IMPROVEMENTS IN APPARATUS FOR STRAINING AND DRAWING OFF LIQUIDS
Year: 1863

page_text: LETTERS PATENT to Samuel John Bartlett, of Maidstone, in the County
of Kent, Watch and Clock Maker, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR STRAINING AND DRAWING OFF LIQUIDS."
Scaled the 16th October 1863, and dated the 2nd May 1863.
PROVISIONAL SPECIFICATION left by the said Samuel John Bartlett
at the Office of the Commissioners of Patents, with his Petition, on tho
2nd May 1863.
I, SAMUEL JOHN BARTLETT, of Maidstone, in the County of Kent, Watch
and Clock Maker, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPARATUS FOR STRAINING AND DRAWING OFF LIQUIDS," to be
as follows:-
This Invention relates to a cheap and simple contrivance to be fitted to tea
and coffeo urns and other vessels employed in the preparation of infusions and
decoctions, also to cisterns, tanks, or vats, whereby the infusion or other liquor
to be strained and drawn off' is obtained in a clear state.
In applying this Invention to an ordinary or other urn intended to be used
in the preparation of infusions of tea or coffee an inverted cup or bell of metal,
porcelain, or other suitable material, is to be placed near the bottom of the
urn with its mouth downwards. To the top of this bell or inverted cup is
fitted a syphon pipe curving downwards outside the cup to a little below the
mouth thereof, and then entering the ordinary draw-off tap or cock. A

page_text: s:rainer or filter of perforated metal, wire gauze, or other suitable material, is
placed in the mouth of the cup. In preparing coffee or tea by this improved
urn the coffee or tea is first introduced on to the bottom of the urn, and the
hot water is then poured in over the bell or cup. The air therein is rarified
and expanded and escapes in the form of bubbles from under the lower lip,
thereby keeping the coffee or tea agitated for a short period and allowing it to
bo well saturated by the hot water. So soon as the grounds have settled the
infusion is ready to be drawn off through the tap in the usual manner, the tap
pipe and cup or bell forming together a syphon. If preferred, the syphon
pipe may, in place of passing outside and through the top of the cup, descend
through the centre of the mouth of the same and through the bottom of the
urn instead of out at the side. It is obvious that the above arrangements of
inverted cup and strainer aro applicable to the straining of infusions of all
kinds, and to the straining of liquids generally when placed in the receptacles
containing such infusions or liquids.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel John Bartlett in the Great Seal Patent Offico on the
2nd November 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, J, SAMUEL
JOHN BARTLETT, of Maidstone, in the County of Kent, Watch and Clock
Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing dato the Second day of May, in the year of our Lord One
thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Samuel John Bartlett, ller special license, that I, the said Samuel
John Bartlett, my executors, administrators, and assigns, or such others as
I, the said Samuel John Bartlett, my executors, administrators, or assigns,
should at any time agree with, and no others, from time to time and at
all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN APPARATUS FOR STRAINING AND DRAWING OFF LIQUIDS," upon
the condition (amongst others) that I, the said Samuel John Bartlott, my
executors or administrators, by an instrument in writing under my hand and
seal, or under the hand and scal of one of them, should particularly describe

page_text: and ascertain the nature of the said Invention, and in what manner the samo
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Samuel John Bartlett, do hereby
declare the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawings, and
to the letters and figures marked thereon, that is to say :-
My said Invention relates to a cheap and simple contrivance to be fitted to
tea and coffee urns, and other vessels employed in the preparation of infusions
and decoctions, also to cisterns, tanks, or vats, whereby the infusion or other
liquor to be strained and drawn off is obtained in a clear state.
In applying this Invention to an ordinary or other urn intended to be used
in the preparation of infusions of tea or coffee an inverted cup or bell of metal,
porcelain, or other suitable material, is to be placed near the bottom of the
urn with its mouth downwards. To the top of this bell or inverted cup is
fitted a syphon pipe curving downwards outside the cup to a little below the
mouth thereof, and then entering the ordinary or other draw-off tap or cock.
A strainer or filter of perforated metal, wire gauze, or other suitable material,
is placed in the mouth of the cup. In preparing coffee or tea by this improved
urn the coffee or tea is first introduced into the bottom of the urn, and the hot
water is then poured in over the bell or cup. The air therein is rarified and
expanded, and escapes in the form of bubbles from under the lower lip, thereby
kooping the coffee or tea agitated for a short period and allowing it to bo well
saturated by the hot water. So soon as the grounds have settled the infusion
is ready to be drawn off through the tap, the tap pipe and cup or bell forming
together a syphon, and the liquid is consequently obliged to rise before it is
drawn off; in case of descending, as is the case in most other arrangements
where the receptacle is abovo the vent, and where the heavier particles pass
away with the liquid, by the syphon arrangement this is obviated. If pre-
ferred, the syphon pipe may, in place of passing outside and through the top
of the cup, descend through the centre of the mouth of the same and through
the bottom of the urn or other vessel instead of out at the side. It is obvious
that the above arrangements of inverted cup and strainer are applicable to the
straining of infusions of all kinds, and to the straining of liquids generally,
when placed in the receptacles containing such infusions or liquids.
And in order that my said Invention may be fully understood, I shall now
proceed more particularly to describe the same, and for that purpose I shall

page_text: refer to the several Figures on the Sheet of Drawings hereunto annexed, the
samo letters of reference indicating corresponding parts in all the Figures.
Figure 1 of the Drawings represents an elevation of a coffee or tea urn
provided with my improved apparatus, a portion of the side of the urn being
broken away to show the apparatus more clearly; Figure 2 is a full-sized
vertical section of the strainer; Figure 3 is a plan of the top of the same;
Figure 4 is a plan of the strainer detached from the inverted cup;
Figuro 5 represents the two halves of the strainer separated for the facility of
cleaning.
and
A is the body of the urn; B, the usual or any other drawing-off' tap fitted
therein in the ordinary manner; C is the inverted cup, having a passage D
formed on the exterior thereof communicating at the upper end with the
interior of the cup at the crown thereof a, whilst at the lower it is formed
with a nozzle d, which is made to fit accurately into the interior of the passage
or thoroughfare of the tap, being made slightly tapered to ensure a better fit.
The form of strainer which I have found to answer the best for tea and coffee
urns is that shown in the Drawings; it consists of fine wire gauze E soldered
on to a metal rim e, which rim fits into or over another rim f having a finely
perforated plate F soldered therein. When the two parts are fitted together,
as in Figure 2, a doublo strainer is produced. The cup and its strainer can
be readily removed from the urn, for the purpose of cleaning the same or
repairs, by withdrawing the nozzle d from the interior of the orifice of the tap.
It is obvious that this strainer may be applied to a variety of useful purposes
other than those already referred to, as, for example, to the taps of kitchen
and other waste boilers to prevent grit or other foreign matters getting into
the tap and causing leakage by the grinding away of the plug; also to the
vats of distillers, brewers, and paper makers, where perfect clearness is
required, and to domestic cisterns or water-closet tanks, to prevent floating or
gritty impurities from entering the pipes and causing stoppages.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried
into effect, I would observe in conclusion, that what I consider to be novel
and original, and therefore claim as the Invention secured to me by the
berein-before in part recited Letters Patent, is,―
First, the general construction, arrangement, and combination of apparatus
for straining and drawing off liquids, as herein-before described.
Second, the combination of inverted cup and straining medium with an
outflow passage, made either externally or internally, to the cup, as herein-
before described.

page_text: Third, the application and use to and in the straining of liquids of all kinds
of the peculiar apparatus herein-before described.
In witness whereof, I, the said Samuel John Bartlett, have hereunto set
my hand and seal, this Twenty-ninth day of October, One thousand
eight hundred and sixty-three.
SAMUEL JOHN BARTLETT. (L.B.)