AN IMPROVED MILL FOR GRINDING CORN AND OTHER GRAIN."
Year: 1855

page_text: LETTERS PATENT to Thomas Moore, of Retford, in the County of Notting-
ham, Engineer, for the Invention of "AN IMPROVED MILL FOR GRINDING
CORN AND OTHER GRAIN.""".
Sealed the 4th April 1856, and dated the 12th October 1855.
PROVISIONAL SPECIFICATION left by the said Thomas Moore at the
Office of the Commissioners of Patents, with his Petition, on the 12th
October 1855.
I, THOMAS MOORE, of Retford, in the County of Nottingham, Engineer," do
hereby declare the nature of the said Invention for "AN IMPROVED MILL FOR
GRINDING CORN AND OTHER GRAIN" to be as follows:-
My Invention consists in combining in one mill steel and stone grinding
surfaces. I form the first and upper grinding surface of a vertical steel cone,
which revolves in a correspondingly shaped fixed cone, and below these cones
I fit horizontally ordinary grindstones. The corn or other grain is fed into
and between the steel cones from a hopper, and in its passage through them
becomes very quickly bruised and converted into meal, for which purpose it is
well known that steel mills are better adapted than stones. After being so
converted, the meal falls between the horizontal grindstones; which reduce the
meal into flour: The great advantages consist in appórtioning each of the'
grinding surfaces to perform that portion of the grinding operations to which
they are best adapted, the steel for converting the grain into meal; and the
stones the meal into flour.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Moore in the Great Seal Patent Office on the
12th April 1856.
TO ALL. TO WHOM THESE PRESENTS SHALL. COME, I, THOMAS
MOORE, of Retford, in the County of Nottingham, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria; by Her Letters
Patent, bearing date the Twelfth day of October, 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 Thomas Moore, Her special licence that I, the said Thomas Moore, my
executors, administrators, and assigns, or such others as I, the said Thomas
Moore, 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 "AN IMPROVED MILL. FOR GRIND-
ING CORN AND OTHER GRAIN," upon the condition (amongst others) that I, the
said Thomas Moore, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, 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 Moore; do hereby declare the
nature of my 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, reference being had to the Drawings hereunto annexed,.
that is to say:-
My Invention consists in combining in one mill steel and stone grinding
surfaces. I form the first and upper grinding surface of a vertical steel cone,
which revolves in a correspondingly shaped fixed cone, and below these cones
I fit horizontally ordinary grindstones: The corn or other grain is fed into
and between the steel cones from a hopper, and in its passage through them
becomes very quickly bruised and converted into meal, for which purpose it is
well known that steel mills are better adapted than stones. After being so
converted, the meal falls between the horizontal grindstones, which reduce the
meal into flour. The great advantage consists in apportioning each of the
grinding surfaces to perform that portion of the grinding operations to which

page_text: they are best adapted, the steel for converting the grain into meal, and the
stones the meal into flour.
In the Drawing annexed I have shewn a sectional elevation of my improved
mill, set upon a carriage for the sake of portability. A, A, is the framework;
B, the hopper; C, a fixed cone, with teeth on the inside; D is a revolving
cone, with teeth on the outside, which works inside the fixed cone C. The
cone D is keyed to the shaft E, supported at bottom in a cup a, in an adjust-
able lever F. G is a bed for the running stone, made fast on the shaft so as
to be supported upon and revolve freely with it; H is the running stone; and
I, the fixed stone, held by screws b, b, which take into nuts sunk in the stone;
K is a shoot for directing the meal into the stones and for admitting air
between them; L is a regulator for regulating the feed from the hopper;
M, bevil gearing for driving the shaft E, and with it the running stone and
cone; N, N, carriage for removing the mill from place to place. The cones
and stones are brought closer together or further apart by turning the nut c on
the screwed rod d, connected to the lever F, whereby the shaft E is raised or
lowered. The upper stone is also capable of adjustment by turning the nuts
d, d, or the screws b, b, whereby this stone is raised or lowered.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim the improved mill,
herein-before described, and represented in the Drawing annexed, in which
grain to be ground is first bruised or broken between a revolving and fixed
cone, and is then ground into flour or reduced to powder by a pair of mill
stones.
In witness whereof, I, the said Thomas Moore, have hereunto set my
hand and seal, this Fourth day of April, One thousand eight hundred
THOMAS MOORE. (L.S.)