Improvements in Milk Straining or Filtering Appliances, and in Milking Vessels for Use in Combination therewith.
Year: 1897

page_text: Date of Application, 5th Jan., 1897-Accepted, 27th Mar., 1897
Improvements in Milk Straining or Filtering Appliances, and in
Milking Vessels for Use in Combination therewith.
"We WILHELM VON DER NAHMER and ADOLF VON DER NAHMER,-of
the Firm of Alexander A. Von der Nabmer, Gesellschaft mit beschränkter Haftung,
of Remschied, in the Empire of Germany, 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 and accompanying
drawings:
Our said invention relates to improved means for straining or filtering impurities
from milk, and to the milking vessels used in conjunction with such filtering means.
Straining appliances have heretofore been used in conjunction with milking cans
but such appliances have consisted merely of perforated or woven sieves or
strainers placed upon the milking vessels and liable to be quickly choked by
impurities and to overflow with foam and scum.
According to our invention our improved filter is composed of a hair or bristle
brush or filtering body placed in the neck or throat of a funnel which is thrust
into the spout of the milking vessel. The brush filter is efficacious and can easily
be removed and cleansed, while the funnel can be applied to or removed from the
milking vessel in a moment. Our invention also covers slight improvements in the
milking vessels used in conjunction with the said filter.
In the accompanying illustrative drawings.
Fig. 1 is an elevation and plan of the brush filter body.
Fig. 2 is a section of the conical funnel containing the brush filter.
Fig. 3 is an elevation and plan of the straining box into which the neck of the
funnel is inserted.
Fig. 4 is a section of the filter funnel taken at right angles to Fig. 2 but fitted
with a strainer box b.
Fig. 5 is a perspective view of the improved milking vessel carrying the filter
funnel.
The throat c' of the conical funnel receives the brush filter a which is composed
of hairs or bristles radiating from a central wire core. The said brush filter, as
shown at Fig. 1 is cylindrical where it occupies the funnel throat c' but conical
where it fills the conical part of the funnel. The brush a is simply thrust into the
funnel throat from the upper side. By reason of the nature of the brush filter
the formation of foam is greatly hindered or prevented and the successive layers of
hairs or bristles make a most efficient filter, arresting almost all impurities. At
the bottom of the box c (as seen in Fig. 2) is a strainers which subjects the milk
to a final straining, and lets it flow in a filtered condition into the milk vessel.
After use the brush filter body can be easily cleansed by withdrawing it from
the funnel and washing or otherwise cleansing or purifying it. Instead of forming
the outer wall of the funnel neck with a strainer foot as shown in Fig. 2 we might
cause it to terminate at the same point as the inner throat c' and insert the neck c
into a separate box 6 (see Fig. 4) which is provided with a strainers at the foot.
The strainers is on one side of the box, leaving an angle or elbow on the other
side as plainly shown in Fig. 4, the said elbow forming a trap or deposit chamber
into which sediment can settle and be from time to time removed.
ID 21
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page_text: The neck c of the funnel is formed with a projection which enters a recess i in
the top edge of the strainer box band so prevents the funnel and box from
shifting, relatively to each other. The same projection v also engages with a
recess in the spout u of the milking vessel m so that the three parts are all held
together. The milking vessel m is closed by a stout cover n and as the milking
vessel is furnished' with feet or supports o, it can be used as a stool upon which the
person who milks may sit while at work. The milk is milked into the funnel c and
passing through the filter and strainer enters the vessel m.
the vessel m in a level position when being carried by the handle h, we connect
In order to preserve
the handle by a chain k to the outer end of the spout u.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is.
(1.) A filter for use in conjunction with milking vessels and consisting of a
circular brush shaped body composed of hair or bristles in combination with
and inserted into a funnel capable of being applied to the spout of the milking
vessel substantially as described and shown.
(2.) In combination with a filter funnel such as is indicated in Claim 1 the
separate or separable straining box capable of being slipped upon the funnel
neck and formed with a perforated straining bottom, the said straining box
fitting the spout of the milking vessel, substantially as described and shown.
(3.) In a combined milking vessel and filter funuel as illustrated in Fig. 5 the
chain k or other means for connecting the handle to the spout for the purposes
and substantially as described and shown.
(4.) The improved combined filtering milking vessel substantially as described
and as represented in the drawings.