Improvements in Mills for Bruising Grain.
Year: 1895

page_text: Improvements in Mills for Bruising Grain.
I, VICTOR CHAPELLIER, of Ernée (Mayenne) in the Republic of France;
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in bruising mills for coarsely grinding
grain.
According to my invention I provide the two crushing cylinders or rollers with
grooves around their peripheries the said grooves having in cross section approxi-
mately the shape of a truncated cone and the grooves on one roller being adapted
to gear with the projections formed by the grooves on the other roller thereby
enabling the larger roller to be driven by the smaller thus reducing the power
required to drive the mill. The smaller roller is mounted in bearings fixed to
the frame of the mill whilst the larger roller is mounted in movable bearings
adapted to be adjusted in position by rods, a spring and an adjusting screw.
All lateral movement of the rollers is prevented by the engagement of the
grooves and projections on the same.
The mill is provided with the usual hopper and with a feed or distributing roller
driven by a chain or otherwise.
The grooves are cleaned out by comb shaped scrapers, the scraper provided for
the larger roller being preferably furnished with a counterweight.
All long grains, such as wheat, oats, rye and the like, pass lengthwise into the
grooves on the cylinders and instead of being crushed transversely they are
therefore crushed longitudinally. By this means the flour remains enveloped in
the husk which on issuing from the machine resembles an elongated empty shell.
The shape of these grains compels animals to masticate them completely thereby
aiding digestion.
Dated the 25th day of June 1805
Improvements in Mills for Bruising Grain.
I, VICTOR CHAPELLIER, of Ernée (Mayenne) in the Republic of France,.
Engineer, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention relates to improvements in bruising mills for coarsely grinding
grain.
In the accompanying drawings,
Figure 1 is an elevation of a bruising mill constructed according to my

page_text: Figure 4 is a view shewing the two cylinders or rollers of the mill on an enlarged
scale:
Figure 5 is a section shewing the manner in which the two rollers gear with one
another.
According to my invention I provide the two crushing cylinders or rollers C, C+
with grooves around their peripheries the said grooves having in cross section
approximately the shape of a truncated cone and the grooves on one roller being
adapted to gear with the projections formed by the grooves on the other roller
thereby enabling the larger roller C¹ to be driven by the smaller C thus reducing
the power required to drive the mill. The smaller roller C is mounted in bearings
fixed to the frame of the mill whilst the larger roller C₁ is mounted in movable
bearings adapted to be adjusted in position by rods H, H', a spring R and an
adjusting screw V, so that the pressure exerted by the rollers on the grain can be
regulated as desired.
All lateral movement of the rollers C, C' is prevented by the engagement of the
grooves and projections on the same.
The mill is provided with the usual hopper T having an adjustable door or
valve G and with a feed or distributing roller D driven by a chain K actuated by
a chain wheel on the axle of the large roller C¹.
The grooves are cleaned out by comb shaped scrapers P, P₁ the scraper P¹
provided for the larger roller being furnished with a counterweight as shewn.
All long grains, such as wheat, oats, rye and the like, pass lengthwise into the
grooves on the cylinders and instead of being crushed transversely they are therefore
crushed longitudinally. By this means the flour remains enveloped in the husk
which on issuing from the machine resembles an elongated empty shell. The shape
of these grains compels animals to masticate them completely thereby aiding
digestion.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is: --
'
1. In mills for bruising grain the arrangement of two cylinders or rollers of
different diameters having around their peripheries grooves which in cross section
have the form of a truncated cone, the said rollers engaging with one another
substantially as, and for the purposes, hereinbefore described.
2. In a bruising mill of the kind described mounting the larger roller in bearings
adjustable by means of rods, and of a spring, substantially as, and for the purpose,
herein before described.
3. In a mill for bruising grain having two grooved rollers of different diameters
and a hopper for feeding the grain between the rollers, the arrangement of a
distributing or feeding roller actuated by a chain driven from a chain wheel on the
axle of the large roller substantially as described.
4. The manufacture and use of the improved mill for bruising grain hereinbefore
described and illustrated in the accompanying drawings.
Dated the 24th day of March 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.