Improvements in the Construction of Pie or Pastry Ovens, and of Tea or other Extract Urns or Vessels in connection therewith.
Year: 1891

page_text: Date of Application, 20th Feb., 1891
Complete Specification Left, 20th Nov., 1891-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Pie or Pastry Ovens, and of
Tea or other Extract Urns or Vessels in connection therewith.
I, JAMES CHAPMAN Junior of 119 Murraygate, Dundee, Scotland, Confectioner,
do hereby declare the nature of this invention to be as follows:-
This invention relates to certain improvements in the construction of pie or
pastry ovens and of tea or other extract urns or vessels in connection and consists
of the construction in combination of a cistern with automatic supply, an oven for
pie or pastry baking said oven being water jacketed supplied from the before
mentioned cistern. Below the oven is a gas or heating chamber and one or more
urns or vessels for supply of tea, coffee or other alimentary fluid either as infusion,
extract essence, or solution with water.
The cistern is supplied from suitable source under pressure and is fitted with
ball cock which shuts when the cistern is full, by float or ball lever. From the
cistern a suitable pipe is led to the water casing of the oven which has hollow or
double top bottom and sides and also hollow shelves where permanent shelves are
required all of which spaces are in connection so that the water may circulate
freely throughout.
The urns or vessels containing the tea, coffee or other infusion or solution or
dilute extract as alimentary fluid are fixed above the level of the oven and a little
in front of it, on suitable brackets. From these urns or containers pipes or tubes
are carried down in front of and near the sides of the oven to a two-way or
double tap and said tap is further connected with a pipe in connection with the
jacket water space whereby a supply of water and of tea or other alimentary
fluid combined in certain predetermined proportions by one motion of the tap
handle.
A tap is also fitted near the bottom of the oven for drawing off a supply of
water by itself. The passages through each of the two-way cocks is to be made
in size proportional to the quantities of the liquids in mixture.
The jacketting water is thus serving the double purpose of keeping the oven
heated and providing hot water for supply of tea coffee or other alimentary fluid.
The automatically supplied cistern is fixed close alongside the oven and a pipe for
escape of steam from the jacketting water is carried to the upper part of the
cistern same being turned down over the edge of same so that the steam will be
condensed by the water in the cistern and aids partially in maintaining the heat.
The shelves will be in number as required and the heating be by gas oil or common
fire.
The tap or cock employed should have two ways through the plug to allow of
two different liquids to run out at one time into one cup or receiver and the ways or
holes should be of size relatively to each other, requisite for the predetermined
quantities or proportions of the fluids, to be brought into mixture.
Dated this 20th day of L
1001
HUGHES, ELI & HUGHES,
76, Chancery Lane, W.C., Agents for Applicant.

page_text: COMPLETE SPECIFICATION (AMENDED).
Improvements in the Construction of Pie or Pastry Ovens, and of
Tea or other Extract Urns or Vessels in connection therewith.
1 JAMES CHAPMAN Junior of 119 Murraygate, Dundee Scotland, Confectioner
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 certain improvements in the construction. of pie or
pastry ovens and of tea or other extract urns or vessels in connection therewith and
.consists of the construction in combination of a cistern with automatic supply, an
oven for pie or pastry baking or heating said oven being water jacketed supplied
from the beforementioned cistern.
Below the oven is a gas or heating chamber and one or more urns or vessels
above for supply of tea coffee or other alimentary fluid (either as infusion, extract
'essence, or solution with water).
The cistern is supplied from suitable source under pressure and is fitted with
ball-cock which shuts when the cistern is full, by float or ball lever.
From the cistern a suitable pipe is led to the water casing of the oven which has
hollow or double top, bottom back and sides and also hollow shelves where pérma-
nent shelves are required all of which spaces are in connection so that the water
may circulate freely throughout.
The urns or vessels containing the tea, coffee, or other infusion or solution or
dilute extract as alimentary fluid are connected up with the water jacketting-space
and hot water supply, and the connecting pipes-will-be-provided with "shut-off"
taps for use when-the-urns-have-to-be refilled fixed above the level of the oven and it
may be a little in front of it, or on the top of the oven, and the connection between the
urrs and the oven is maintained by the two way or double tap hereinafter mentioned.
From these urns or containers pipes or tubes are carried down in front of and
near the sides of the oven to a two way or double tap and said tap is necording to
one-construction further connected with a pipe in connection with from the jacket
water jacketting space whereby a supply of hot water and of old tea or other alimentary
fluid extract combined in certain predetermined proportions by one motion of the tap
handle, or separate-tups may be used may be obtained. A tap is also fitted near the
bottom of the oven for drawing off a supply of water by itself.
The passages through each of the two way cocks are to be made in size propor-
tional to the quantities of the liquid in mixture.
The jacketting water may thus serve the double purpose of keeping the oven
heated and providing hot water for supply of tea, coffee or other alimentary fluid.
The automatically supplied cistern is fixed close alongside the oven or above it
or inside if thought desirable and a pipe for escape of steam from the jacketting
water is carried to the upper part of the cistern and being turned down over the
edge of the said cistern so that the steam will be condensed by the water in the
cistern and so aid, partially, in maintaining the heat. The shelves will be in
number as required and the heating be by gas oil or common fire. When the
jacketting water is to be used for drinking or cooking purposes the material of
which the sides of the jacket is composed will require to be made of copper. or
other suitable metal which will not contaminate the water but when the jacketting
water is only to be used for heating the oven the material of the sides of the
jacketting spaces may be of block tin or other inferior metal.
In the drawings annexed hereto there is shown a construction according to this
invention wherein
Fig. 1 is a front elevation,
734

page_text: and
Fig. 3 a section at line A. B. and Fig. 4, a section at line C. D. both of Fig. 2
Fig. 5, is a side elevation.
Referring to the said figures-a a¹ are doors of combined ovens, a³, being
brass beads thereto, a hinges and a drop latches, as is a heating space for gas
partially enclosed, b, bare partitions or spaces constituting a water jacketting to
the ovens, indicates a cistern for automatic supply of water to the hollow sides
shelves or spaces bb simply by gravitation or under pressure from towns' supply
or other means; d, d indicate pipes leading from urns not shown containing
alimentary fluid or to be retailed or supplied out by taps or duplex mixing taps.
Such taps may be taken to be represented at d, d, of Figs. 1 and 2, and may
supply for instance and respectively coffee, hot water, milk and tea or cocoa.
The oven spaces may be used for cooking or for heating purposes according as
circumstances may demand.
The mere design of these ovens urns and means of supply may of course vary
without departing from the essential character of the invention thus for instance
but one oven might be furnished in combination with the other parts of the
appliance or three or more ovens might be provided.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1st. The ovens with supply of water for jacketting the same automatically
supplied constructed and combined as and for the purpose herein set forth and
shown by the drawings.
2nd. The construction and combination of means for boiling or heating auto-
matically supplied water, with urns or vessels for tea or coffee as and for the
purpose herein set forth.
3rd. The combination with ovens of the jacketting water casing for the auto-
matically supplied water, and the alimentary Huid urns or vessels as and for the
purpose specified.
Dated this 20th day of November 1891.
HUGHES, ELI & HUGHES,
76, Chancery Lane, W.C., Agents for Applicant.