An Improved Filter for Attachment to Taps and Stop-cocks.
Year: 1889

page_text: Date of Application, 21st Feb., 1889
Complete Specification Left, 31st Oct., 1889-Accepted, 7th Dec., 1889
PROVISIONAL SPECIFICATION.
An Improved Filter for Attachment to Taps and Stop-cocks.
WILLIAM DALTON, Windsor House, 9 Dickson Road, North Parade, Blackpool,
Lancashire, no occupation, do hereby declare the nature of this invention to be as
ollows:-
It is intendid by this my invention to be useful for filtering of Spirits, Wines,
Beer & other liquors or liquids and may also be used in such cases where Taps or
Cocks are liable to be obstructed or choked by sediment or floating matter, for the
urpose of my invention the apparatus required will consist as follows. I require a
piral spring which may be made of brass, steel, iron or other suitable metal. This
pring is intendid to be wholly or partially covered with cloth, canvas, woollen, or
or any other suitable material. The spring as above discribed may be partially or
wholly inserted into & within the Plug or Barrel end of the Tap or Cock & is intendid
o act as a filterer for the purpose of purifying & refining the Liquor or Liquors
when passing through Tap or Cock during the operation of drawing from a cask,
barrel or other vessel or utensil.
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WILLIAM DALTON,
9, Dickson Road, North Parade, Blackpool, Lancashire.
COMPLETE SPECIFICATION.
An Improved Filter for Attachment to Taps and Stop-cocks.
I, WILLIAM DALTON, of Windsor House, 9 Dickson Road, North Parade Blackpool,
in the County of Lancaster, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention is designed chiefly for application to taps or cocks for casks or
barrels for beer, wines and similar liquors with the object of filtering the liquor and
preventing any dregs or sediment passing through the tap.
It consists essentially of a tap or cock having a filter attached thereto in the
form of a perforated telescopic tube attached to or surrounded by a spiral spring
whereby the filter may be compressed within the barrel of the tap while being
inserted into the cask and expanded beyond it as soon as the tap is in position.
It will be fully described with reference to the accompanying drawings:
Fig. 1, is a sectional elevation of tap with filter attachment constructed according
to my invention.
Fig. 2, plan.
Fig. 3, sectional end elevation on line x-y.
Fig. 4, elevation of filter attachment unconnected with the tap.
Fig. 5, elevation of modification of filter attachment.
Fig. 6, elevation of the tap barrel B.
The tap A is formed with a plug and nozzle of any ordinary construction, as shown,
a union being fitted to the nozzle to connect it with a pump but this latter may be
dispensed with. To the barrel B of the tap is attached a filter through which
the liquor must pass before entering the tap, the filter being so arranged that-
it can be compressed within the barrel B of the tap when the latter is being inserted
into the cask. The filter consists of a perforated tube C_preferably telescopic as
shown in figs. 1-4. The tube is surrounded by a spring D which serves to expand
it or withdraw it from the barrel B when compressed therein. At the outer end c the
spring is soldered or otherwise attached to the tube C and at the inner end it is
[Price fid 1

page_text: fitted with a ring d to which both it and the perforated tube are soldered or fixed.
The barrel of the tap is formed in two parts screwed or otherwise connected
together preferably at the end nearest to the plug to allow of the filtering tubes
being inserted therein. The ring d abuts against the shoulder b on the inner side
of the barrel when the spring is compressed, and the collar or shoulder b¹ prevents
it being withdrawn therefrom when the barrel is screwed into position. A sponge E
and a perforated plate or diaphragm F are inserted into the upper end of the tap
to assist in the filtration.
The spring and tube may be wholly or partially covered with cloth, canvas, woollen
or other material to assist in the filtration. A modified form of the filtering
apparatus. is shown in Fig. 5 the perforated tube only extending beyond the tap
barrel B, and the spring being maintained within the barrel. The perforated
tube may either be single as shown or be telescopic as in the other figs. A ring d
abuts against the shoulder and a ring d' against the shoulder b'.
In operation the filter is compressed within the barrel B of the tap A when the
tap is placed against the cork or bung of the cask for the purpose of tapping it. As
soon as the barrel B enters the cask the spring expands and projects the perforated
tube beyond the end of the tap. The liquor passing through the tap must pass
through the perforated tube and any sediment or floating matter is thereby
prevented entering and passing through the tap. The apparatus may he applied
to the filtering of beer, wines, or other liquors or liquids contained in casks, barrels
or other similar receptacles.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I wish it to be under-
stood that I am well aware that perforations more or less large have been made
in the barrels of taps for withdrawing liquors from casks and such forms no part
of my invention, but I declare that what I claim is :-
1. A filter attachment for taps and cocks having a perforated tube telescopic or
single which may be compressed within the tap barrel and a spring by which when
released it is ejected therefrom substantially as described.
2. The combination with a tap or cock of a perforated filter tube and a spring to
which it is attached substantially as and for the purpose described.
3. A filter for attachment to taps and cocks constructed and arranged substantially
as described and shown.
Dated this 29th day of October 1980
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.