IMPROVEMENTS IN GRINDING WHEAT AND OTHER GRAIN
Year: 1853

page_text: LETTERS PATENT to George Young, of Neath, South Wales,
Merchant, for the Invention of "IMPROVEMENTS IN GRINDING
WHEAT AND OTHER GRAIN."
Sealed the 8th September 1853, and dated the 18th June 1853.
PROVISIONAL SPECIFICATION left by the said George Young at
the Office of the Commissioners of Patents, with his Petition,
on the 18th June 1853.
I, GEORGE YOUNG, of Neath, South Wales, Merchant, do hereby
declare the nature of the said Invention of "IMPROVEMENTS IN GRINDING
WHEAT AND OTHER GRAIN" to be as follows:-
This Invention consists of a peculiar arrangement or combination of
apparatus for ventilating mill stones. A double tube is fixed in the
eye of the upper mill stone, on the upper end of which double tube
are fixed trumpet mouthed blowers, which by the rotation of the stone
drive air into the double tube, and cause it to pass between the
grinding surfaces. And in order that the air may not pass back a
conical leather or other packing is applied to the upper end of the
double tube, through and within which the supply pipe passes and

page_text: rotates; and with a view to prevent the air passing into the case of the
mill stones or conical leather or other packing is used. In addition
to the air being forced in between the grinding surfaces, the air is also
withdrawn from the case of the mill stones, to which, however, no
claim is separately made.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Young in the Great Seal Patent Office,
on the 17th December 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
GEORGE YOUNG, of Neath. Sonth Wales, Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighteenth day of June, in the year
of our Lord One thousand eight hundred and fifty-three, in the sixteenth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said George Young, Iler special licence that I,
the said George Young, my executors, administrators, and assigns, or
such others as I, the said George Young, my exccutors, administra-
tors, 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 GRINDING
WHEAT AND OTHER GRAIN," upon the condition (amongst others) that
I, the said George Young, 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 per-
formed, 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 George Young, 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):

page_text: This Invention consists of a peculiar arrangement or combination of
apparatus for ventilating mill stones. A double tube is fixed in the
eye of the upper mill stone, on the upper end of which double tube
are fixed trumpet mouthed blowers, which by the rotation of the stone
drive air into the double tube, and cause it to pass between the
grinding surfaces. And in order that the air may not pass back a
conical leather or other packing is applied to the upper end of the
double tube, through and within which the supply pipe passes and
rotates; and with a view to prevent the air passing into the case of the
mill stones a conical leather or other packing is used. In addition
to the air being forced in between the grinding surfaces, the air is also
withdrawn from the case of the mill stone, to which, however, no
claim is separately made.
Having thus stated the nature of my said Invention, I will proceed
to describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1, shows a vertical section of a pair of mill stones and appa-
ratus arranged and combined according to my Invention. Figure 2, is
a plan of the air collecting apparatus, which revolves with the upper
stone. a, is the bed stone; b, the upper stone, which is driven in the
ordinary manner. In the eye of the upper stone is fixed an apparatus
for collecting air and causing it to descend to the opening or space
between the mill stones. This apparatus consists of two concentric
tubes c, d, fixed in the eye of the upper mill stone. These tubes c, d,
are connected together; the space between them is open at bottom,
and at the top ends they carry open heads e, e, which collect the air,
and cause it to descend down between the tubes c, d. I would state
that I am aware that instruments very similar to those shown at e, e,
have before been applied to mill stones for collecting air, and for pro-
pelling it between them, but in such cases they have been combined
with other and different parts than those herein described; I do not
therefore claim the parts e, e, separately. At the upper part of the
tube d, is a conical tube of leather or other suitable material f, to
prevent the air ascending and passing away in that direction; y, is the

page_text: tube and funnel through which the grain to be ground passes; h, is a
conical leather or other suitable material fixed at its upper end to the
cover or case of the mill stones; i, is a conical tray of metal fixed to
the outside of the tube c, and it is by means of the parts h, and i, that
air is prevented passing from the exterior into the interior of the hoop
or case of the mill stones; j, is a pipe or passage leading from the
case or hoop of the mill stones to the trunk or passage k, from which
another trunk or passage passes to the fan 7, by which means air and
the "stive" is conveyed away from the case of the mill stones into a
room for the stive to settle in. I would state that I am aware that
it is not new to withdraw air from the case of mill stones, and to
propel by a fan or other apparatus the stive and air from the case into
a room or receiver. I do not therefore claim the same.
Having thus described the nature of my Invention, and the manner
of performing the same, I would have it understood that I make no
claim to any of the parts separately, nor do I confine myself to the
precise details shewn and described so long as the peculiar character
of my Invention be retained. But what I claim is, the combination of
parts c, d, e, f, h, i, applied to mill stones, and, combined therewith,
the use of apparatus to withdraw air from the case of mill stones.
In witness whercof, I, the said George Young, have hereunto
set my hand and seal, this Thirteenth day of December, in the
year of our Lord One thousand eight hundred and fifty-three.
Witness,
HENRY WILLIAMS,
of Neath.
GEORGE YOUNG. (L.S.)