Machinery for Grinding and Sifting Oatmeal.
Year: 1894

page_text: Date of Application, 11th Apr., 1894
Complete Specification Left, 11th Feb., 1895-Accepted, 16th Mar., 1895
PROVISIONAL SPECIFICATION.
Machinery for Grinding and Sifting Oatmeal.
I, EDWARD MATHER, of 121 Fountainbridge, Edinburgh, in the County of
Midlothian, North Britain, 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 machinery for grinding and sifting oatmeal and is more
I employ two
particularly applicable for the production of pinhead oatmeal.
rollers mounted horizontally and working in adjustable bearings supported on a
frame. The rollers may be of chilled iron; or of steel; and they are grooved as
follows. The one roller has its grooves running parallel to its axis; the other
roller has its grooves running in the direction of its rotation, that is to say the
The first referred
grooves are at right angles to each other, or approximately so.
to roller is preferably driven at a higher velocity than the other roller, by any
ordinary deferential gearing or pulleys.
By the said arrangement of grooving of the rollers, pinhead meal is produced with
a minimum of fine or small meal. Above the rollers is mounted an ordinary hopper
with feed roller.
Inside the framing and below the grinding rollers is the sifting machine so that
the whole is a machine complete in itself for both grinding and sifting.
The sifter may consist of an arrangement of shaking or rotatory sieves mounted
horizontally upon a vertical cranked spindle. As the meal is delivered from the
rollers it falls into the upper sieve through which the properly ground meal falls
into a second or lower sieve and is discharged therefrom through a shoot into the
one half of a double fan machine below, to be further purifiel or separated from
the dust or fine meal. The meal which is insufficiently ground, and which does
not pass through the first sieve, is caused to pass therefrom down a shoot into the
other half of the double fanner where it is purified or separated from the seeds or
husks and from thence it is elevated by an ordinary bucket elevator back into the
feed hopper to be passed between the rollers again.
لسد
Amil 1801
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.
Machinery for Grinding and Sifting Oatmeal.
I, EDWARD MATHER, of 121 Fountainbridge, Edinburgh, in the County of
Midlothian, North Britain, 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 machinery for grinding and sifting oatmea! and is more
particularly applicable for the production of pinhead oatmeal.
Figure 1 is an elevation, Figure 2 a side elevation, and Figure 3 a plan, of my
improved machine.

page_text: I employ two rollers A, B, mounted horizontally and working in adjustable
bearings supported on a frame D. The rollers A, B, may be of chilled iron;
or of steel, and they are grooved as follows. The one roller has its grooves
running parallel to its axis; the other roller has its grooves running in the direction
of its rotation, that is to say the grooves are at right angles to each other, or
approximately so. The first referred to roller is preferably driven at a higher
velocity than the other roller, by any ordinary deferential gearing or pulleys.
By the said arrangement of grooving of the rollers, pinhead meal is produced
with a minimum of fine or small meal.
At a convenient height above the said rollers A. B. I mount an ordinary feed
hopper E in which is mounted an ordinary feed roller.
Inside the framing D and below the grinding rollers A. B. is the sifting machine
so that the whole arrangement forms a machine complete in itself for both grinding
and sifting oatmeal.
The sifter may consist of an arrangement of shaking or rotatory sieves F, Fi
mounted horizontally and driven by a vertical cranked spindle F'. As the meal is
delivered from the rollers A. B. it falls into the upper sieve F through which the
properly ground meal falls into a second or lower sieve F¹ to separate it from the
fine meal, and is discharged therefrom through a shoot G into the one-half of a
double fan machine H below, to be further purified or separated from the dust or
husks. The meal which is insufficiently ground, and which does not pass through
the first sieve F, is caused to pass therefrom down a shoot G¹ into the other half of
the double fanner H, where it is purified or separated from the seeds or husks, and
from thence it is elevated by an ordinary bucket elevator J back into the feed
hopper E to be passed between the rollers A. B. again.
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 :-
1st. The general arrangement, construction and combination of the parts, con-
stituting my improved machine for grinding and sifting oatmeal, substantially as
herein before described and shewn in the accompanying drawings.
2nd. In oatmeal grinding machines, the arrangement and employment of two
grooved grinding rollers, one of which has its grooves running longitudinally and
the other its grooves running in the direction of its rotation, substantially as
hereinbefore described.
3rd. In a machine for the treatment of oatmeal, the combination of the grinder
and sifter, substantially as and for its purposes herein before described and shewn
in the accompanying drawings.
Dated this 9th day of February 1895.
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.