IMPROVEMENTS IN APPARATUS FOR ROASTING COFFEE
Year: 1855

page_text: LETTERS PATENT to Theodore Bougereau, of 46, Lime Street, for
Invention of "IMPROVEMENTS IN APPARATUS FOR ROASTING COFFEE."
PROVISIONAL SPECIFICATION left by the said Theodore Bougereau at
the Office of the Commissioners of Patents, with his Petition, on the
21st June 1855.
I, THEODORE BOUGEREAU, of 46, Lime Street, do hereby declare the nature
of the Invention for "IMPROVEMENTS IN APPARATUS FOR ROASTING COFFEE" to be
as follows:-
Heretofore the apparatus used for roasting coffee has been of a cylindrical
form, presenting in its rotation only its periphery to the fire. Now, my Inven-
tion consists of applying a spherical in place of a cylindrical apparatus, and of
giving to such spherical apparatus a rotatory motion about a horizontal axis,
and also at the same time a rotatory motion about a vertical axis. For this
purpose the horizontal axis of the spherical-apparatus turns in bearings carried
by a moveable horizontal circular ring, which is supported in a suitable fixed
frame or circular tract. This circular frame is made with teeth, into which a
toothed wheel on a crank axis gears, by which rotatory motion to the circular
rack is obtained; and by reason of there being toothed wheels fixed on the
horizontal axis of the sphere which takes into a fixed circular rack, rotatory

page_text: motion is communicated to the sphere on its horizontal axis, at the same time
that its horizontal axis is performing a rotatory motion around the vertical axis
of the sphere.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Theodore Bougereau in the Great Seal Patent Office on
the 21st December 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THEODORE
BOUGEREAU, of 46, Lime Street, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of June, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Theodore Bougereau, Her special licence: that I, the said Theodore
Bougereau, my executors, administrators, and assigns, or such others as I, the
said Theodore Bougerean, my executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE
MENTS IN APPARATUS FOR ROASTING COFFEE," upon the condition (amongst others)
that I, the said Theodore Bougereau, by an instrument in writing under my
hand and seal, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Theodore Bougereau, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and. ascertained in and by the following
statement thereof (that is to say):-
Heretofore the apparatus used for roasting coffee has been of a cylindrical
form, presenting in its rotation only its periphery to the fire. Now, my Inven-
tion consists of applying a spherical in place of a cylindrical apparatus, and of
giving to such spherical apparatus a rotatory motion about a horizontal axis,
and also at the same time a rotatory motion about a vertical axis. For this
purpose the horizontal axis of the spherical apparatus turns in bearings carried
by a moveable horizontal circular ring, which is supported in a suitable fixed
frame or circular track. This circular frame is made with teeth, into which a

page_text: toothed wheel on a crank axis gears, by which rotatory motion to the circular
rack is obtained; and by reason of there being toothed wheels fixed on the
horizontal axis of the sphere which take into a fixed circular rack, rotatory
motion is communicated to the sphere on its horizontal axis, at the same time
that its horizontal axis is performing a rotatory motion around the vertical
axis of the sphere.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawing hereunto
annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a plan, and Figure 2 a side elevation, partly in section, of
the apparatus. A is the hollow sphere into which the coffee to be roasted is
placed; B, B, are axes or trunnions on which the sphere is mounted, and ~
which turn in bearings attached to the ring C. This ring is mounted on-
friction pullies, and supported by the circular frame D (shown in section at
Figure 2), which is bolted on to the uprights E; on the upper surface of the
ring C teeth are formed, into which the toothed wheel F works; there is a ✓
groove in the frame D, in which the friction pullies on the ring C run.
On the axes or trunnions B, B, of the sphere, toothed wheels G, G, are fixed,
which, as the sphere rotates on its vertical axis, take into the teeth of the
circular fixed rack H, and thus give to the sphere at the same time a rotation
about its horizontal axis.
In witness whereof, I, the said Theodore Bougereau, have hereunto set
my hand and seal, this Twenty-first day of December, in the year
of our Lord One thousand eight hundred and fifty-five.
-
Witness,
GEORGE GAMBLE, Solicitor,
10, Gray's Inn Square.
THEODORE BOUGEREAU. (L.S.)