An Improved Process of and Apparatus for Filtering or Straining Liquids.
Year: 1896

page_text: Date of Application, 9th Apr., 1896
Complete Specification Left, &th Jan., 1897-Accepted, 8th May, 1897
PROVISIONAL SPECIFICATION.
An Improved Process of and Apparatus for Filtering or Straining
Liquids.
LUCAS CLASSEY Limerick Junction Butter Merchant, do hereby declare the nature
of this invention to be as follows:-
A revolving drum or basket which may be either vertical, horizontal, or set at angle
and wholly or partly made of perforated or woven metal or other suitable substance.
This drum or basket may be lined with felt, cloth, other woven material, paper or
any known filtrant or straining medium or may be made with the circular part of the
drum or basket either double or containing one or more inner circles or bodies or
may contain one or more inner drums or baskets the spaces between the circles or
bodies or between the drums or haskets may be wholly or partly filled with gravel,
sand, charcoal, paper pulp, fibre or any other known filtrant or straining medium or
combination of same, or with different filtrants or density of filtrants or straining
mediums in the various spaces. The liquids are forced through the filtering or
straining mediums by centrifugal force thereby causing very rapid filtration or
straining.
Dated this 7th day of April 1896.
COMPLETE SPECIFICATION.
An Improved Process of and Apparatus for Filtering or Straining
Liquids.
I, LUCAS CLASSEY, of Limerick Junction, Butter Merchant, do hereby declare
the nature of this invention and in what manner the saine is to be performed to
be particularly described and ascertained in and by the following statement :-
My invention relates to filters or strainers for liquids, and the object is to perform
the operations of filtering or straining with great rapidity. In carrying my invention.
into practice I provide a drum or basket having passed through, and attached to,
it a shaft whose vertical horizontal or inclined axis is coincident with the axis of
the drum or basket. The shaft is supported in suitable bearings and rotated by any
suitable and convenient means. The drum or basket is made wholly or partly of
perforated or woven material or materials or combination of materials, and lined
with felt, cloth, or other woven material, paper or any other filtrants or straining
materials. Instead of having only one wall to the drum or basket, there may also
be an inner wall or inner walls perforated and concentric with each other, and with
the outer perforated wall and the spaces between these walls may be wholly or
partly filled with gravel, sand, charcoal, paper, pulp, fibre, or any other filtrants or
straining materials or combination thereof, or with differert filtrants or straining
materials in the various concentric spaces. On placing the liquid to be filtered in,
and rotating, the drum or basket. the liquid will be driven by centrifugal force

page_text: through the filtering or straining material or materials, thus ensuring a rapid and
thorough filtration or straining of the liquid.
In order that my invention may be more clearly understood, I make reference to
the accompanying drawing which represents a sectional side view. a is the base of
the apparatus, and is surrounded at the top by the rim b. To the under side of a is
attached the banger c supporting the spindle d which passes upwards through the top
of a and terminates in the conical part e, the top of a being prolonged to form the
bearing to support the upper end of the spindle d. To d is attached the bevel
pinion in which gears the bevel wheel attached to one end of the spindle i
running in bearings j and k. At the other end of is the pinion which can be
revolved by the internally toothed wheel m. The wheel m is rotated by the handle o
or by other suitable means, p being the spindle round which m runs. Over e is
placed the filter 9 having the outer perforated wall r and if desired other perforated
walls s, t, and u. The spaces between any two walls may be filled with any suitable
filtering materials, for instance, there may be a ring of felt e and a ring of sand w.
When there are no inner walls, the felt and sand may be sufficient without a wall to
keep up the sand, as the latter will naturally fly out and spread itself over the felt
by centrifugal force, when the filter is rotated. At a all round the inner bottom
corner of a is a sloping piece of metal, under which the felt v beds itself when the
filter is in use and thus prevents the fluid from driving under ". The fluid is fed in
by the opening y and the whole is covered by the outer casing z against which the
fluid strikes when it is thrown out through r, and after striking z it falls on to the
top of a and out through the spout A, or an exit may be provided for it by a down-
ward tending pipe opening into the top of a. The speed of the spindle i may be
regulated by any suitable means, such as by an ordinary strap brake acting on the
pulley B attached to i.
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. The application of centrifugal force to the filtering and straining of liquids,
substantially in the manner described in the above specification, and exemplified in
the accompanying drawing.
2. Filtering and straining liquids by impelling them by centrifugal force through
filtering or straining materials or substances lining the inner surface of a rotating
perforated drum or basket, substantially as described in the above specification, and
exemplified in the accompanying drawing.
3. Filtering and straining liquids by impelling them by centrifugal force through
filtering or straining materials or substances, wholly or partly filling the spaces
between the inner, intermediate, and outer concentric and perforated walls of a
rotating drum or basket, substantially as described in the above specification, and
exemplified in the accompanying drawing.
4. Filtering and straining liquids in the manner and by the means substantially as
described in the above specification, and exemplified in the accompanying drawing.
Dated this 8th day of January 1897.
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents for Applicant.