Year: 1899

page_text: We, LEOPOLD THEODORE VICTOR SOMMAIRE and Madame THÉRÈSE MALEN née
HOURY, both of 95, Boulevard Beaumarchais, Paris, in the Republic of France,
do hereby declare the nature of this invention to be as follows:-
The present invention relates to an improved coffee or like infusing apparatus
by means of which an infusion can be produced varying as regards quantity and
degree of concentration according to requirements.
In order to render the description as clear as possible the invention will
be described by way of example as applied to a coffee infuser or pot.
The apparatus, forming the object or the present application, consists essen-
tially of a receiving outer vessel provided with a handie by means of which it
can be carried or moved. This receiving vessel is provided at its lower part
with a vertical tube or conduit having a perforation or perforations in its
side, perpendicularly arranged to the axis of the conduit. Within, but not
filling, this receiving vessel is arranged a filter provided at its upper edge with a
flange by means of which it rests upon the edge of the receiving vessel.
The filter is provided on its underside with a tubular extension or plug which
has no direct communication whatever with the interior of the filter. It has the
form of a kind of hollow metallic projection also provided with a hole which, as
will be seen hereafter, can be made to coincide with the hole in the outer vessels
tube, into which the plug fits. The filter is provided on its flange with a doubly
bent wire forming stops.
The apparatus works as follows:-
In the filter the necessary quantity of material, say coffee, is placed. Boiling
water is then poured in after having placed the apparatus in a receiving vessel
of any kind, such as a glass, cup or the like. Of course during the period of in-
fusion the lid of the apparatus should be in its place. The boiling water passes
through the coffee and gradually fills the inner space between the filter and
its outer vessel. When the infusion is supposed to be of sufficient strength,
pressure is exerted by the hand on the bent wire, solidly connected with the
filter and which acts as a handle, in such a manner that the filter is turned
hrough a certain angle round its vertical axis. This turning is done with the
object of bringing the two holes into coincidence; this being obtained the coffee
nfusion contained in the outer vessel will escape through the holes and the
[Price 8d1

page_text: tnbular plug into the receiving vessel placed under the apparatus. When this
receiving vessel is full, or when a sufficient quantity of coffee has been supplied,
the flow of the latter is stopped by turning the filter in the reverse_way. The
flow of coffee will then stop as soon as the holes cease to coincide. In order to
facilitate the correct extent of turning the filter, the handle of the outer vessel
can be so formed that it comes in contact with one or other of the stops, formed
by the bent ends of the wire secured to the filter flange, when the holes coincide
or are completely moved out of alignment respectively.
Of course the same apparatus will serve for infusion of any kind, such as of
tea, aromatic plants, and the like.
Such apparatus which, as has been explained above, can be employed in com-
bination with an outer recipient of any kind, may also be combined with its
own receiving vessel thus forming a complete apparatus containing a reserve of
coffee or other material.
It consists essentially of a lower vessel containing water, surrounded on all
sides by another vessel or casing in which the coffee or infusion is introduced
from the upper vessel or infuser. A cock is provided for pouring. A hollow
pedestal or base also contains water. The apparatus may be emptied by means
of a cock in said base while another cock serves to establish a communication
when required between the lower, outer and inner vessels. In the centre is
arranged a vertical tube which communicates with the base and is provided with
a cock which can be operated from outside by means of a handle. Above this
arrangement of vessels is placed an apparatus similar to the one previously
described. It consists of an outside receiver or vessel within which is arranged
a filter vessel. A central tube passes through both the outer vessel and the filter,
and fits the lower central tube forming an extension. A cock serves to estab-
lish a communication between the upper outer vessel and the lower outer vessel
or chamber.
The apparatus works in the following manner:-
The lower inner vessel and the base are supplied with water, before the upper
apparatus is placed in position. After having fixed the upper vessel in position
the material, say coffee, is placed in the filter and a burner or lamp is lit under-
neath the base for the purpose of heating the water.
Before the water boils the handle is turned in a manner so as to open the cock
of the central tube. Owing to the pressure produced in the boiler vessel the
boiling water will rise in the tube and issue from the upper part, which for this
purpose is provided with a rose or sprayer, from which the boiling water falls
on the powdered coffee placed in the filter. The infusion thus obtained gradually
fills up the upper outer vessel from which it may be run into the lower outer
chamber by opening the communicating cock. When in the latter chamber the
coffee is in constant contact with a hot water bath formed by the inner boiler
vessel and, consequently the coffee is kept hot without however reaching the
boiling point. When coffee is required it is obtained by opening the "pouring-
off" cock. If the infusion obtained is not of the required degree of concentration
it is easy to pass the infusion through the coffee in the filter, by opening the
cock forming the communication between the lower outer and inner vessels,
whereupon the infusion contained in the outer chamber enters the boiler vessel
and thence into the base from which it is driven through the tube on to the coffee
in the filter from which it then returns to the lower outer chamber. By this
means a high degree of concentration is obtained. By means of the draw-off
cock the boiler vessel and the base can be emptied of their contents when
required.
Dated this 4th day of December 1899.
BOULT, WADE & KILBURN,
Agents for the Applicants.

page_text: Improvements in or relating to Coffee or like infusing Apparatus.
We, LEOPOLD THEODORE VICTOR SOMMAIRE and Madame THÉRÈSE MALEN née
HOURY, both of 95, Boulevard Beaumarchais, Paris, in the Republic of France,
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 present invention relates to an improved coffee or like infusing apparatus
by means of which an infusion can be produced varying as regards quantity and
degree of concentration according to requirements.
In order to render the description as clear as possible, the invention will be
described by way of example, as applied to a coffee infuser or pot reference being
had to the accompanying drawings.
Figure 1 is an elevation showing the arrangement of a simple form of coffee pot,
Figure 2 is a vertical section showing the inner arrangement of the filter,
Figure 3 is a horizontal section on the line A-B Figure 2.
Figure 4 is a vertical section of the filter separately,
Figure 5 is an elevation of the filter,
Figure 6 is a plan view of the filter,
Figure 7 is a vertical section of the outer vessel in which the filter is placed,
Figure 8 is a horizontal section on line C-D, Figure 7,
Figure 9 represents a modified construction of apparatus by means of which
a continuous production of coffee can be obtained.
The apparatus forming the object of the present application, consists essentially
of a receiving outer vessel a provided with a handle 6 by means of which it can
he carried or moved. This receiving vessel is provided at its lower part with
a vertical tube or conduit e having a perforation or perforations as at d in its
side perpendicularly arranged to the axis of the conduit c. Within but not
filling this receiving vessel a is arranged a filter e provided at its upper edge
with a flange f by means of which it rests upon the edge g of the receiving
vessel a.
The filter e is provided on its underside with a tubular extension or plug h,
which has no direct communication whatever with the interior of the filter. It
has the form of a kind of hollow metallic projection also provided with a hole i
which, as will be seen hereafter, can be made to coincide with the hole d in the
outer vessels tube, into which the plug fits. The filter is provided on its flange f
with a doubly bent wire j forming stops k k.
The apparatus works as follows:-
In the filter e the necessary quantity of material say coffee is placed. Boiling
water is then poured in after having placed the apparatus in a receiving vessel
of any kind, such as a glass, cup or the like. Of course during the period of
infusion the lid of the apparatus should be in its place. The boiling water
passes through the coffee and gradually fills the inner space m between the filter
and its outer vessel a. When the infusion is supposed to be of sufficient strength,
pressure is exerted by the hand on the bent wire j solidly connected with the
filter and which acts as a handle in such a manner that the filter is turned through
a certain angle round its vertical axis a-y. This turning is done with the
object of bringing the hole i in coincidence with the hole d, this being obtained
the coffee infusion contained in the outer vessel will escape through the holes d
and i and the tubular plug h into the receiving vessel placed under the apparatus.
When this receiving vessel is full, or when a sufficient quantity of coffee has been

page_text: supplied the flow of the latter is stopped by turning the filter in the reverse
way. The flow of coffee will then stop as soon as the holes i and d cease to coin-
cide. In order to facilitate the correct extent of turning the filter, the handle
of the outer vessel can be so formed that it comes in contact with one or other
of the stops, formed by the bent ends of the wire secured to the filter flange,
when the holes respectively coincide or are completely moved out of alignment.
Of course the same apparatus will serve for infusions of any kind, such as of
tea, aromatic plants and the like.
Such apparatus which, as has been explained above, can be employed in com-
bination with an outer recipient of any kind, may also be combined with its
own receiving vessel thus forming a complete apparatus containing a reserve of
coffee or other material. This apparatus is represented in Figure 9.
It consists essentially of a lower vessel o, containing water, surrounded on all
sides by another vessel or casing in which the coffee or infusion is introduced
from the upper vessel or infuser. A cock 7 is provided for pouring. A hollow
pedestal or baser also contains water. The apparatus may be emptied by means
of a cock s in said base while another cock t serves to establish a communication
when required between the lower outer and inner vessels and o. In the centre
is arranged a vertical tube which communicates with the base and is provided
at with a cock which can be operated from outside by means of a handle x.
Above this arrangement of vessels is placed an apparatus similar to the one pre-
viously described. It consists of an outside receiver or vessel a within which is
arranged a filter vessel e. A central tube u¹ passes through both the outer vessel a
and the filter e and fits the lower central tube u forming an extension.
A cock y
serves to establish communication between the upper outer vessel a and the
lower outer vessel or chamber p.
The apparatus works in the following manner:-
The lower inner vessel o and the base are supplied with water, before the
upper apparatus a is placed in position. After having fixed the upper vessel a
in position the material, say coffee, is placed in the filter e and a burner or lamp
is lit underneath the base for the purpose of heating the water.
Before the water boils the handle is turned in a manner so as to open the
cock of the central tube. Owing to the pressure produced in the boiler vessel
the boiling water will rise in the tube and issue from the upper part w²,
which for this purpose is provided with a rose or sprayer, from which the boiling
water falls on the powdered coffee placed in the filter c. The infusion thus
obtained gradually fills up the upper outer vessel a from which it may be run into
the lower outer chamber by opening the communicating cock y.
When in the latter chamber the coffee is in constant contact with a hot water
bath formed by the inner boiler vessel o and consequently the coffee is kept hot
without however reaching the boiling point. When coffee is required it is
obtained by opening the pouring-off" cock q. If the infusion obtained is
not of the required degree of concentration, it is easy to pass the infusion through
the coffee in the filter, by opening the cock forming the communication between
the lower outer and inner vessels, whereupon the infusion contained in the outer
chamber p enters the boiler vessel o and thence into the base from which it is
driven through the tube u u¹ on to the coffee in the filter from which it then
returns to the lower outer chamber p. By this means a high degree of concen-
tration is obtained. By means of the draw-off cocks the boiler vessel o and
the base can be emptied of their contents.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is: -
1. An infusing apparatus by means of which it is possible to produce an in-
fusion varying as regards quality and degree of concentration, according to
requirements, comprising a vessel provided at its lower part with a filter surface

page_text: carrying a tubular projecting plug adapted to enter into a similar tubular pro-
jection provided in an outer vessel surrounding the smaller filter vessel, the
inner vessel being capable of being turned relatively to the outer vessel so as
to produce coincidence between holes provided in the respective projecting
tubular parts for the purpose of drawing off the infusion into a receiving vessel
of any desired kind, substantially as described.
2. The combination of an apparatus of. the kind described in Claim 1 with a
fixed receiving vessel for the purpose of automatically producing large quan-
tities of infusion substantially as described.
3. The complete infusion apparatus substantially as described in Figures 1
and 2 or in Figure 9 of the accompanying drawings.
Dated this 17th day of August 1900.
BOULT, WADE & KILBURN,
Agents for the Applicants.