Improvements in Vacuum Pumps.
Year: 1890

page_text: Date of Application, 13th May, 1890-Accepted, 28th June, 1890
COMPLETE SPECIFICATION.
[Communicated from abroad by JOHN PATTEN MANUFACTURING COMPANY, of Mills
Buildings, No. 15, Broad Street, City and State of New York, United States of
America.]
Improvements in Vacuum Pumps.
1, HENRY HARRIS LAKE, of the firm of Haseltine, Lake and Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 :-
This invention consists of a triple chambered vacuum pump, the pump chambers of
which are preferably arranged in vertical axial alignment and are all contained within
a closed cylindrical casing. In the preferable forin of organizing the apparatus, the
three pistons, which are hereinafter collectively referred to as the piston system, are
rigidly connected with each other and are simultaneously reciprocated by means of a
single crank on the inner end of a rotating shaft projecting into the interior of the
casing.
The three pump chambers are of relatively diminishing volume. The first chamber,
herein called the primary chamber, which is at the top, is the largest and is that into
which the air from the vessel which is to be exhausted is first drawn by the upward
stroke of the primary piston.
At the commencement of the ensuing downward stroke a positively operated valve
which has just previously closed the passage through which the air was drawn into
the primary chamber opens communication from the primary chamber into the second
pump chamber, which is herein called the intermediate chamber and which is of
smaller size than the primary pump chamber. During the downward stroke of the
primary piston the air is expelled from the primary chamber into the intermediate
chamber and its entrance therein is facilitated by the concurrent downward movement
of the intermediate piston. At the commencement of the upward stroke of the piston
system the valve which bas just previously closed the communication between the
upper two pump chambers, opens communication between the intermediate chamber
and the third or lowest pump chamber, which is herein called the discharging
chamber, which is of still smaller size.
It hence results that during the upward stroke of the piston system the air is
expelled from the intermediate chamber and is driven into the lower end of the dis-
charging chamber, into which its entrance is facilitated by the concurrent upward
movement of the discharging piston.
At the commencement of the downward stroke the valve as before, opens
communication between the primary and intermediate pump chambers having
previously closed the communication between the intermediate and discharging pump.
chambers, so that during the downward stroke of the piston system the air in the
discharging chamber is compressed and when its pressure rises sufficiently is dis-
charged therefrom through a check valve adjusted to yield at a prescribed internal
pressure. The intermediate and discharging pistons are tightly packed in the
ordinary manner against the walls of the intermediate and discharging chambers,
respectively, but the primary piston, instead of having a tightly packed periphery, is
provided with a downwardly projecting cylindrical flange which is partially immersed
in a body of oil, or other sealing liquid, contained in an annular cell which extends
downward from the bottom of the primary pump chamber. The primary piston,
therefore, is an inverted cup piston. In fact, it is a slightly conical plate affixed to
and closing the upper end of a hollow cylinder, the lower end of which moves up and
down in the annular body of sealing liquid.

page_text: This plate is mounted upon the upper end of a hollow piston rod which is seated in
a bearing formed in the head of the intermediate chamber. The lower end of this
hollow piston rod is secured to the centre of the intermediate piston which is formed
in one piece with a shell extending down to and connected with the discharging
piston. This shell, which for convenience is herein called the piston carrier, has
openings in its sides, and is of sufficient diameter to allow space for the projection.
into it of the driving crank which is linked to a. cross head affixed to the discharging
piston.
The space within and around this piston carrier is in constant communication, by
means of the hollow piston rod which has been referred to, with the space within the
casing above the primary piston.
It results from this organization that a comparatively small amount of power is
required to impart reciprocating motions to the pistons, because they are unaffected
by atmospheric pressure in their movements and because the large primary piston is
moved without any friction except the moderate friction which results from the
bearing of the hollow piston rod, to which it is attached, upon its seat, in the head of
the intermediate chamber.
The primary chamber has a hollow base; its lower end being a stationary cylinder
which is of smaller diameter than the casing and which is closed at the top and open
at the bottom where it is provided with an outwardly extending circumferential
flange. The surface of this cylinder constitutes the inner wall, the adjacent portion of
the casing constitutes the outer wall, and the flange at the lower end of the stationary
cylinder constitutes the bottom, of the annular cell containing the sealing liquid. The
closed head of the intermediate chamber extends up into the hollow base of the
primary chamber.
For the sake of keeping the working parts thoroughly lubricated, the portions of
the interior of the casing containing them are also filled with oil.
The intermediate and discharge pistons are provided upon their periphery with
circumferential grooves which during the outward strokes of said pistons from their
respective chambers are carried into the body of oil contained within the casing and
thus become filled respectively with annular masses of oil which upon their return
strokes they carry into their chambers and which serve not only the purpose of
lubrication but also assist in packing the pistons in their chambers.
Certain peculiarities in the mode of operation of the invention will be more
conveniently pointed out after a detailed description of the structure represented in
the accompanying drawings; in which
Figure 1 is a central vertical section of the apparatus in a plane which is slightly
diagonal to the vertical plane of the axis of the driving shaft, which together with its
inner bearing and the crank and pitman are shown in isometrical perspective, the
plane of section being indicated by the dotted line 1 1 on figure 5.
Figure 2 is a vertical section taken through the plane indicated by the dotted
line 2 2 on figure 3.
Figures 3, 4, 5 and 6 are respectively horizontal sections taken through the planes
indicated by the dotted lines 3 3, 44, 5 5, and 6 6, on Figure 2.
The pump structure represented in the drawings is contained within an air-tight
cylindrical casing A. This casing is composed of three sections. The base section a,
the intermediate section a', and the upper section a².
The base section a is closed at the bottom and has an outward circumferential:
flange at its upper end and around a portion of its upper end also has an inward-
flange. The lower end of the intermediate section a¹ is similarly flanged.
The upper end of the intermediate section is also provided with an outward
circumferential flange which affords the bearing for the outward circumferential
flange of the hollow base of the primary pump chamber, upon the top of which the
other circumferential flange of the uppermost section a² of the casing bears.
The superposed outward flanges are secured to each other by vertical bolts and
nuts.

page_text: This sectional construction is adopted for convenience in assembling the various
parts of the structure and may of course be varied without departing from the present
invention.
The reciprocating piston system is actuated by a horizontal driving shaft B,
provided with one bearing b, on the outside of the intermediate section of the
casing and with another bearing b', inside the intermediate section of the casing.
The overhanging end of the driving shaft B, has mounted upon it a loose pulley B¹,
and a fixed pulley B² to either of which the driving belt may be applied. The inner
end of the driving shaft has affixed to it the crank disc B³, provided with the.crank
pin B. The pitman or link C, hung at its upper end upon the crank pin B,
pivotally connected at its lower end with the cross head D of the discharging
piston D, which is tightly packed and reciprocates in the discharging pump
chamber d. The latter is preferably cast in one piece with the lowest section a of the
casing, and is provided with an enlarged upward extension d', which affords the
bearings for the cross head D, and the flaring upper end of which unites with
the inward flange of the lower section a.
The shell E', herein called the piston carrier, is formed in one piece with or rigidly
connected with the cross head D, and at its upper end is formed in one piece with or
rigidly connected with the piston F, which is tightly packed and reciprocates in the
intermediate pump chamber f.
1
The head of the piston F is conical and is perforated to admit the lower end of the
hollow piston rod G, which extends upward through a vertical bearing formed in the
flanged plug g which is inserted in an aperture formed in the head f¹ of the inter-
mediate pump chamber. At its upper end the hollow piston rod G is affixed to the
centre of the conical head of the primary piston H, which is an inverted cup piston
composed of the conical head H', secured at its periphery to the upper end of the
cylinder H2, the lower end of which is open. The primary pump chamber his the
space within the upper section a³ of the casing outside of the stationary cylindrical
shell I, which is closed at the top and open at the bottom and provided at the bottom
with the outward circumferential flange l', and which constitutes the hollow base of
the primary pump chamber.
The space between the outer casing and the vertical wall i, and above the flange I'
of the hollow base of the primary pump chamber is the annular cell for containing
the scaling liquid in which the lower portion of the cylinder H' is immersed.
It will be seen that the intermediate pump chamber is of considerably smaller
diameter than the hollow base of the primary pump chamber. This affords room for
the formation upon the outside of the intermediate pump chamber of the vertical
duct J, connecting at its lower end with the horizontal passage J', formed through the
flange of the intermediate pump chamber and serving as the communication between
the duct J and the exterior duct j, formed on the outside of the casing which through
the aperture, communicates at its upper end with the space within the upper end
of the casing above and around the primary piston.
The duct is connected with the main induction pipe 2, through which air is drawn
from the vessel or chamber which is to be exhausted. The duct J opens at its upper
end in the cell K formed in a portion of the head f¹ of the intermediate pump chamber
and provided with the port k. A sinuous passage is formed in the head f¹ of the
intermediate pump chamber and extends upward through the plug 9 in the hollow
base of the primary chamber. The port 2 of the sinuous passage is at a short
distance below the port k, and at a short distance below the port k³, an aperture is
formed horizontally through the wall of the intermediate puup chamber, the month
of which constitutes the port ³. The vertical slide valve L is provided with a
suitable cavity which enables it when in its higher position to connect the port k
of the cell K with the port 2 of the sinuous passage k¹ and by reason of such
connection when the primary piston is making its upward stroke, air is drawn from
the vessel or chamber which is being exhausted through the induction pipe 2, the
ducts J and J, the cell K, the valve cavity 1, and the sinuous passage k into the

page_text: portion h of the primary pump chamber, which is enclosed by the cup
piston.
At the same time the intermediate piston F is making its upward stroke and is
expelling air from the intermediate pump chamber through the port k³ into the valve
cavity, connecting with the tubular valve stem L'.
The valve L is held against its seat by a spring M, which acts upon a bearing
block M', along the face of which the valve L slides during its reciprocating
movements.
The tubular valve stem is steadied in its movement by the fixed tubular bearing N,
hrough which it passes and the tubular bearing N¹, affixed to the base of the lower
section a, with which the lower end of the valve stem forms a telescopic joint.
During the upward movements of the primary and intermediate pistons, the
discharge piston D is also moving upward and thus enlarging the capacity of the
pump chamber d.
The air expelled from the intermediate pump chamber and
driven down the tubular valve stem L' is afforded an entrance into the pump
chamber d through the port 4 which opens into the tube n¹ at a point just below the
position occupied by the lower end L² of the tubular valve stem when the valve is in
its elevated position.
The vertically reciprocating movements of the valve and valve stem are controlled
by an eccentric on the driving shaft. The eccentric-strap O is connected by the
eccentric arm 0¹ with the pin 0, clamped or otherwise suitably secured to the valve
stem, as illustrated in Figure 1.
The eccentric is so timed with relation to the crank on the primary shaft that at
the proper time the valve L, in its downward movement closes the port k of the cell K
and thus opens communication between the port 2 of the sinuous passage k' and the
port communicating with the intermediate pump chamber. The downward move-
ment of the valve carries the valve cavity below and thus closes the port k³, and
also carries the lower end L2 of the valve stem below, and thus clozes the port k*
leading to the discharging pump chamber d.
It follows that during the downward stroke of the piston systemi air from the
primary pump chamber is driven through the sinuous passage ³, the valve cavity
and port k³, into the intermediate pump chamber, the piston of which is at the
same time descending and thus enlarging the capacity of the intermediate pump
chamber.
The amount of pressure which the primary piston exerts upon the air contained in
the primary pump chamber is determined by the weight of the column of sealing
liquid in which the cylindrical flange of the primary piston is immersed and varies,
of course, with the depth of such immersion.
While the intermediate pump chamber is thus being filled, the air contained in
the discharging pump chamber d is being.compressed by the downward movement of
the discharging piston D¹. When the air in the discharging pump chamber d bas
been compressed to the desired extent, it is discharged therefrom through the check
valve P, into the atmosphere or through the pipe P into another chamber, as the case
may be. The check valve P is a yielding valve which may be held upon its seat
by atmospheric pressure or by any other prescribed degree of pressure which may be
desired.
:
A portion of the inner flange of the lower section a is cut away to afford
clearance for the eccentric rod. The lower portion of the valve stem is contained
within a cell Q, formed by the vertical webs Q1, Q', which unite the lower section
of the casing a to the wall of the pump chamber d, and to its extension d'. The
cell communicates with the interior of the extension d', through the aperture d²,
as shown in Figure 1.
The unoccupied space within the intermediate section a¹ of the casing, also that
within the cell Q, and also that within the extension d' of the pump chamber d, is
filled with oil through the pipe R, for the purpose of lubricating the interior moving
parts of the structure,

page_text: Similarly, the space between the exterior of the intermediate pump chamber and
the interior of the hollow base I of the primary pump chamber constitutes an oil
chamber S, which is filled by oil forced through the pipe S¹, an avenue of escape for
the air displaced by such oil being afforded by a suitable pipe.
The oil thus introduced serves to lubricate the bearing within the plug g of the
hollow piston rod G, to which it has access through the aperture gl, communicating
with the annular recess g² formed in the wall of the aperture in the flanged plug 9,
through which the hollow piston rod G passes.
The intermediate piston F, and the discharge piston D1, are respectively provided
exteriorally with circumferential grooves E1 and D2, which are alternately carried
into the body of lubricating oil with which the interior of the structure is filled, and
carried back again into their respective cylinders.
The oil caught in these grooves is carried into the cylinders and not only lubricates
the pistons but forms liquid packing for them. The pistons F and D) are also in
addition provided with the usual packing rings.
It will of course be understood that the driving shaft where it enters the casing
must be so packed as to prevent the leakage of oil from the interior of the structure.
The space Ú in the lower section a may be employed for the circulation of cooling
or heating liquids, such as may be required to maintain the apparatus at any
prescribed temperature.
With this invention an unusually high vacuum can be produced and maintained by
the expenditure of a comparatively small amount of power.
The primary pump chamber is of comparatively large capacity; its cup piston is
not exposed to atmospheric pressure and by reason of having its lower cylindrical
portion portion immersed in the sealing liquid, operates without leakage and without
appreciable friction.
Great difficulty has been, heretofore, experienced in the production and maintenance
of a high vacuum in a chamber containing any substance which vaporizes in vacuo
and liquefies under atmospheric pressure or under pressure less than atmospheric
pressure.
The vapor of such a substance when drawn into the chamber of an air pump, and
then compressed by the expelling movement of the piston, is liable to condense into a
liquid and to thus become of so little volume as not to be expelled from the pump
chamber. In such case when the piston makes its exhausting movement and thereby
creates a partial vacuum in the pump chamber, the liquid re-vaporizes and so fills
the pump chamber as to leave little or no room for the entrance of a fresh supply of
vapor from the vessel which it is sought to exhaust, and hence of course prevents the
establishment of a high vacuum in such vessels.
In the present invention the occurrence of this difficulty is prevented by effecting
the necessary compression of the exhausted vapor in different pump chambers and by
avoiding any degree of compression in the primary pump chamber which would be
sufficient to cause the vapor therein to liquify.
The positively operated valve M' is so timed that it commences to move downward
from its highest position at the instant after the piston system has concluded the
first half of its upward stroke and immediately after the piston system has arrived
at the end of its upward stroke, the valve M has moved down so far that all the
valve ports are covered. Immediately after the commencement of the downward
stroke of the piston system, the valve ports 2 and 3, begin to be uncovered by the
downwardly moving valve L, thus opening communication by way of the valve
cavity l, through which the air or vapor from the primary pump chambers is both
forced and drawn into the intermediate pump chamber to occupy the space vacated
by the descending piston F. Thus the compressing action of the downwardly moving
primary piston tending to force the air into the intermediate pump chamber is
co-operated with by the exhausting action of the intermediate piston and there is
never any backward rush of the air or vapor from the intermediate pump chamber
into the primary pump chamber.
Similarly, the positively operated valve M' is so timed that it commences to move

page_text: upward from its lowest position at the instant after the piston system has completed
the first half of its downward stroke. Immediately after the conclusion of the
downward stroke of the piston system all the valve ports are again covered but the
instant after the commencement of the upward stroke of the piston system, .com-
munication between the valve ports k and k² begins to be established through the
valve cavity l, and the valve ports and begin to be uncovered, thus opening
communication by way of the valve cavity , and hollow valve stem L', through
which air or vapor from the intermediate pump chamber is both forced and drawn
into the discharging pump chamber to occupy the space therein vacated by the
ascending piston D.
Thus the compressing or expelling action of the upwardly moving intermediate
piston, tending to expel the air or vapor into the discharging pump chamber is
co-operated with by the exhausting action of the discharge pump piston and there
is never any backward rush of air from the discharge pump chamber into the inter-
mediate pump chamber.
In starting the apparatus into operation, the primary cup piston will at each
upward stroke become filled with air or vapour at or near atmospheric pressure, but at
each successive stroke as the process of exhaustion goes on a less and less quantity of
air or vapor will be drawn into the cup piston.
The annular chamber containing the sealing liquid affords an avenue of escape for
any compressed air from the cup piston in excess of the quantity which can be
discharged into the intermediate pump chamber.
Such excess of compressed air depresses the annular body of sealing liquid between
the vertical wall of the hollow base of the primary pump chamber and the inside of.
the cup piston, and escapes under the lower edge of the cup piston, upward through the
body of sealing liquid outside of the cup piston into the space in the upper part
of the casing.
During the upward stroke of the piston, the sealing liquid falls back by its own
gravity to its normal position. As the process of exhaustion goes on, the air or
vapor drawn into the cup piston is more and more rarefied and the extent of
displacement of the sealing liquid is gradually diminished until finally, the weight of
the column of sealing liquid is sufficient to counterbalance the compressed air or
vapor in the cup piston during the downward stroke thereof.
It will of course be understood that the series of pump chambers of relatively
diminishing size, need not necessarily be arranged in vertical axial alignment, and
that if not so arranged the terms "upward" and "downward" applied to the strokes
of the several pistons would not necessarily apply, for the several pumps might be
so arranged that the downward strokes would in all cases be the expelling or
compressing strokes, whereas in the organization shown in the drawings, the expelling
or compressing stroke of the intermediate piston is its upward stroke.
The arrangement in vertical alignment of the several pump chambers and pistons
is advantageous because of the compactness of organization which it permits and
the facility with which the working parts of the structure may be enclosed in a
cylindrical casing.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. A compound vacuum pump consisting essentially of a main induction pipe, a
series of three pump chambers of successively diminishing size, a like series of
reciprocating pistons, suitable passages for keeping all three of the pump chambers
at one end in constant communication with the main induction pipe, suitable valve
ports and ducts and a positively operated valve apparatus for appropriately opening
and closing communication between said pump chambers, and between the main
induction pipe and the end of the largest one of said series of pump chambers,
opposite the end of said chamber which is in constant communication with the main
induction pipe, substantially as and for the purposes herein set forth.

page_text: 2. In a compound vacuum pump, the combination as herein set forth, of a series.
of three pump chambers of successively diminishing size arranged in vertical
alignment and contained within a closed casing, a like series of reciprocating pistons
rigidly connected with each other and moving as a unit, a main induction pipe and a
discharge pipe connected with said casing, suitable passages for keeping all three of
said pump chambers in constant communication with said induction pipe, suitable
valve ports and ducts and a positively operated valve apparatus for appropriately
opening and closing communication between said pump chambers and between the
main induction pipe and the end of the largest one of the said series of pump
chambers opposite the end of said chamber which is in constant. communication with
the main induction pipe.
3. In a compound vacuum pump the combination, as herein set forth, of a primary
pump chamber provided at the bottom with an annular cell adapted for containing a
sealing liquid for a cup piston, an intermediate pump chamber and a discharge pump
chamber, composing a series of three pump chambers of successively diminishing.
size, arranged in vertical axial alignment and contained within a closed casing; a like
series of reciprocating pistous rigidly connected with each other and moving as a unit
and embracing, first, a cup. piston of relatively large diameter, second, an intermediate.
piston of smaller diameter, and third, a discharge piston of still smaller diameter; a
duct connecting the upper part of the first or primary pump chamber with the space
within the casing beneath the intermediate pump chamber, a main induction pipe
communicating with the upper part of the said primary pump chamber; suitable
valve ports and ducts and a positively operated valve apparatus for alternately opening.
and closing communication between the adjoining pump chambers and between the.
interior of the cup piston and the main induction pipe.
4. In a vacuum pump the combination, as herein set forth of the pump chamber h,,.
the reciprocating inverted cup piston H, the annular cell i, adapted to contain a body
of sealing liquid for packing said cup piston, suitable valve ports and ducts and a
positively operated valve apparatus for keeping the space h, inside the cup piston in.
communication with the part of the pump chamber outside the cup piston during
the upward stroke of said cup piston, and for closing such communication and opening
an induction passage for the discharge of air or vapour from the space within the
cup piston during the downward. stroke thereof.
5. In a vacuum pump the combination, as herein set forth, of the pump chamber h, h,
the reciprocating inverted cup piston H, the annular cell ', adapted to contain a body
of sealing liquid for packing said cup piston; suitable valve ports and ducts and a,
positively operated valve apparatus for keeping the space h, inside the cup piston in
communication with the main induction pipe 72, and with the part of the pump.
chamber outside the cup piston during the upward stroke of said cup piston, and for
closing such communication and opening a passage for the discharge of air or vapor
from the space h, within the cup piston during the downward stroke thereof.
6. In a vacuum pump the combination, as herein set forth of a primary pump
chamber of relatively large size; the reciprocating inverted cup piston H, the annular
cell, at the bottom of said primary pump chamber, adapted to contain a sealing
liquid for packing said cup piston; the pump chamber f, of smaller diameter than
the said cup piston; and the piston F reciprocating in said chamber f; suitable valve
ports and ducts, and positively operated valve apparatus for keeping the interior of
the cup piston H in communication with said pump chamber f, only during the com-
pressing stroke of the piston H, and the exhausting stroke of the piston F, and for
keeping the interior of the cup piston H in communication with the main induction
pipe j³, and at the same time keeping open the passage through which the contents of
the pump chamber are discharged during the exhausting stroke of the piston H,
and the compressing stroke of the piston F.
7. The combination, as herein set forth, of the reciprocating inverted cup piston H,
the primary pump chamber provided with the hollow base I, the outer side of which
constitutes the inner wall of the annular cell ; the pump chamber f, extending
upward into the hollow base 1, and provided near the top with the aperture k³ ; and

page_text: suitable valve ports and ducts and positively operated valve apparatus, as and for the
purposes described.
8. The combination, as herein set forth, of the primary pump chamber, the recipro-
cating inverted cup piston H, packed by the immersion of its lower edge in a body of
sealing liquid contained in the annular cell i¹; the intermediate pump chamber f, and
its piston F, of smaller diameter than the said cup piston; the discharge pump
chamber d, and its piston D1, respectively of smaller diameter than the pump chamber ƒ,
and piston F, the check valve P, adapted to yield to a prescribed internal pressure
and to thus permit the discharge of air from the discharge pump chamber d; suitable
valve ports and ducts and positively operated valve apparatus for keeping open com-
munication between the interior of the cup piston H, and the main induction pipe 2,
and between the pump chamber f, and the discharge pump chamber d, only during
the upward stroke of the piston system, and for keeping open the communication
between the interior of the cup piston H, and the pump chamber f, and also keeping
the communication between the pump chamber f, and the pump chamber d, closed
during the downward stroke of the piston system.
9. The combination, as herein set forth, of the hollow piston rod G; the cup
piston H, and the intermediate piston F, for the purpose of keeping the upper
portion h, of the primary pump chamber in communication with the interior of
the casing below the piston F.
10. The combination, as herein shown and described, of the middle section a¹ of
the casing for containing a body of sealing and lubricating liquid, the extension d of
the discharge pump chamber opening at its upper end into the said middle section,
and the intermediate pump chamber f, opening at its lower end into the said middle
section, and the pistons Di and F, respectively provided exteriorly with the circum-
ferential grooves D2 and F'.
11. The combination, as herein shown and described, of the hollow base I, of the
primary pump chamber and the exteriorly flanged intermediate pump chamber f
contained within the said hollow base I, the oil supply pipe S, and the air escape
pipe S2, as and for the purposes set forth.
12. The combination of the intermediate pump chamber f, provided with the
aperture 3, the discharge pump chamber d, and the passage k, with the hollow valve
stem L, for serving as the duct of communication between the said aperture k³, and
the said passage k, substantially as and for the purpose set forth.
13. The piston carrier E, and the pistons D, H, and F connected to said carrier
and arranged in vertical axial alignment, in combination with the driving crank
disc B³, and the pitman C, projecting into the interior of the piston carrier E, as
shown and described.
Dated this 28th day of April 1890
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.