IMPROVEMENTS IN COFFEE MACHINES
Year: 1884

page_text: I, LEOPOLD HAMEL of 42 Basinghall Street, in the City of London, Commission
Merchant, do hereby declare the nature of my Invention for IMPROVEMENTS IN
COFFEE MACHINES to be as follows:-
The machine consists of two small tanks or vessels, one of which may for
convenience be placed at the top of the machine, and the other at the lower part,
but will here be described as upper or lower tank. Between these tanks I place a
coffee roaster connected with a coffee grinder turned either by hand or machinery;
the coffee when ground emptying in a vessel or box, with the necessary opening
for the boiling water or steam to pass in, and percolators through which the liquid
passes out. Beneath the roaster is attached a gas pipe, or a vessel for spirits of
wine, and beneath the vessel or box containing the ground coffee a gas pipe or
vessel for spirits of wine is also attached, and between the vessel or box, containing
the ground coffee, and such gas pipe or saucer for spirits of wine, another pipe is
coveyed which is attached to the upper tank, and a second one leading to the
lower tank.
The upper tank is filled with cold water, which is led through the upper piping
conveyed to the box, with the ground coffee, and heated by gas or spirit of wine.
When the water is heated it will pass through the ground coffee, and through the
percolators and is thus by the lower pipe convoyed to the lower tank.

page_text: COMPLETE SPECIFICATION.
I LEOPOLD HAMEL of 42 Basinghall Street, in the City of London, Commission
Merchant do hereby declare the nature of my Invention for my IMPROVEMENTS IN
COFFEE MACHINES, and in what manner the same is to be performed, to bo
particularly described and ascertained in and by the following statement :-
The invention consists of the combination of a coffee roaster and grinder either
with or without a coffee brewer attached thereto. The raw or green coffee beans
are placed in the roaster which is turned either by hand or by machinery, and the
beans are thereby caused to pass gradually into the grinder, which is also turned
by means of bevel wheels or other mechanical contrivances simultaneously with
the roaster. The roasted and ground coffee passes from the grinder into a loose
box or other suitable receptacle placed below it. The brewer may consist of two
compartments or tanks, the one being placed at the upper, and the other at the
lower part of the machine. The lower compartment or tank is used for the purpose
of boiling the water and may be fed by an outside pipe and is heated by a gas
burner or otherwise. The same source of heat may also be used simultaneously for
heating the roaster. The lower compartment or tank is connected with the upper
compartment or tank by means of a tube or pipe. In the other compartment or
tank may be placed a loose box, or receptacle similar to the one into which the
roasted and ground coffee passes from the grinder and to which one or more
-percolators are-attached. When the water in the lower compartment or tank boils
it is forced through the tube or pipe connecting the lower and upper compartments
or tanks, into the loose box or receptacle in which the ground coffee is placed and
then through the percolators into the upper compartment or tank Or the water
when it boils may be conveyed by means of a tube or pipe in such a manner as to
drop upon the ground coffee placed either upon a fixed percolator or in one or more
loose receptacles or boxes having percolators either with or without the fixed
percolator. The boiling water after passing through the ground coffee and percolator
passes again into the lower compartment or tank, and will be continually forced
through the ground coffee, and back into the lower compartment or tank so long
as the water is kept boiling, and in this way the whole strength of the coffee may
be extracted. The lower compartment or tank of the brewer being capable of
being fed with water by means of an outside pipe and the loose boxes or receptacles
in the upper compartment or tank upon which the coffee is placed, being capable of
being replaced with freshly roasted and ground coffee an unlimited quantity of
coffee liquor may be brewed with but little extra trouble. An arrangement or
combination by which my invention may be carried out is shown by Figs 1 and 2.
By Fig 1, is shown the combination of a coffee roaster and grinder without a coffee
brewer attached thereto in which A is the coffee roaster turned by the handle H
and B the coffee grinder turned by means of the wheels CC simultaneously with
the roaster. D is the loose box or receptacle into which the ground coffee passes.
By Fig 2 is shown the combination of a coffee roaster and grinder with a brewer
attached thereto in which A is the coffee roaster turned by the handlo H. B the
coffee grinder turned by means of the wheels C C simultaneously with the roaster,
D is the loose box or receptacle into which the ground coffee passes. E is the lower

page_text: compartment or tank of the brewer used for boiling and fed by an outside pipe H.
and is heated by the gas burner F by which the roaster is also simultaneously
heated.
The lower compartment or tank E is connected by means of the tube.or pipe G
with the upper compartment or tank K in which is placed the loose box or
receptacle D to which a percolator is attached. L is a tap from which the coffee
liquor may be drawn as required.
By Fig 3 is shown a section of the whole machine; A. being the roaster; E the
boiler; F the burner; G. the pipe, or tube through which the water when boiling
rises upwards through the box or receptacle D containing the ground coffee; K is
the receptaclo for the coffee liquid dropping from box D; L is the tap for drawing
off the waste water and for cleaning purposes; M is the tap drawing off the liquid
coffee; N is a pipe by which the water circulates from one side of the brewer to
the other.
Fig. 4. shows the inside of the Box or receptacle D; O being a loose percolator;
and Fig. 5 shows the upper portion, with percolator of the Box D.
Fig 6 is the screw for screwing down percolators, of Box or receptacle D.
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
1. The combination of a roaster, grinder and brewer for the purposo of
simultaneously roasting grinding and brewer coffee liquor in one machine.
2. The combination of a roaster and grinder for the purpose of simultaneously
roasting and grinding coffee in one machine.
"
L 1
1004