IMPROVEMENTS IN FLOUR MILLS
Year: 1865

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and Foreign
Patent Offices, 24, Rue du Mont Thabor, Paris, in the Empire of France,
and 38. Porchester Terrace. Bayswater. in the County of Middlesex,
Patent Agent, for the Invention of "IMPROVEMENTS IN FLOUR MILLS."
-A communication from Charles Simon Olivier Martineau, Narcisse
Justine, and Nicolas François Dumet-Prèvost, residing at Villeneuve, in
the Empire of France, aforesaid.
Patent Agent, for the Invention of "IMPROVEMENTS IN FLOUR MILLS."
-A communication from Charles Simon Olivier Martineau, Narcisse
Justine, and Nicolas François Dumet-Prèvost, residing at Villeneuve, in
the Empire of France, aforesaid.
Sealed the 3rd November 1865, and dated the 15th May 1865.
COMPLETE SPECIFICATION filed by the said Henri Adrien Bonneville at
the Office of the Commissioners of Patents, with his Petition and Decla-
ration on the 15th May 1865, pursuant to the 9th Section of the Patent
Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 24, Rue du
Mont Thabor, Paris, in the Empire of France, and 38, Porchester Terrace,
Bayswater, in the County of Middlesex, Patent Agent, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN FLOUR
MILLS," communicated to me by Charles Simon Olivier Martineau, Narcisse
Justine, and Nicolas François Dumet-Prevost, persons residing at Villeneuve,
in the Empire of France, aforesaid, and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, Her Royal Letters Patent
for the same, and have made solemn Declaration that it is a communication.

page_text: NOW KNOW YE, that I, the said Henri Adrien Bonneville, do hereby
declare that the following Complete Specification under my hand and seal, fully
describes and ascertains the nature of the said Invention, and the manner in
which the same is to be performed, reference being had to the accompanying
Drawing, and to the figures and letters marked thereon, that is to say:
This Invention relates to certain improvements in cooling and aërating the
stones of flour mills, by means of which the yield of grain is increased, and the
heating of flour is prevented. Independently of this double advantage,
the better quality of the flour produced by stones provided with my improved
apparatus allows of obtaining a greater weight of bread from a given quantity
of flour than is at present obtained.
The accompanying Drawings represent an application of the above improve-
ments to a runner.
Fig. 1 is a plan view of the runner, provided with all the apparatus; Fig. 2
is a central and vertical section of the eye of the millstone, with the cylinder
which separates the air passage from the opening by which the grain passes;
Fig. 3 is a separate view of said cylinder; and Fig. 4, separate views of the
aërating tubes. In these Figures the same letters of reference indicate similar
parts.
The improved system consists, see Fig. I and 2, in placing over the
opening of the eye
b a plate a of metal or other suitable substance, and in the
eye a metal or other cylinder d, open at both ends, the length of which varies
according to the thickness of the runner c. This cylinder is placed astride of
the rynd e by means of two slots (see Fig. 3). The plate a has a central open-
ing of from two two to four inches, more or less, receiving the conduit from
which the grain runs to the lower end of the cylinder d, and from thence under
the runner.
Near the circumference of the eye are formed in said plate three
or more openings 9, 9, 9, communicating with the space existing between the
cylinder and the circumference of the eye, and to which are adapted aërating
tubes;
these tubes, seen in front and side views, Fig. 4, are made funnel-
shaped at their upper ends, and serve for bringing the air from outside. The
rotation of the runner creates a current of air, which, entering by the tubes,
passes between the cylinder d and the eye, and from thence between the
runner and the bed, cooling the flour.
Having thus described the nature of the said Invention, and the manner in
which the same is to be performed, what I claim is, the aëration and
cooling of flour millstones by closing the eye of the runner with a metallic or
other plate, and placing in said eye a cylinder, through which the grain falls
on the bed, together with openings, to which are adapted funnel-shaped

page_text: aërating tubes for bringing the outer air between the cylinder and the eye,
and from thence with the grain between the grinding surfaces of the stones,
substantially as above described, and represented in the accompanying
Drawings.
In witness whereof, I the said Henri Adrien Bonneville, have hereunto
set my hand and seal, this Eighth day of May, in the year of our
Lord One thousand eight hundred and sixty-five.
H. BONNEVILLE. (L. s.)