with overflow pipe Q arranged on the
opposite side of the said turning plug.
One edge of the turning plug or cock is cut away as shown at R, thus serving to
place passage J in communication with the overflow along with passage P, for the
purpose presently to be stated.
The cock is preferably conical in form, as indicated in dotted lines in Figure 2,
and has its inner end to bear in the boxing S, while encircling its outer end for the
purpose of holding it in proper position is the gland T, and arranged upon the
projecting stem of the plug is operating lever U having projecting therefrom
a short arm U¹ to engage stops V on gland T, which serves to limit the movement
of the lever and which stops are so arranged as to regulate to a nicety the throw of
the cock.
For starting the injector the cock M is turned to the position shown in Figure 3,
with the lever inclined as shown in dotted lines in Figure 1. Steam is then
admitted through capping E and heads F and G to tubes H and K through which
it descends into chamber D and well J. From the former it continues its course
through passage P and cock passage N to the overflow while from well J it
discharges through passage J¹ and cut out portion R to the overflow, as will be
readily understood.
This operation is continued until all the air in chamber C has been withdrawn,
thereby inducing by suction a flow of water thereinto, which is carried by the
inflowing steam downward through tube H and into chamber D.
As soon as water begins to discharge from the overflow, cock N is turned into
the position shown in Figure 7, thus closing the communication between chamber D
and well J with the overflow and placing said well in direct line with the boiler to
be supplied with water. The water is safely lodged in chamber D and from there
it is drawn or forced downward into tube K by the inflow of steam through head G
from whence it is conducted through the cock and to the boiler, as before
explained.
Well J is turned laterally at its lower end to accomplish the two fold purpose of
reaching the overflow through small cut out R, and also that a deflecting surface
may be provided against which tube K may discharge, thus relieving the cock of
the wear which would ensue should the discharge be directed against it. The orifice
in head G is made larger than the one in head F, so that the passage of steam
therethrough may be accomplished with greater force, thereby effectually drawing
or forcing the water from chamber D downward through tube K and well J.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In an injector having water and steam inlets, a lifting chamber, a forcing
chamber, passages extending from the latter, an overflow, a boiler discharge, and a
single cock intersecting the said passages the boiler discharge and the overflow, for
the purpose described.
2. In an injector having water and steam inlets, a lifting chamber, a forcing
chamber, an overflow, a boiler discharge, passages leading from the forcing chamber
to the said overflow and discharge, and a single cock intersecting said passages-the
overflow and the discharge, the said cock being formed with a transverse opening,
whereby said passages may be closed to the boiler and opened to the overflow, or
closed to the overflow with one of the passages open to the boiler, substantially as
shown and described.
3. In an injector having water and steam inlets, a lifting chamber, a forcing
chamber, an overflow, a boiler discharge, passages extending from the said overflow
and discharge to the forcing chamber, which passages intersect at substantially.
right angles to each other, and a cock at the said point of intersection having a
transverse passage which is adapted to continue the boiler passage and break the
cverflow passage, or continue both of said. passages with the overflow and close the
boiler discharge, substantially as shown and described.
4. In an injector having water and steam inlets, a lifting chamber, a forcing
chamber having passage P, well J, an overflow, a boiler discharge, and a cock
arranged at the junction of the overflow the discharge passage P and well J, said
cock being formed with passages N and R, substantially as shown and described.
Dated this 22nd day of December 1893.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.