Improvements in Strainers or Filters for Milk or other Liquids.
Year: 1889

page_text: Date of Application, 4th Oct., 1889
Complete Specification Left, 5th Aug., 1890-Accepted, 4th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Strainers or Filters for Milk or other Liquids.
WILLIAM MORTON Easter Road Edinburgh Dairyman do hereby declare the nature
of this invention to be as follows:-
.
The object of this invention is to filter or strain milk, and by so doing the sand,
dirt, and other impurities, and foreign matter is abstracted and the milk so filtered
or strained is by this means enabled to be kept sweet and good for a much longer
time than milk not treated so.
For this purpose I have employed the following
To any ordinary or suitable vessel usually kept for containing milk in a dairy is
fixed a stop cock for regulating the supply of unfiltered milk, to this is attached a
connecting pipe leading to the filtering vessel, at the lowest part of this connecting
pipe is fixed a wash out or drain cock, plug, or cap.,
The filtering vessel consists of a conical or other shaped bottom piece, to which the
connecting pipe is fixed, above this are two dish shaped diaphragm plates with a
suitable sized hole in the centre of cach, between these plates & held by them is
placed the filtering material (preferably sponge). Above these plates is the receiver
for the filtered milk, this receiver has an outlet for running off the filtered milk, the
receiver has also a loose cover or lid.
-
But that the invention may be more readily ascertained I have made the accom-
panying drawing sheet No. 1. consisting of Figs. 1 & 2.
In Fig. 1. A is the vessel containing the unfiltered milk, B is the outlet & regulating
cock, C a union nut or other suitable connection to attach the connecting pipe D
to the regulating cock, D is the connecting pipe connecting the receiving & the
filtering vessels together. E is the washout or drain cock, plug, or cap. On the
bottom of the connecting pipe, N is the lower part of the filtering vessel. J & K are
L is the sponge
the two diaphragm dish shaped plates with the hole in the centre.
or other suitable filtering material held between the plates J & K, an india-
rubber ring, or other suitable jointing material is shewn at M making the joint
good of the bottom N, the diaphragm plates J & K, and the upper part F of the
filtering vessel. H is the outlet for the filtered milk. G is the loose cover on the
filtered milk vessel.
Fig. 2. shews another method of jointing the upper & lower parts of the vessel &
the diaphragm plates, by means of a suitable jointing ring M, and thumb screws 0.
I do not confine myself to the precise shape or arrangement, or combinations
shewn on the drawing, the filtering vessel may be made in any convenient shape
or form, and the jointing may be in any suitable way, or the plates may be placed
in the vessel in any way so that they may be readily taken out and cleansed &
replaced.
The chief features of novelty of this invention consist (1) in the fact that after
milk has been passed through this machine it may be kept much longer than if it
were not passed through the machine (2) That the machine being of simple
construction can be manufactured for little cost & can be used by any unskilled
person (3) That it may readily be fixed to any ordinary vessel or tank that is
usually found in dairys for containing milk (4) In the inverted syphon pipe & that
the vessel containing unfiltered milk being at a higher level than the filter the liquid
flows by statical pressure up through the filtering material, so that much of the
sediment falls to the bottom of the syphon pipe before reaching the filtering material,
and not down through the material, so that inuch of the impurity does not adhere to
the filtering material but falls to the bottom of the vessel thus preventing the filtering
material getting so readily charged with impurities.

page_text: APPLICATIONS OF MACHINE.
This machine is designed for filtering milk, but may be used for any other liquid
with equal efficiency.
Dated this 2nd day of Ontahan 1000
COMPLETE SPECIFICATION.
Improvements in Strainers or Filters for Milk or other Liquids.
I, WILLIAM MORTON of Easter Road, Edinburgh, in the County of Lanark,
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 has for object the better filtration of milk or other liquids such as
wine, beer, spirits or other liquids by the use of an improved machine or apparatus
in which sponge is used as a special filtering medium but other suitable filtering
material may be used.
The machinery or apparatus consists of two or more chambers. The first or lower
chamber through which the liquid passes is so arranged as to retain the grit or
heavy foreign matter that may be contained in the liquid under treatment. The
second chamber is for the reception of the filtering material, whether sponge or
otherwise, and is constructed in two parts joined together with face joint, but may
be made in one complete chamber or part or any other convenient form. The third
chamber is for the reception of the filtered liquid and may be dispensed with if
desired, the filtered liquid in this case being run off direct from the filtering
material through pipe f Filtration in an upward or transverse direction is
preferred. The machinery or apparatus may be made of metal, glass or earthen-
ware.
In connecting the inlet tap for the milk or other liquid to be filtered I prefer
to use an india-rubber gland or union having a funnel shaped interior, in order to
make an air-tight joint around such inlet tap. Such a gland or union however forms
no part of the present invention.
In the annexed drawings similar letters are used to denote like parts in all the
views.
Fig. 1 is an elevation of the improved machinery or apparatus according to this
invention.
Fig. 2 is a sectional elevation of the same.
Fig. 3 is a plan.
Milk or other liquid to be filtered passes by means of a tap into the apparatus
at a, preferably through an interiorly tapered or funnel-shaped india-rubber gland
or union down the pipe b, into the lower chamber c, then upwards through sponge
or other suitable filtering material d, in the second chamber passing into the
third chamber e, and out at the pipe f
Heavy foreign matter contained in the liquid under treatment descends into the
chamber c, while the lighter foreign matter is caught or intercepted by the filtering
medium d, above referred to.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare than what I
claim is :-
1. Filtering or straining machinery or apparatus for milk and other liquids,
constructed, arranged and operating substantially as described and shown in the
drawings annexed, but without the gland or union a.
2. In filtering or straining machinery or apparatus for milk and other liquids

page_text: constructed with a lower chamber e and an upper filtering chamber d¹ the use of
sponge or other suitable filtering material substantially as described.
3. The method of upward or transverse filtration substantially as described.
1000
WILLIAM MORTON,
By L. W. per F. B.