Improvements in Cocoa and Chocolate Urns.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Cocoa and Chocolate Urns.
THOMAS HENRY RUSSELL, Hot Water Fitter, tc., 31, Newcastle Street Strand
London W.C. 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:―
The object of this invention is to keep liquors prepared with pure cocoa essence
or extract, as well as all other cocoa and chocolate preparations in liquid form
absolutely mixed through the actuation of an apparatus attached to any common
urn. This appendage works automatically in drawing off the liquor, for by a
simple upward and downward motion of a handle fixed to a sliding bar, an evolution
of any sediment present is caused by air pressure; and as a result of this revolution
the liquid food reaches the tap passage in a perfectly mixed, and consequently
palatable condition.
Figure 1, gives a sectional view of an ordinary cocoa, coffee, or tea urn with the
improvement under notice, which latter can in the manufacture of new urns be
joined to the earthenware jar passing it through the outer mantle into the water
jacket, and thereby save space, while on old urns it can simply be attached to the
external copper or nickel-plated mantle by means of brass or copper hoops, and no
derangement of the original state of the urn thus becomes necessary.
A. shows the inner space of an earthenware jar containing the cocoa or
chocolate.
B. represents the water jacket, or circular space between the outer mantle of urn
and the water jacket.
C. shows an ordinary straight urn cover.
D. is a filling spout for water jacket B.
E. is the tap from which the cocoa liquid, etc., is drawn, the inner end extending
to the interior of the earthenware jar.
F. is a screw plug for cleansing tap passage.
G. indicates the position of gas burner intended for maintaining of high
temperature in space B.
a.,
which is part of the invention shows a cylinder, the lower extremity of which
is connected with tap passage through tube c., and the upper end is provided with a
cover d. fixed to a rini at the extreme border with two screws, and which in turn
supports a stuffing box e.
6. is a club or piston, part of which is provided with stuffing, and which by its
downward motion causes the necessary pressure-through pipe .-to disturb the
contents of A. in a most effective manner.
c. is the connecting pipe of cylinder and inner pan.
d. is the cover of cylinder a.
e. is a stuffing box secured from the interior of cover d., and which steadies
piston rod f
is a copper tube passing through stuffing box e. It forms a curb on its upper
part, and at its lower end in cylinder u. it is secured to club ., while at its upper
end it is joined to a sliding bar h. through a cup and ball joint.
g. shows a tube which from the lower surface is securely fixed to the outer
surface of cylinder a. All along its upper surface there is a slot or groove for the
motion of handle i., and at its lower end there is an inlet or slot half way down-
wards in order to allow the convenient turning of tap cone j., and consequent
opening of liquor passage, and in this condition it very much resembles the slide of
an ordinary door bolt.

page_text: h. represents the sliding bar joined at its upper extremity to rod f. through a
ball joint which permits its turning round freely, while at its lower end it is
provided with a-square cavity or hole, which on descending, of. bar h. covers the
square upper end of tap cone j
i. shows a handle fixed to bar h, by the aid of which the latter is moved up and
down together. with pistom or club: After drawing-it down and turning it into
the horizontal slot to the right the liquor is drawn off by the turning of tap cone.
All parts coming in immediate contact with the food are appropriately made of
tinned copper.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
1. That my invention is the simpliest and most effective means for keeping good
qualities of cocoa and chocolate (always insoluble) absolutely mixed without the
necessity of stirring and uncovering the urn, or introducing a fan, etc. into the
inner pan, and that by the action of in a and through into A the food is kept
in a palatable condition for any desired length of time.
2. That this apparatus can be affixed to any existing urn by means of brass rings
without loss of time or alteration of the urn itself, and thereby saves great expense
or necessity of removal of urn to effect the improvement.
Dated the 20th day of February 1891.
THOMAS HENRY RUSSELL.