IMPROVEMENTS IN THE TREATMENT OF WHEAT, AND IN THE MANUFACTURE OF WHEATEN SEMOLINA, MEAL, AND FLOUR.
Year: 1878

page_text: 15
LETTERS PATENT to Thomas Muir, of Glasgow, in the County of Lanark,
Merchant Miller, for the Invention of IMPROVEMENTS IN THE TREATMENT OF
WHEAT, AND IN THE MANUFACTURE OF WHEATEN SEMOLINA, MEAL, AND
FLOUR.
"
Sealed the 14th May 1878, and dated the 7th March 1878.
PROVISIONAL SPECIFICATION left by the said Thomas Muir at the Office of
the Commissioners of Patents on the 7th March 1878.
IM-
THOMAS MUIR, of Glasgow, in the County of Lanark, Merchant Miller.
PROVEMENTS IN THE TREATMENT OF WHEAT, AND IN THE MANUFACTURE OF WHEATEN
SEMOLINA, MEAL, AND FLOUR"
The object of my Invention is to obtain from wheat grains a large increase of
fine or first quality semolina, or meal, or flour, the product in each case being
rendered, by the use of my improved method of treatment, more free from impu-
rities than has been practicable by methods hitherto adopted. For that purpose I
effectually remove the fine brown powder which adheres near to the germ, and is
found in and alongside the cleft of the grain.
In carrying my Invention into practice I crack the grains (usually after sizing
them in the ordinary way) between millstones or rolls, and subject the cracked
pieces, by preference after sifting out by reels or otherwise the flour incidental to
the first breaking to the scrubbing or cleaning action of a rotating or other brush
or like mechanical contrivance. By this method of treatment the said fine brown
powder is effectually detached from the cracked pieces and separated from them.
it may be detached and separated after the grains have been subjected to more than
one breaking.
my
The mechanism which I have found to answer the purpose of Invention con-
sists of a cylindrical or conical brush made to rotate within a perforated or open-
work case. Upon feeding the cracked grain into the case by suitable openings the

page_text: action of the rotating brush detaches the brown powder, and at the same time dis-
charges it through the casing, thereby ensuring that the cracked grains are delivered
by themselves. After the separation of the said fine brown powder by the means
described, the resulting cleaned wheat grains are, in any ordinary way, reduced to
the state of semolina, or meal, or flour.
My Invention further consists in so treating the broken grains after they are
cleaned and separated from the said fine brown powder, or during the separation of
such brown powder, that the germs of the grains are separated from the fleshy or
farinaceous parts under the Invention for which Letters Patent, No. 2560, of the
year 1875, were granted to me.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Muir in the Great Seal Patent Office on the 5th September
1878.
THOMAS MUIR, of Glasgow, in the County of Lanark, Merchant Miller.
"IM-
PROVEMENTS IN THE TREATMENT OF WHEAT, AND IN THE MANUFACTURE OF WHEATEN
SEMOLINA, MEAL, AND FLOUR."
The object of my Invention is to obtain from wheat grains a large increase of
fine or first quality semolina, or meal, or flour, the product in each case being
rendered, by the use of my improved method of treatment, more free from impu-
rities than has been practicable by methods hitherto adopted. For that purpose I
effectually remove the fine brown powder which adheros near to the germ, and is
found in and alongside the cleft of the grain.
In carrying my Invention into practice I crack the grains (usually after sizing
them in the ordinary way) between millstones or rolls, and subject the cracked
pieces, by preference after sifting out by reels or otherwise the flour incidental to
the first breaking, to the scrubbing or cleaning action of a rotating or other brush
or like mechanical contrivance. By this method of treatment the said fine brown
powder is effectually detached from the cracked pieces and separated from them.
It may be detached and separated after the grains have been subjected to more than
one breaking.
The mechanism which I have found to answer the purpose of my Invention con-
sists of a cylindrical or conical brush or equivalent made to rotate within a per-
forated or openwork case. Upon feeding the cracked grain into the cast by suitable
openings the action of the rotating brush detaches the brown powder, and at the
same time discharges it through the casing, thereby ensuring that the cracked grains
are delivered by themselves. After the separation of the said fine brown powder
by the means described, the resulting cleaned wheat grains are in any ordinary way
reduced to the state of semolina, or meal, or flour.
My Invention further consists in so treating the broken grains after they are
cleaned and separated from the said fine brown powder, or during the separation of

page_text: such brown powder, that the germs of the grains are separated from the fleshy or
farinaceous parts under the Invention for which Letters Patent, No. 2560, of the
year 1875, were granted to me.
Having now described my Invention in such manner that others will be enabled
to carry the same into practice, I claim the improvements herein described for the
purposes set forth.
In witness whereof, I, the said Thomas Muir, have hereunto set my hand
and seal, the Fourth day of September, in the year of our Lord One thousand
eight hundred and seventy-eight.
THOMAS MUIR. (L.S.)