Improvements in Separators.
Year: 1897

page_text: Date of Application, 10th May, 1897
Complete Specification Left, 25th Jan., 1898-Accepted, 5th Mar., 1898
Improvements in Separators.
I, THOR RAGNAR TORNERHIELM, of Skofde, Sweden, Civil Engineer, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to provide an improved centrifugal separator for
separating the cream from milk or the like, the capacity and effect of which will be
much higher than that of the separators hitherto known.
The invention consists, briefly speaking, in providing walls inside the separator
vessel which walls are so arranged that the mass that is to be separated, will be
divided into thin layers in such a manner that the paths of the particles when
moving towards the centre or circumference will be spirals, in relation to the vessel.
In the accompanying drawing Fig. 1 shows a vertical section of a separator vesse]
according to this invention, Fig. 2 shows a horizontal section of the same, and Fig. 3
shows the shape of the wall, when rolled out; Figs. 4, 5 and 6 and Fig. 7, 8 and 9.
show similar views of different modifications; Figs. 10 and 11 show vertical and
horizontal sections of another modification and Figs 12 and 13 similar views of
further modification still.
Referring to the drawing in which similar letters of reference indicate the same
or corresponding parts in all figures, a represents a plate which has been wound
as a spiral and inserted in a separator vessel b with packing c preferably a top or
bottom or both to keep the different spirals apart as well as to cause the mass to
move alongside the spiral without passing the bottom or top edge of the plate. The
dividing wall may be vertical as shown in Figs. 1; 10 and 12 or somewhat inclined
as shown in Figs. 4 and 7, by rolling together plates of the shapes shown in
Figs. 3, 6 and 9.
The modification shown in Figs. 10 and 11 consists in using several cylindrical
ring-shaped walls with an opening in one side, one end being bent outward and the
other bent inward and rings of different sizes being placed concentrically inside
other rings with their openings diametrically opposite, or nearly so, so that the
path of the particles of the milk in relation to the vessel will practically be spirals.
The modification shown in Figs. 12 and 13 is the same as the one just above
mentioned with the exception that the openings in the different rings are opposite
each other and the outwardly bent end of each ring has been joined to the inwardly
bent end of the next ring so that the whole is practically a spiral. The invention
may of course be carried out in other different ways well understood by any person
skilled in the art to which it appertains.
The effect and working of a separator according to this invention is obvious.
The milk or other material being poured into the rotating vessel at or near the
centre the particles will by centrifugal force be forced outward towards the periphery
of the vessel. The milk particles being the heavier will be separated from the
cream particles as soon as they arrive so far towards the periphery that the force
acting on them is strong enough for the purpose. The milk particles will continue
to move towards the periphery and in so doing will continually meet the cream

page_text: particles and be hindered in their movement until they reach the inside of the
spiral division wall which they will thereupon follow without being hindered until
they arrive at the periphery. The particles of cream will be forced to return
towards the centre and as soon as they come to follow the outside of the division
wall will meet with less resistance from the particles of milk than is the case in
separators of hitherto 'known construction.
"
The division wall or walls may for cleaning be removable and may also be
adapted so as to be easily taken apart or unrolled while being cleaned.
Datad his 10th da
SM1007
HERBERT HADDAN & CO.,
Agents to Applicant,
18, Buckingham Street, Strand, London.
improvements in Separators. 1:
I, THOR RAGNAR TORNÉRHIELM, Civil Engineer, of Skofde, Sweden, 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:-
The object of this invention is to provide an improved centrifugal separator for
separating the cream from milk or the like, the capacity and effect of which will
be much higher than that of the separators hitherto known.
The invention consists, briefly speaking, in providing walls inside the separator
vessel which walls are so arranged that the mass that is to be separated, will be
divided into thin layers in such manner that the paths of the particles when moving
towards the centre or circumference will be spirals, in relation to the vessel.
In the drawing filed with my Provisional Specification Fig. 1 shows a vertical
section of a separator vessel according to this invention, Fig. 2 shows a horizontal
section of the same, and Fig. 3 shows the shape of the wall, when rolled out;
Figs. 4, 5 and 6 and Figs. 7, 8 and 9 show similar views of different modifications;
Figs. 10 and 11 show vertical and horizontal sections of another modification and
Figs. 12 and 13 similar views of further modification still.
Referring to the said drawing in which similar letters of reference indicate the
same or corresponding parts in all the figures, a represents a plate which has been
wound as a spiral and inserted in the separator vessel b with packing e preferably
at top or bottom or both to keep the different spirals apart as well as to cause the
mass to move alongside the spiral without passing the bottom or top edge of the
plate. The dividing wall may be vertical as shown in Figs. 1, 10 and 12 or
somewhat inclined as shown in Figs. 4 and 7, by rolling together plates of the shapes
shown in Figs. 3, 6 and 9.
The modification shown in Figs. 10 and 11 consists in using several cylindrical
shaped walls with an opening in one side, one end being bent outward and the
other bent inward and rings of different sizes being placed concentrically inside
other rings with their openings diametrically opposite, or nearly so, so that the
path of the particles of the milk in relation to the vessel will practically be spirals.
The modification shown in Figs. 12 and 13 is the same as the 'one just above
mentioned with the exception that the openings in the different rings are opposite
each other and the outwardly bent end of each ring has been joined to the
inwardly bent end of the next ring so that the whole is practically a spiral. The
invention may of course be carried out in other different ways well understood by
any person skilled in the art to which it appertains.
The effect and working of a separator according to this invention is obvious.

page_text: The milk or other material being poured into the rotating vessel at or near the
centre the particles will by centrifugal force be forced outward towards the
periphery of the vessel. The milk particles being the heavier will be separated from
the cream particles as soon as they arrive so far towards the periphery that the
force acting on them is strong enough for the purpose. The milk particles will
continue to move towards the periphery and in so doing will continually meet
the cream particles and be hindered in their movement until they reach the inside
of the spiral division wall which they will thereupon follow without being hindered
until they arrive at the periphery. The particles of cream will be forced to return
towards the centre and as soon as they come to follow the outside of the division
wall will meet with less resistance from the particles of milk than is the case in
separators of hitherto known construction.
The division wall or walls may for cleaning be removable and may also be adapted
so as to be easily taken apart or unrolled while being cleaned.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is :-
1. The combination with a centrifugal separator vessel, of one or more division
walls inside the said vessel in such a manner that the paths of the mass in relation
to the vessel will be spirals, for the purpose set forth.
2. The combination with a centrifugal separator vessel of one or more removable
division walls placed inside said vessel in such a manner that the mass to be
separated will form and move in a spiral or spirals in relation to the vessel, or
practically, for the purpose set forth.
3. The combination with a centrifugal separator vessel, of a rolled plate
provided with packing for keeping the different layers apart and for preventing the
mass from passing the edge, substantially as and for tlie purpose set forth.
Dated this 25th day of January 1898.
HERBERT HADDAN & CO.,
Agents to Applicant,
18, Buckingham Street, Strand, London.