Improvements in Centrifugal Machines for Separating Fluids of Different Densities.
Year: 1895

page_text: Date of Application, 11th Apr., 1895
Complete Specification Left, 21st May, 1895-Accepted, 22nd June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Centrifugal Machines for Separating Fluids of
Different Densities.
I, JOHN LAIDLAW, of the Firm of Watson Laidlaw & Co. of 98 Dundas Street,
in the County of the City of Glasgow, North Britain, Engineer, do hereby declare
the nature of this invention to be as follows:-
This invention relates to improvements in apparatus for separating fluids of
different specific gravities by centrifugal action, and is more particularly applicable
to the separation of cream from milk.
The invention consists in combining two or more separate drums in one machine
in the following manner, the number so employed depending on the quantity of
liquid to be treated.
In carrying out my invention I provide a central shaft driven by hand gear, or
a belt steam motor or electro motor, or other convenient means, and from this
shaft I drive by toothed wheel gearing or otherwise two or more separating drums
of small diameter. The liquid to be separated is fed into each of the drums from
one common regulating chamber, and the separated liquids are discharged from
each drum into an annular receiver common to the several drums from which they
are drawn off.
In centrifugal separating machines it is found that greater efficiency is obtained
by using separating drums of small diameter. I therefore use a drum of small
diameter, and in order to obtain a machine of sufficient capacity I combine several
drums of the same small diameter in the manner above described, and thus obtain
a machine of great efficiency and of any required capacity.
This arrangement has also the advantage of using only one size of drum instead
of different sizes of drums for machines of different capacity, which is of considerable
importance in designing and constructing such machines.
Dated this 10th day of April 1895.
BOTTOMLEY & LIDDLE,
154 St. Vincent Street, Glasgow, Applicant's Agents.
Improvements in Centrifugal Machines for Separating Fluids of
Different Densities.
I, JOHN LAIDLAW, of the Firm of Watson Laidlaw & Company, of 98 Dundas
Street, South, in the County of the City of Glasgow, North Britain, Engineers,
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 improvements in apparatus for separating fluids of
different specific gravities by centrifugal action, and is more particularly applicable
to the separation of cream from milk.

page_text: The invention consists in combining two or more separate drums in one machine
in the following manner, the number so employed depending on the quantity of
liquid to be treated.
In order that my invention may be properly understood and readily carried into
effect have hereunto appended an explanatory sheet of drawings which I will
now describe.
Figure is a vertical section of the apparatus.
Figure 2 is a plan of the same.
In carrying out my invention I provide a central shaft a driven by hand gear
belt steam motor, or electro motor, or other convenient means, and from this shaft
I drive by toothed wheel gearing or otherwise two or more separating drums d of
small diameter. The liquid to be separated is fed into each of the drums from
one common regulating chamber e, and the separated liquids are discharged from
each drum into an, annular receiver common to the several drums from which they
are drawn off.
In centrifugal separating machines it is found that greater efficiency is obtained
by using separating drums of small diameter. I therefore use a drum of small
diameter, and in order to obtain a machine of sufficient capacity I combine several
drums of the same small diameter in the manner above described, and thus obtain
a machine of great efficiency and of any required capacity.
This arrangement has also the advantage of using only one size of drum instead
of different sizes of drums for machines of different capacity, which is of
considerable importance in designing and constructing such machines.
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 :-
In centrifugal machines for separating fluids of different densities, the combination
of two or more separating drums driven from a central shaft to form a machine of
any required capacity.
Dated this 20th day of May 1895.
BOTTOMLEY & LIDDLE,
154 St. Vincent Street, Glasgow, Applicant's Agents.