Improvement. in Cocoa Urns.
Year: 1890

page_text: Date of Application, 12th Feb., 1890-Accepted, 7th Feb., 1891
COMIENIE DI MUITIVATION.
Improvement. in Cocoa Urns.
THOMAS HENRY RUSSELL, Hot Water Fitter, etc., 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 :-
This modified cocoa and chocolate urn is intended for keeping pure cocoa and
chocolate liquor thoroughly mixed and homogenous for any desirable length of time,
without there being any necessity of stirring up the same from time to time with
some suitable appliance by removing the urn cover C. The main principle of this
invention is in harmony with that of application 17826 Nov. 8, 1889, but the action
and construction of the apparatus added to the ordinary urn materially differs,
inasmuch as the handle producing the action is drawn in a vertical instead of a
horizontal direction.
Fig. 1. represents in a sectional view an ordinary urn to which this invention has
been affixed.
A. indicates an earthenware jar containing the liquid food above named.
B. is the space between the earthenware jar and the exterior copper or nickel-
plated urn mantle, and which contains warm water, intended to maintain the
necessary temperature of the liquid food in space A.
C. indicates the position of the ordinary urn cover.
D. shows the position where the spout for filling space B. is situated, called the
water jacket.
E. is the tap for drawing off the liquid cocoa or chocolate, with its cone (intended
for opening and closing the passage of the liquor) in a horizontal instead of a vertical
position, as on ordinary urns.
F. is a screw plug to the tap, which can be taken out for cleansing the
passage, etc.
G. indicates the position where the gas burner is situated, and which is con-
stantly kept burning, with a view to maintaining the temperature of the liquid food
in jar A.
a. is the fan which is turned by the downward and upward motion of handle g;
is connected with spindle c., and in thus actuating the fan forward and backward,
the liquid food is kept perfectly mixed.
b. is the square spindle bar, which bears fan a. On one side it is borne in the
square, central hole of spindle c., whereas the other end drops into the round cavity
of bearing l
c. is the spindle bearing and turning fan a. On the inner side it passes through
the stuffing box d. and on the screwed portion it bears the nut e., and the steadying.
nut f; whereas on its outward square end it bears cam k., which at its extreme end
is connected with connecting rod h., and finally the handle 9.
. d. is the stuffing box, containing the stuffing, and is fixed from the interior of
the earthenware jar.
e. is a nut, which screws over spindle c., and accurately fits into the stuffing
box d. When screwed towards the interior of stuffing box d. nut e. tightens the
stuffing, and thus prevents all penetration of liquid to any of the exterior parts.
f. is a steadying nut, which likewise screws over spindle c., and is intended for
keeping stuffing nut e. perpetually in position. It is provided with a screw passing
through from the exterior to the central hole.
g. is the handle affixed to the end of spindle c. by means of a steadying screw
fitting from the top into a groove, and in being turned downwards perpendicularly

page_text: in a right circular direction the desired actuation of fan a. is produced, while tap E.
is opened at the same time to allow a free passage for the liquid food through the
central hole of the tap cone by the intermediary action of lever crank k., connecting
rod ., and lever crank i.
k. is a lever or crank joined to the upper part of h. through an universal joint,
actuating in the same direction as handle 9.
h. is a connecting rod the upper part of which is joined by an universal joint to
crank ; and the lower part is joined to lever crank i. to permit easy motion of top
connections.
i. is the crank fixed to square end of tap cone, and in direct connection with
rod h.
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 by the application of this fan a. set in motion by opening and closing
the tap for drawing the necessary liquid food, the purest and most insoluble
qualities of cocoa and chocolate can be kept permanently mixed and in a palatable
condition.
2. That the manual motion and actuation of the mechanism has been much
simplified through the substitution of the horizontal with the vertical circular
direction in of tap handle g. in drawing the liquid cocoa or chocolate.
3. That by this simple accessory affixed to the ordinary urn all loss of labour
and high necessary high temperature occasioned by frequent uncovering of the urn,
and the stirring up of the liquor necessary by the use of urns without this apparatus
is totally avoided.
4. That this accessory can be affixed to any existing urn at a low cost.
THOMAS HENRY RUSSELL.