IMPROVEMENTS IN APPARATUS FOR ROASTING MALT
Year: 1854

page_text: LETTERS PATENT to Thomas James Johnson, of 19, Booth Street, Spitalfields,
for the Invention of "IMPROVEMENTS IN APPARATUS FOR ROASTING MALT."
PROVISIONAL SPECIFICATION left by the said Thomas James Johnson
at the Office of the Commissioners of Patents, with his Petition, on the
28th February 1854.
I, THOMAS JAMES JOHNSON, of 19, Booth Street, Spitalfields, do hereby
declare the nature of my Invention for "IMPROVEMENTS IN APPARATUS FOR
ROASTING MALT" to be as follows:-
This Invention consists of improvements in the apparatus used for roasting
malt when heated air is used. For this purpose a chamber is constructed,
into which the heated air is forced from the, heating apparatus.. The upper
part of this chamber is enclosed by à semi-cylindrical cover, all but at an
opening to let out the heated air and the products from the malt under process.
Within the chamber a cylinder revolves on a suitable axis, the periphery of
such cylinder being composed of woven wire cloth, and through the cylinder
there are several tubes of wire cloth, by which arrangement the heated air
passes from the chamber into the cylinder, not only by reason of the reticulate
character of its periphery, but also by reason of the reticulate character of
the tubes passing through the cylinder, and such tubes will also act beneficially
by dividing the mass of malt under process...
0
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas James Johnson in the Great Seal Patent Office on
the 24th August 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
JAMES JOHNSON, of 19, Booth Street, Spitalfields, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of February, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Thomas James Johnson, Her special licence that I, the said Thomas
James Johnson, my executors, administrators, and assigns, or such others
as I, the said Thomas James Johnson, 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
"IMPROVEMENTS IN APPARATUS FOR ROASTING MALT," upon the condition (amongst
others) that I, the said Thomas James Johnson, 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 Thomas James Johnson, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement thereof (that is to say):-
This Invention consists of improvements in the apparatus used for roasting
malt when heated air is used. For this purpose a chamber is constructed, into
which the heated air is forced from the heating apparatus. The upper part of
this chamber is enclosed by a semi-cylindrical cover, all but at an opening to
let out the heated air and the products from the malt under process. Within
the chamber a cylinder revolves on a suitable axis, the periphery of such
cylinder being composed of woven wire cloth, and through the cylinder there
are several tubes of wire cloth, by which arrangement the heated air passes
from the chamber into the cylinder, not only by reason of the reticulate
character of its periphery, but also by reason of the reticulate character of the
tubes passing through the cylinder, and such tubes will also act beneficially by
dividing the mass of malt under process.
Having thus described the nature of my said Invention, I will proceed to
describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.

page_text: Figure 2 shews a front elevation thereof, both Figures being shewn partly
in section, in order that the internal arrangement and construction may be
more fully seen and readily understood. This apparatus consists of a cylinder
on an axis h, the ends of which cylinder are closed, except where tubes or
passages a, a, are fixed therein, and these tubes are made of woven wire cloth,
so that the highly heated air introduced into the enclosed chamber within
which the cylinder revolves may pass freely into the interior of the cylinder
through the reticulate or perforated pipes or passages a, a. The periphery of
the cylinder is also made of wire cloth, so that the heated air may also pass
through the periphery of the cylinder, and the heated vapours from the malt
may also pass off there through the end of the axis h is hollow, and there is.
an opening into which the malt may and flows out of the hollow part of the
axis when it is not stopped, by which means a sample of the malt may be
taken from time to time; c is a slide which covers an opening into the
cylinder; c, c, are doors in the fixed casing above the cylinder, by which
the cylinder can be charged or filled with målt; fis the pipe through which
highly heated air is passed into the chamber in which the cylinder revolves;
g is a slide to regulate the supply; e is an outlet for the heated air charged
with vapour and products from the malt; d is a slide at the lower part of the
chamber; through the opening which this slide covers the contents of the
cylinder is discharged when the roasting has been completed and the slides
c and d opened. I would remark that I am aware that a cylinder with
reticulate periphery has before been used for roasting malt, but in such case
there was no reticulate passages or tubes a, a; I do not therefore claim the
use of such a cylinder; but what I claim is, the application of a cylinder, with
passages a, a, combined with a chamber supplied with heated air for roasting
malt as herein described.
In witness whereof, I, the said Thomas James Johnson, have hereunto
set my hand and seal, this Twenty-first day of August, in the year of
our Lord One thousand eight hundred and fifty-four.
Witness,
THOS JOHNSON,
Witham, Essex.
THOMAS JAMES JOHNSON. (L.S.).