Improvements in Apparatus for Filtering or Straining Milk, Coffee, and the like.
Year: 1897

page_text: Date of Application, 27th Jan., 1897
Complete Specification Left, 16th Oct., 1897-Accepted, 1st Jan., 1898
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Filtering or Straining Milk, Coffee,
and the like.
I, CHARLES ROBERT WATSON of Dovecot Street, Stockton-on-Tees in the
County of Durham, Dairyman, do hereby declare the nature of this invention
to be as follows:
-
This invention relates to an improved filter for filtering or straining milk to
remove therefrom small or light particles of foreign matter.
In the filtering or straining of liquids containing fine or light suspended
matter or sediment it has been found better to pass it through the strainers in
an upward direction otherwise the finer particles are gradually carried through
the straining material and I have designed a strainer of this description for the
use of dairymen farmers and others which can be set into or upon an ordinary
churn or can to strain the milk as it is poured therein.
I construct the appliance to attach to an ordinary syle or funnel or other
receptacle a passage to carry the milk down therefrom below straining or filtering
material and a suitably shaped vessel to carry the filtering or straining material
preferably fine gauze from which the milk will overflow into an ordinary churn
or other receptacle for the milk.
In carrying out the invention I construct a tapering shaped sleeve or funnel
to fit closely over the lower end of an ordinary syle or funnel. Or an ordinary
union or other form of joint may be employed to attach it to the syle or other
receptacle. Or if desired a funnel shaped vessel or receptacle may be formed
into which the milk may be poured.
Below this I place a vessel over the top of which is stretched a strainer of fine
wire gauze or other suitable material. The wire gauze is attached to a lid or
cover which fits closely and which can be easily removed to cleanse the interior
surface of gauze and remove the sediments collected in the vessel. This vessel
is constructed of as small a capacity as convenient to give a large straining
surface.
The upper part is connected to this vessel by a pipe which enters at or near
the bottom through which the milk flows to the underside of the straining surface.
The upper sleeve forms a secure attachment to the syle or funnel and the whole
appliance is set down into the interior of the milk churn or receptacle the
tapering sides of the syle resting upon its mouth in the usual way.
If desired however the appliance may be fitted with a ring or arms or other
device to rest upon the top of the churn or receptacle.
The appliance may also be made for filtering or straining milk into basins
or other shallow vessels for domestic or dairy use in which case it may be
provided with feet or legs or other supports extending down below or to the
side of the lower. vessel so as to stand over or in the basin or vessel.
Instead of placing the straining vessel below the receiving spout, it may be
placed to one side of it, but I prefer to place the strainer below, to give a slight

page_text: head to the milk to give a certain amount of force or pressure to carry the milk
more quickly through the strainer.
In a slightly modified form the appliance may be adapted to be attached to
the spout of a coffee pot tea pot or other vessel to strain the infusion or decoction
as it is poured therefrom.
I prefer to place the straining or filtering gauze or material in a horizontal
plane, though if desired it may be slightly inclined. If desired one
more layers of gauze may be employed.
two or
In operation the appliance will be removably attached to the bottom of the
ordinary syle or funnel and set into or over the churn or other receptacle the
milk will be poured into the syle in the ordinary way of filling and will pass
down through the pipe or passage and flow from the bottom thereof up through
the gauze or other strainer and over-flowing from the top surface thereof run
down into the churn or receptacle.
Dated this 22nd day of January.
WM. P. THOMPSON & Co.
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Filtering or Straining Milk, Coffee
and the like.
I, CHARLES ROBERT WATSON, of Dovecot Street, Stockton-on-Tees, in the
County of Durham, Dairyman, 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 an improved filter for filtering or straining milk to
remove therefrom small or light particles of foreign matter.
In the filtering or straining of liquids containing fine or light suspended
matter or sediment, it has been found better to pass it through the strainers in
an upward direction, otherwise, the finer particles are gradually carried through
the straining material and I have designed a strainer of this description for the
use of dairymen farmers and others, which can be set into or upon an ordinary
churn or can, to strain the milk as it is poured therein.
The invention will be fully described with reference to the accompanying
drawings.
Fig 1. Side elevation.
Fig 2. Sectional elevation.
Fig 3. Sectional plan.
Fig 4. Sectional plan-partly opened.
Fig 5. Side elevation of that part of the appliance to which the gauze is
affixed.
The scyle or funnel A is of any ordinary shape, size or construction-preferably
with a course wire gauze strainer B fitted in the bottom.
The filtering appliance is constructed with a sleeve C, which fits tightly over
the lower end a of the scyle A to make approximately a watertight joint.
Instead, however, of applying a sleeve C over the lower end of the scyle A
the sleeve C may form part of the scyle or funnel shaped receptacle into which
the milk is poured.
To the sleeve C I attach, by means of a suitable pipe or tube D, a vessel E,
into which the milk can flow from the sleeve C through the pipe or tube D. The
vessel E is preferably placed immediately below the sleeve C, the tube D

page_text: branching from one side, so that the appliance can be set into the mouth of an
ordinary milk carrying churn.
The lower vessel E is made with a lid or cover F, to the upper edges of which
is attached by solder or otherwise, a strainer G, of very fine wire gauze, sufficiently
fine to remove the smallest suspended body from the milk.
The lid or cover F is preferably of the form shown in Fig 5 to fit over the
exterior of the vessel, but it may be of any other suitable shape, and may be
binged at one side, but I prefer at present the construction shown.. The lid or
cover fits closely over the vessel, and can be readily removed to cleanse the
interior surface of the gauze strainer, and remove the sediment collected in the
vessel. Instead of a lid, the gauze may be attached direct to the top edges of
the vessel by solder. Further, instead of the fine wire gauze, hair cloth or other
suitable fine straining or filtering material may be employed.
Over the fine wire gauze strainer is placed a cover or wire netting H or the like,
to support the very fine gauze against the pressure of the milk. In small filters
this may be dispensed with, but for those with a large filtering surface, I find
it very desirable. Below the strainer G I place a squeegee or rubber scraper K,
with a wire or rod passing out through the side of the vessel E, which can be moved
backwards to and fro over the under surface of the strainer G to clear it or
remove curd particles or matter adhering thereto, which fall into the bottom of
the vessel E. The vessel E may also be provided with a tap at the bottom to
drain off the milk and sediment therefrom.
The vessel E is constructed of as small a capacity as convenient to give a
large straining surface, and is connected to the sleeve C or upper part of the
appliance by the pipe or tube D, which enters it at or near the bottom. The
sleeve C forms a secure attachment to the scyle or funnel, and the whole appliance
is set down into the interior of the milk carrying churn or receptacle, the tapering
sides of the scyle resting upon its mouth in the usual way..
If desired, however, the appliance may be fitted with a ring or arms or other
device to rest upon the top of the churn or receptacle.
The appliance may also be made for filtering or straining milk into basins
or other shallow vessels for domestic or dairy use, in which case it may be
provided with feet or legs or other supports, extending down below or to the
side of the lower vessel E, so as to stand over or in the basin or vessel.
Instead of placing the straining vessel below the receiving spout, it may be
placed to one side of it, but I prefer to place the strainer below, to give a slight
head to the milk, to give a certain amount of force or pressure to carry the milk
more quickly through the strainer.
In a slightly modified form the appliance may be adapted to be attached to
the spout of a coffee pot, tea pot, or other vessel, to strain the infusion or decoction
as it is poured therefrom.
I prefer to place the straining or filtering gauze or material in a horizontal
plane, though, if desired, it may be slightly inclined. If desired, one, two, or
more layers of gauze may be employed.
In operation the appliance is removably attached to the bottom of the
crdinary seyle or funnel by the sleeve C, and set into or over the mouth of the
churn or other receptacle; the milk will be poured into the scyle in the ordinary
way of filling, and will pass down through the pipe or tube D, and flow from the
bottom thereof up through the fine gauze or other strainer G, and overflowing
from the top surface thereof, run down into the churn or receptacle.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is.-
1. In an appliance for straining milk or other liquids, the combination of a
sleeve for attaching it to the discharge aperture of an ordinary scyle or other
retaining vessel a vessel connected thereto, by a pipe or tube, into which the

page_text: milk or liquid flows, and a fine strainer of gauze or other material covering the
said vessel through which the milk flows in an upward direction, and overflows
into a churn or other receptacle, substantially as described.
2. An appliance for straining milk (or other liquids) comprising the sleeve C
for attaching to a scyle or other vessel, the vessel E placed at a lower level con-
mected thereto by a tube or pipe, the lid or cover F fitted with a fine gauze
strainer G through which the liquid passes and overflows, and a squeegee for
clearing the underside of the strainer G, with or without a supporting wire H,
substantially as described and shown.
3. An appliance for straining milk to be attached to an ordinary scyle, con-
structed and arranged substantially as described and shown.
Tlated thin 5th day of Ontahan 1007
WM. P. THOMPSON & Co.
Manchester, Liverpool & London, Patent Agents.