Improvements in Utensils for Preparing Cocoa or Chocolate.
Year: 1893

page_text: Date of Application, 13th Sept., 1893-Accepted, 11th Nov., 1893
COMPLETE SPECIFICATION.
Improvements in Utensils for Preparing Cocoa or Chocolate.
I, JOHN WILHELM ROWNTREE, Cocoa Manufacturer, of The Cocoa Works,
York, 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 invention relates to utensils for preparing cocoa or chocolate and has
for its object to construct them so as to improve the quality of the beverage
prepared.
The invention will be best understood by reference to the accompanying drawings
in which
Figure 1 is a front elevation, partly broken away, of the complete apparatus
constructed according to this invention.
Figure 2 is a plan, partly broken away, showing the apparatus but without the
infuser.
Figures 3 and are respectively a vertical section and a plan of the infuser,
and
Figure 5 is a plan of the lower part of the infuser.
Like letters indicate like parts throughout the drawings.
Referring first to Figures 1 and 2 the apparatus consists of a vessel A. A' A'
the upper part A' tapering downwards and being connected to the central part A
which also tapers downwards but to a less degree. The part A2 is also of taper
form but contrary to A A' its part of smallest diameter is uppermost, its largest
diameter being at the bottom where it is closed.
The part A is provided with a suitable spout B and with a handle C and to the
part A are secured trunnions D by which the vessel A A' A' is supported in
bearings E secured to the upper part of the hollow base F. Within this hollow
base is provided a Bunsen or other suitable gas or equivalent burner and air is
admitted to the interior of this base through perforations F1 the products of com-
bustion being free to escape upwards between the edge of A' and the surrounding
wall of F. The infuser which is adapted to fit tightly into part A of the
vessel A A'A' as shown in dotted lines in Figure 1, consists of two parts G and G'
the latter adapted to fit tightly into the former substantially in the manner shown
in Figure 3. The part G has a downwardly extending rim g tapering to substan-
tially the same extent as the part A of the vessel A A1 A2 and is perforated at its
domed roof with holes g' which are preferably of fairly large size averaging say
from an eighth inch diameter to a quarter-inch or more or less. The part G of the
infuser is also provided with a handle 9' which enables it to be readily grasped.
The part G' consists of a bottom plate 93 perforated with a considerable number of
holes g of a diameter of about one-sixteenth of an inch or less. The part G'
moreover is provided with an upwardly extending rim 9 which tapers towards its
upper part and with a handle 9 by means of which and the before mentioned
handle the two parts G G' may be readily separated or fitted together.
A distinct advantage of the before-described apparatus over other apparatus
hitherto used for a similar purpose is that whereas the construction formerly
adopted was such that the chocolate had to be placed in the apparatus in the form
of lumps, in an apparatus constructed according to this invention it is employed in
the form of powder the perforations 9* being of such small diameter as to ensure
the powder from falling through them yet being large enough to admit of the milk
or milk and water boiling beneath the powder entering the infuser G G' and thus
permit of a uniform amalgamation of the powder with the liquid.

page_text: As the diameter of the part A' of the vessel A A' A' is larger at the
bottom than at the top greater heating surface is provided for the flame to act
upon than would be the case were the part A cylindrical and so in this form of
vessel the steam is generated with more power and consequently the liquid is able
to force its way successfully through the small holes 9 in the bottom of the
infuser.
It will be readily understood that the infuser G G is removed from the
vessel A. A¹ A whenever a fresh charge of cocoa or chocolate powder is
required the two parts G G¹ being first separated to admit of the powder being
placed in the infuser and after being closed together in the manner shown in
Figure 3 being placed in the vessel A A' A'.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is ;-
1. A utensil for preparing cocoa or chocolate consisting of a vessel such
as A A' A' the three parts A A' A' tapering substantially as described and
illustrated in Figure 1 of the accompanying drawings.
2. The combination and arrangement of parts constituting the complete utensil
for preparing cocoa or chocolate substantially as described and illustrated in the
accompanying drawings.
Dated this Tenth day of September 1893.
JOHN WILHELM ROWNTREE.
W. P. Thompson & Boult,
Agents for the Applicant.