Cream therefrom.
Year: 1886

page_text: Cream therefrom.
I, FREDERICK ALFRED THYSS, of the firm of Thyes, Lockyer & Co, of
25 Australian Avenue in the City of London Merchant, 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 relates to apparatus of the class described in the Specification
of Letters Patent dated January 24th AD. 1884 Nº 2029, for cooling milk and
separating cream therefrom.
The said invention is illustrated in the accompanying drawing in which,
Figure 1 is a plan of the improved apparatus.
Figure 2 is a sectional side elevation of the same, and
Figure 3 is a vertical section of the separator drawn to an enlarged scale and
showing a slight modification.
Figure 4 is a plan of a cover for covering the milk pan, and
Figure 5 is a transverse section of the same.
The improved apparatus consists essentially of the milk basin or pan A having a
double wall for cooling the milk by means of water or air at will; the device B for
separating the milk and cream; the device D for introducing water into the double
bottom; the channel E for receiving the water discharged from the said double
bottom, and the water reservoir F.
The principal feature of the said invention consists in the novel' means employed
for separating the milk and cream,
For this purpose a recess or well G is formed' at one end of the pan A. From
the bottom of this well projects a small hollow cylinder H The separator B,
which consists of a pipe b-having a series of openings or perforations Lat a suitable
Prine R71

page_text: •
height for the outflow of the milk, and provided with a shield b¹ over the said
openings, is fitted at its lower end upon the upper projecting portion of the
cylinder H and forms a continuation thereof.
The perforations L are preferably formed by placing a piece of wire gauze Z
around the tube b as shown in Figure 3, the sides of the said tube, with the 5
exception of the strips 6' which serve to support the gauze, being cut away at
this part. If desired however the perforations may be formed as shown in
Figure 2.
When the separator B is in position, the stopper I, which is provided with a rod
to facilitate the handling of the stopper, is inserted into the opening K which is 1
made somewhat smaller than the opening at the upper end of the cylinder so as to
form a seat for the said stopper.
328
After the cream has risen from the milk and floats upon the surface of the latter,
the stopper I, which is composed of india-rubber or other suitable material, is lifted.
The milk, by reason of the particular arrangement of the exterior shield b' of the
separator B, then flows through the well G in the direction of the arrows depositing
therein any impurities which it may contain and then, ascends between the said
shield and the pipe b and flows out through the perforations L. As the height of
the perforations L corresponds with the quantity of cream obtained, the latter
cannot flow out until after the' device B has been entirely removed. When however
the said separator is removed the cream flows directly into the cylinder H.
A little skim-milk level with the top of the small cylinder H, remains in the
well G after the discharge of the cream. This milk can be removed, with the
impurities which may be contained therein, by tilting the pan as shown by dotted
.-lines in Figure 2.
'
The rear part of the pan rests upon the support N and its front part is carried
upon a transverse axis M, which is attached to the bottom of the pan and which
has its bearing in the support C.
2 By reason of this arrangement the pan can be easily tilted, which is of great
convenience for removing the skim-milk remaining in the well Gas before described;
and also for cleaning the pan, so that in each of these operations the said pan can
remain upon its support.
In order to cool the milk by means of air, which cooling will be sufficient in
winter, a small opening O is formed at the front part of the pan as shown in
Figure 2, and an outlet R is formed at the rear end. In this case a natural
circulation is produced owing to the milk warming the air between the double
walls.
•
When the cooling is effected by water the latter enters the funnel P through the
cock D and is thence conducted through a tube Q which is in the double bottom
of the pan, to the wall of the well G, against which it runs and whereby it is
equally divided towards the right and left. The water thence returns and flows out
at R into the channel E. In this case a plug or cork is inserted in the opening O.
The support C carries at its rear part beyond the pan, the pipe S through which
the refrigerating water passes into the apparatus. The channel E into which the
water is discharged, is attached by means of screws to the said support C but it
"may be connected to any suitable plate or table.
.
2
'If several pans are to be used together, which is ordinarily the case, it is only
necessary to prolong the water pipe S which supplies the apparatus and the trough
for removing the waste water.
In Figures 4 and 5 I show a cover which I generally employ in connection with
'my improved apparatus. This cover is adapted to fit over the milk pan and is
provided with apertures m at the top in order to permit the circulation of air and
the escape of any exhalations from the milk.

page_text: 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 :-
First. The improved apparatus for cooling milk and separating cream therefrom,
consisting of the parts constructed and combined substantially as described with
reference to the accompanying drawing, and operating as set forth.
Second. The combination with a milk pan having a well, through the bottom of
which passes a pipe or hollow cylinder, of a tube adapted to fit on or form a con-
tinuation of the said cylinder and having a series of holes or perforations covered
by a shield, all substantially as, and for the purpose specified.
Dand thin 7th of T1000
HASELTINE, LAKE & Co.,
Agents for the Applicant.