IMPROVEMENTS IN AND APPERTAINING TO URNS AND OTHER VESSELS OR LIKE APPARATUS FOR KEEPING TEA AND OTHER ARTICLES OF FOOD HOT
Year: 1878

page_text: LETTERS PATENT to Daniel Rushworth, of Liverpool, in the County of Lan-
caster, for the Invention of "IMPROVEMENTS IN AND APPERTAINING TO URNS
AND OTHER VESSELS OR LIKE APPARATUS FOR KEEPING TEA AND OTHER
ARTICLES OF FOOD HOT."
Sealed the 21st March 1879, and dated the 27th September 1878.
PROVISIONAL SPECIFICATION left by the said Daniel Rushworth at the.
Office of the Commissioners of Patents on the 27th September 1878.
DANIEL RUSHWORTH, of Liverpool, in the County of Lancaster. "IMPROVEMENTS
IN AND APPERTAINING TO URNS AND OTHER VESSELS OR LIKE APPARATUS For
KEEPING TEA AND OTHER ARTICLES OF FOOD HOT."
In tea and coffee urns which are used in shops the interior is generally made of
pottery-ware. The pot is surrounded with a water jacket to preserve it; this
arrangement being necessary to keep the liqued pure and unburnt. The pot is
costly, liable to break, and its glaze is soon destroyed. To obviate these defects I
make the interior of enamelled iron. The exterior jacket being copper or tin is
secured to the enamelled iron on the top.
A cap or cover is placed over the enamelled pot to keep the steam in and the
dust out. The water of the water jacket is poured in from above at an opening
near the top fitted with a lid. The tap for drawing off the tea proceeds through
the enamelled iron and the copper to the outside, and is made water-tight through
both by a plaster or other suitable joints.
Another tap opening into the outside case only is used for drawing the water
from the jacket when required. This apparatus can also be used for keeping solid
foods or mixtures of solid and liquid food in the heated state, only in this case the
solids are forked out from above instead of being run through the tap, which latter
can be dispensed with in such case.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Daniel Rushworth in the Great Seal Patent Office on the 27th March
.1879.
DANIEL RUSHWORTH, of Liverpool, in the County of Lancaster.
"IMPROVEMENTS
IN AND APPERTAINING TO URNS AND OTHER VESSELS OR LIKE APPARATUS FOR
KEEPING TEA AND OTHER ARTICLES OF FOOD HOT."
In tea and coffee urns which are used in shops the interior is generally made of
pottery-ware. The pot is surrounded with a water jacket to preverse it; this
arrangement being necessary to keep the liquid pure and unburnt. The pot is
costly, liable to break, and its glaze is soon destroyed. To obviate these defects I
make the interior chamber A of iron enamelled on the interior surface. The exterior
jacket B, being copper or tin, is secured to the enamelled iron on the top at C by
lugs or otherwise, provision being left for the escape of steam all round.
A cap or cover D is placed over the enamelled pot to keep the steam in and the
dust out. The water of the water jacket is poured in from above at an opening E
near the top fitted with a lid. The tap F for drawing off the tea proceeds through
the enamelled iron and the copper to the outside, and is made water-tight through
both by plaster or other suitable joints, as shown in the Drawing; it is in three parts.
A pipe or sleeve is carried through both casings, with flanges attached to make
good joints. The tap proper is then screwed into this sleeve. Another tap G,
opening into the outside case only, is used for drawing the water from the jacket
when required.
This apparatus can also be used for keeping solid foods or mixtures of solid and
liquid food in the heated state, only in this case the solids are forked out from above
instead of being run through the tap, which latter can be dispensed with in such case.
Having now described my Invention, and the best modes known to me of carrying
it into effect, I wish it to be understood that what I believe to be new and desire
to protect under the herein-before in part recited Letters Patent is,-
The manufacture and use of urns or food receptacles, substantially as herein
described, consisting of a tin, copper, or other exterior casing and interior chamber
of enamelled iron, and a water space between these heated by gas flame, oil lamp, or
other heating appliance below.
In witness whereof, I, the said Daniel Rushworth, have hereunto set my hand
and seal, this Twenty-fifth day of March, in the year of our Lord One
thousand eight hundred and seventy-nine.
Witness,
JOHN HAYES,
Apprentice to, W. P. Thompson, C.E.,
Patent Agent,
6, Lord Street,
Liverpool,
&
323, High Holborn,
London, W.C.
DANIEL RUSHWORTH." (L.S.)