Improvements in Milk Cooling Apparatus.
Year: 1899

page_text: Date of Application, 4th Mar., 1899
Complete Specification Left, 9th Nov., 1899-Accepted, 30th Dec., 1899
PROVISIONAL SPECIFICATION.
Improvements in Milk Cooling Apparatus.
A communication by EMANUEL MEYER, of Zürich, in the Republic of
Switzerland.
I, GEORGE CECIL DYMOND, M.Inst.M.E., of the Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in
the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of Middlesex, Patent Agent,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object a milk cooling apparatus, which, as com-
pared with the apparatuses for cooling milk hitherto employed, is characterised
by a simple and yet practical construction enabling a thoroughly even cooling
of the milk to be obtained with an easy control and regulation of the cooling
itself.
In this arrangement, a number of double walled milk cans or containers are
employed, the space between the double walls serving to receive a suitable
cooling or refrigerating medium and each space or chamber being provided with
a supply- and draw off-pipe for the cooling medium for the purpose of easily
filling and emptying the said spaces or chambers.
The discharge pipe itself is separate for each vessel, whilst the feed- or
supply-pipes of all the vessels are connected by means of a single pipe with a
reservoir for the cooling medium.
In order to obtain given temperature, the quantity of the cooling medium
flowing through the space between the double walls, is regulated.
One form of construction of such a milk cooling apparatus is shown as an
example in the accompanying drawings,
Figure 1 being a front view of a milk container.
Figure 2 a vertical cross section of the same.
Figure 3 a plan view of the same.
Figure 4 a detail view.
Figure 5 an elevation of an apparatus with four milk containers.
Figure 6 a plan view of Figure 5.
The milk vessels 1 of the apparatus are made with double walls in such a
way that an outer wall 4 with a bottom 5 stands at a certain distance from the
inner wall 2 and bottom 3. These milk containers are of flat, rectangular
longitudinal, section, so that a rapid cooling of the milk contained in the
vessels, can be obtained from both longitudinal sides 6, as these walls 6 afford
a great cooling surface and the distance between the two is comparatively
small. The space between the outer and inner walls of the vessel serves for
receiving a cooling medium for which a supply- and draw-off pipe is arranged
on each receptacle.
These pipes are formed by pipes 7 and 8 which are screwed on nozzles

page_text: arranged at suitable places on the wall 4. It is preferable to arrange the
draw-off pipe 8 pretty near the upper edge of the vessel, whilst the supply
pipe 7 is arranged near the bottom 5.
The draw off pipes 8 are arranged separately for each vessel and are each
provided with a regulating tap 9 while the supply pipes 7, Figures 5 and 6,
of the various vessels are connected with a reservoir 11 by means of a single
pipe 10, and each provided with a tap 12 similarly to the draw-off-pipes 8 in
order to regulate the supply of the cooling medium. Of course in order to
regulate the quantity of the cooling medium passing through each vessel,
use must first be made of these last named taps 12 and the other taps 9 held
in reserve.
The reservoir 11 which is intended for receiving the cooling medium is formed
of a box which is provided near its upper edge with a supply pipe 14, capable
of being regulated by a tap 13 and opposite this supply pipe with a discharge
pipe 15. The latter serves for carrying off the cooling medium in the case
of any stoppage of the draw off pipe. The draw off pipe 10 is connected with
the bottom of the reservoir 11 and there are provided on the right and left
of the same two further pipes, 16 and 17 having for their object to convey
the cooling medium to different places, for instance, for washing butter or
the like.
The quantity of the cooling medium passing from the reservoir 11 into the
pipe 10 may be regulated by means of a tap 40, and in order to retain any
impurities or clots or the like contained in the cooling medium, removable
sieves or strainers are arranged over the mouths of the pipes 10, 16 and 17.
The front wall of the reservoir is provided with a water gauge glass 18 and
a thermometer 19, by means of which the height of the liquid and the tem-
perature of the cooling medium in the reservoir may be ascertained at any
time. From the water gauge glass 18, it may be seen whether the inflow of
the cooling medium has ceased, or the discharge pipe 15 is stopped up.
The vessels 1 lie between angle irons or corner frames 20 which are con-
nected one with another by cross-bolts 22 and cross-pieces 23, and the continua-
tions of which corner frames are formed into feet 21. By this means, it is
possible to place the vessel any where at any desired spot, without specially
mounting the same, or without a separate support, that is to say, the apparatus
may be very rapidly and easily put up or taken down and conveyed to another
place.
Between these feet 21, there is arranged a discharge pipe 24 for the cooled
milk, which may be closed by means of a tap 25. Over the mouth of this pipe
inside the milk-can there is a movable sieve 26 which has for its object to
retain the cream.
This sieve 26 is fixed in a conical ring 27 which has its seat in the bottom
piece 28 arranged between the floors 3 and 5 (Figure 4) and which is provided
with a stirrup or cross piece 29 having an eye in which a wire 30 extending to
the top is engaged in order to allow of the withdrawal of the conical ring
with the sieve.
The tap 25 is provided with a fixing device 31, Figure 1, which allows of
the cock plug being adjusted and fixed in various positions.
This fixing device 31 has a lever 32 mounted on the cock plug, on which a
drawbar 33, having a handle 34 is pivoted, said drawbar being provided with
notches 35, by means of which, the drawbar can be fixed in various positions
on a cross bolt 32.
For the purpose of discharging the chamber between the double walls con-
taining the cooling medium, a discharge tap 36 is arranged on the bottom 5.
The cover 37 for each milk container has an opening at top which is covered
by a plate 38, thus forming lateral openings 39, through which air can enter
the chamber containing the milk.
The walls of the milk container are made of sheet copper, sheet zinc or the

page_text: like, but preferably of enamelled sheet iron, in the latter case the vessel is
more easily and conveniently kept clean.
Water which may be cooled by the action of ice
the cooling medium.
preferably employed as
By the arrangement herein before described, an even distribution of the
cooling action in the various vessels is obtained, as they are connected by a
single pipe with the reservoir for the cooling medium, and the temperature of
the cooling medium is easily controlled as for this object it is only necessary
to read off the temperature indicated by the thermometer on the reservoir. The
desired temperature in the containers may be attained by regulating the quantity
of the cooling medium flowing through the double walls; this regulating in
a convenient and precise manner is rendered possible by means of the many
taps shown in this arrangement.
The arrangement may also be such that the milk vessels, instead of being all
on one side of the reservoir may be arranged half on one side and half on
the other.
1
1 1
ሱ
1
1000
Improvements in Milk Cooling Apparatus.
A communication by EMANUEL MEYER, of 74, Waffenplatz Strasse, Zürich, in
the Republic of Switzerland, Merchant.
I, GEORGE CECIL DYMOND, M.I.M.E., of the Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in
the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of Middlesex, Patent Agent,
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 has for its object a milk cooling apparatus, which, as com-
pared with the apparatuses for cooling milk hitherto employed, is characterised
by a simple and yet practical construction, enabling a thoroughly even cooling
of the milk to be obtained with an easy control and regulation of the cooling
itself.
In this arrangement, a number of double walled milk cans or containers are
employed, the space between the double walls serving to receive a suitable
cooling or refrigerating medium and each space or chamber being provided with
a supply- and draw off-pipe for the cooling medium for the purpose of easily
filling and emptying the said spaces or chambers.
The discharge pipe itself is separate for each vessel, whilst the feed- or
supply-pipes of all the vessels are connected by means of a single pipe with a
reservoir for the cooling medium.
In order to obtain a given temperature, the quantity of the cooling medium
flowing through the space between the double walls, is regulated.
One form of construction of such a milk cooling apparatus is shown as an
example in the drawings accompanying the Provisional Specification.
Figure 1 being a front view of a milk container.
Figure 2 a vertical cross section of the same.

page_text: Figure auctan
Figure 5 an elevation of an apparatus with four milk containers.
Figure 6 a plan view of Figure 5.
The milk vessels 1 the apparatus are made with double walls in such a
way that an outer wall 4 with a bottom 5 stands at a certain distance from the
inner wall 2 and bottom 3. These milk containers are of flat, rectangular
longitudinal section, so that a rapid cooling of the milk contained in the
vessels, can be obtained from both longitudinal sides 6, as these walls. 6 afford
a great cooling surface and the distance between the two is comparatively
small. The space between the outer and inner walls of the vessel serves for
receiving a cooling medium for which a supply- and draw-off pipe is arranged
on each receptacle.
These pipes are formed by pipes 7 and 8 which are screwed on nozzles
arranged at suitable places on the wall 4. It is preferable to arrange the
draw-off pipe 8 pretty near the upper edge of the vessel, whilst the supply
pipe 7 is arranged near the bottom 5.
The draw off pipes 8 are arranged separately for each vessel and are each
provided with a regulating tap 9 while the supply pipes 7, Figures 5 and 6,
of the various vessels are connected with a reservoir. 11 by means of a single
pipe 10, and each provided with a tap 12 similarly to the draw-off-pipes 8 in
order to regulate the supply of the cooling medium. Of course in order to
regulate the quantity of the cooling medium passing through each vessel,
use must first be made of these last named taps 12 and the other taps 9 held
in reserve.
The reservoir 11 which is intended for receiving the cooling medium is formed
of a box which is provided near its upper edge with a supply pipe 14, capable
of being regulated by a tap 13 and opposite this supply pipe with a discharge
pipe 15. The latter serves for carrying off the cooling medium in the case
of any stoppage of the draw off pipe. The draw off pipe 10 is connected with
the bottom of the reservoir 11 and there are provided on the right and left
of the same two further pipes, 16 and 17 having for their object to convey
the cooling medium to different places, for instance, for washing butter or
the like.
The quantity of the cooling medium passing from the reservoir 11 into the
pipe 10 may be regulated by means of a tap 40, and in. order to retain any
impurities or clots or the like contained in the cooling medium, removable
sieves or strainers are arranged over the mouths of the pipes 10, 16 and 17.
The front wall of the reservoir is provided with a water gauge glass 18 and
a thermometer 19, by means of which the height of the liquid and the tem-
perature of the cooling medium in the reservoir may be ascertained at any
time. From the water gauge glass 18, it may be seen whether the inflow of
the cooling medium has ceased, or the discharge pipe 15 is stopped up.
The vessels 1 lie between angle irons or corner frames 20 which are con-
nected one with another by cross-bolts 22 and cross-pieces 23, and the continua-
tions of which corr r frames are formed into feet 21. By this means, it is
possible to place the vessel any where at any desired spot, without specially
mounting th same, or without separate support, that is to say, the apparatus
may be very rapidly and easily put up or taken down and conveyed to another
place.
Between these feet 21, there is arranged a discharge pipe 24 for the cooled
milk, which may be closed by means of a tap 25. Over the mouth of this pipe
inside the milk-can there is a movable sieve 26 which has for its object to
retain the cream.
This sieve 26 is fixed in a conical ring 27 which has its seat in the bottom
piece 28 arranged between the floors 3 and 5 (Figure 4) and which is provided
with a stirrup or cross piece 29 having an eye in which a wire 30 extending to

page_text: the top is engaged in order to allow of the withdrawal of the conical ring
with the sieve.
The tap 25 is provided with a fixing device 31, Figure 1, which allows of
the cock plug being adjusted and fixed in various positions.
This fixing device 31 has a lever 32 mounted on the cock plug, on which a
drawbar 33, having a handle 34 is pivoted, said drawbar being provided with
notches 35, by means of which, the drawbar can be fixed in various positions
on a cross bolt 32.
For the purpose of discharging the chamber between the double walls con-
taining the cooling medium, a discharge tap 36 is arranged on the bottom 5.
The cover 37 for each milk container has an opening at top which is covered
by a plate 38, thus forming lateral openings 39, through which air can enter
the chamber containing the milk.
The walls of the milk container are made of sheet copper, sheet zinc or the
like, but preferably of enamelled sheet iron, in the latter case the vessel is
more easily and conveniently kept clean.
Water which may be cooled by the action of ice is preferably employed as
the cooling medium.
By the arrangement herein before described, an even distribution of the
cooling action in the various vessels is obtained, as they are connected by a
single pipe with the reservoir for the cooling medium, and the temperature of
the cooling medium is easily controlled as for this object it is only necessary
to read off the temperature indicated by the thermometer on the reservoir. The
desired temperature in the containers may be attained by regulating the quantity
of the cooling medium flowing through the double walls; this regulating in
a convenient and. precise manner is rendered possible by means of the many
taps shown in this arrangement.
The arrangement may also be such that the milk vessels, instead of being all
on one side of the reservoir may be arranged half on one side and half on
the other.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is:-
1. A milk cooling apparatus having a plurality of double walled milk cooling
vessels characterized not only by the carrying off of the cooling medium from
the space between the outer and inner wall of each of the vessels taking place
separately, but also by the drawing off of the milk from the inner vessel taking
place separately for each of these milk containers, with the object of allowing
each kind of milk to be suitably treated in each vessel by itself separately
and of thus obtaining a great scope for variety in the use of the milk cooling
apparatus, substantially as herein before set forth.
2. In a milk cooling apparatus such as described, a double walled milk cooling
vessel characterized by the angle irons forming the lateral corner stiffenings of
the casing being continued downwardly in such a way as to form the feet of
the milk vessel, substantially as described.
3. A milk-cooling apparatus comprising a cooling vessol, a support therefor,
a milk vessel smaller than and supported within said cooling vessel both pro-
vided with an opening in their bottoms, a union-piece forming a seat for the
milk vessel and having a sleeve extension projecting through thcsopening in the
bottom of the cooling vessel, the bore of said union piece being a register with
the opening in the bottom of the milk vessel, and a discharge-pipe screwed to
the sleeve extension of the union-piece, for the purpose set forth.
4. A milk-cooling apparatus comprising a plurality of cooling vessels, a milk
vessel smaller than and suspended in each of said cooling vessels, means for,
closing the upper end of both vessels and for admitting air to the milk vessels,
a milk-discharge pipe extending from the bottom of a milk vessel through its

page_text: cooling vessel, and a discharge pipe near the upper end of each of said cooling
vessels; in combination with a reservoir for the cooling agent, a supply-main
connected with the reservoir at or near its bottom, distributing-pipes leading
from said supply-main, connected with the cooling vessels near their bottom,
and means for regulating the flow of liquid from the reservoir to the cooling
vessels, substantially as and for the purpose set forth.
5. A. milk-cooling apparatus, comprising a plurality of portable coolers, each
comprising a stand, a cooling vessel supported therefrom, a milk vessel smaller
than and supported by said cooling vessel, a discharge-pipe for milk extending
through the bottom of the cooling vessel and communicating with the milk
vessel through a joint which forms a scat for the bottom of said milk vessel,
and a refrigerant discharge or overflow pipe near the upper end of each cooling
vessel, in combination with a refrigerant-reservoir having level and temperature
indicators, supply and overflow pipes, and one or more distributing-pipes, one
of said pipes provided with branches connected with the cooling vessels near
the bottom thereof, and means for regulating the flow of refrigerant through
said distributing-pipe, substantially as and for the purpose set forth.
Dated this 8th day of November 1809
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.