AN IMPROVED BARLEY MILL
Year: 1886

page_text: Date of Application, 30th Oct., 1886.
Complete Left, 10th May, 1887.
Complete Accepted, 19th July, 1887.
I, JOHN WATSON of Littleour, Meikleour, in the County of Perth, North Britain,
Miller and Farmer do hereby declare the nature of the said invention for AN IMPROVED
BARLEY MILL to be as follows:-
This Invention, which relates to an improved barley mill consists in the upper part
of a hopper into which the barley is filled. The hopper communicates with a casing
within which is contained a stone for grinding the skin or husk off the barley. The
casing is of iron or steel and punched with holes the size of the barley required. At
the lower part of this casing a separator is arranged and sacks are provided for the
purpose of collecting the several grades in them. After the barley has been reduced
to the size required it passes through the case on to a sieve and blast which separates
the Barley from the dust or light particles.
Dated this 29th day of October 1886.
J. H. JOHNSON, DAY & JOHNSON,
115, St. Vincent Street, Glasgow,
Petitioner's Agents.

page_text: I, JOHN WATSON of Littleour, Meikleour, in the County of Perth, North Britain,
Miller and Farmer 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:-
My Invention, which relates to an improved barley mill, consists in the upper part
of a hopper into which the barley is filled. The hopper communicates with a casing
within which is contained the stone for grinding the skin or husk off the barley. The
casing is of sheet iron or steel and punched with holes the size of the barley required.
At the lower part of this casing a separator is arranged with or without a sieve, and
sacks are provided for the purpose of collecting the several grades in them.
After the barley has been reduced to the size required it passes through the
case on to the sieve or separator or both which separates the barley from the dust
or light particles.
In order that my Invention may be properly understood and readily carried into
effect, I will now proceed to describe the drawings hereunto annexed.
At Figure 1, of the annexed drawings is shewn in elevation the outer parts and
driving gear of my improved barley mill, Figure 2, being a side elevation corresponding
thereto.
Figure 3, is a section partly in elevation of the said barley mill, and
Figure 4, another transverse section shewing the driving gear for the perforated
casing.
The first motion shaft of the mill is marked A, and on it the grindstone E, is carried.
This shaft A, is driven from a water wheel or other suitable motor. On the said first
motion shaft A, is a pulley D, which, by means of the strap C, drives the pulley B.
The grindstone E, is driven at a high speed in one direction and the revolving punched
or perforated metallic casing of sheet iron F, is driven at a slower speed in the same
direction. On the shaft A the perforated casing F is carried so as to revolve loosely
upon it and a large spur wheel G is fixed to one end of the said casing, and is actuated
by the pinion H, upon the shaft I which is driven by a belt passing over a pulley
thereon, but not shewn in the drawings. The mill is provided with a governor which
may be of the kind ordinarily known as a Watt Steam Engine governor and as such
is marked J, Figures 1 and 2 on the annexed sheets of drawings, but it is to be
understood that any other kind of governor may be used. The object of introducing
a governor into the arrangement is this namely, that as the grindstone is driven at a
very high velocity and if at that velocity it should reduce the barley faster than the a
rate at which the barley is fed into the mill, the velocity of the grindstone would
increase to a dangerous extent, that is to say, the tendency of the velocity would be to

page_text: cause the stone to fly to pieces by centrifugal action, therefore to prevent a dangerously
high velocity being at any time acquired by the stone, the governor J, is applied to
check that velocity by actuating the slide P, which, as the increasing velocity draws
out the said slide P, causes an increased rate of feed of the barley to take place thus
producing a direct retarding effect on the velocity. A feed wheel O, is actuated by
the strap X, from a pulley on the shaft D, as shewn at Figures 2 and 3. The barley
when reduced to the proper size escapes through the holes or perforations in the
revolving punched or perforated metallic sheet casing F, and falls on to the sieve Q,
arranged at the underpart of the punched or perforated sheet metal casing. This sieve
is of complex construction and is supported at each end of the vibrating links R,
whilst it is rapidly oscillated horizontally by means of the eccentric S, upon the
shaft A'. The barley falls through the upper sieve Q, and the larger sized portions
thereof escape through the spout T, into the bag U, whilst the portions of lesser size
fall through the second sieve Q', pass through the spout V, and are collected in the
bag W, the dust or flour escaping through the lowest sieve Q², into the bag Z.
In place however of the products from the grindstone as they escape through the
perforations of the revolving casing falling directly upon the sieve Q, as herinbefore
described these products may be allowed to fall into a hopper provided at one side
with a revolving fan or its equivalent which has the effect of blowing off the dust as
well as separating the larger and smaller grades of the ground barley and causing
them to fall through different spouts into bags or other receptacles for retaining them.
This modification of my Invention is shewn in transverse section at Figure 5, wherein
the grindstone E, and casing F, correspond to the same parts in the preceding
Figures 1 to 4. From the shaft A, Figure 4, the rotating fan B, is driven by a belt
passing over pulleys as shewn in dotted lines. The barley as it escapes together with
the dust through the perforations in the revolving casing F, fall to the bottom of the
hopper C, and on escaping through the opening in the lower part of the said hopper
are brought into or against the blast escaping from the rotating fan B. The effect of
this blast is to drive the dust and all the lighter or finer particles up towards the
underside portion of the shoot C, where it descends and falls through the spout G,
and is collected in the sack H'. The heavier and larger sized grades of the barley
escape through the spout E, into the sack F¹.
It is to be understood that this separator may be used instead of and as the
mechanical equivalent of the sieves herein before described or a still more perfect
result is obtained by using the separator in combination with the said sieves, that is
to say by causing the barley and dust to be first separated from each other by the
action of the fan blast and the different grades of barley to be then separated from
each other by falling through the sieves Q³, Q².
It is to be understood that one mill constructed according to this Invention will
produce different sizes and grades of barley as may be required by providing it with
a set of perforated sheet metal casings, the perforations wherein are of different sizes,
and this may also be effected by placing one perforated casing over another so that
the one set of perforations can be moved over the other set and thus the sizes of holes
may vary from time to time as required.
By means of the improved barley mill constructed as hereinbefore described
continuous working of the mill, that is to say a continuous feed of the barley in its
natural state and a continuous discharge of the barley in its treated state are obtained,
so that the necessity of stopping the mill at intervals for the purpose of taking out the
barley from the casing containing the grindstone as hitherto, used and the loss of time
consequent thereon is overcome, this resulting from the employment of the perforated
casing.
It is to be understood that the governor hereinbefore described for regulating the
feed of the barley and speed of the grindstone may be dispensed with but it is more
advantageous to work with the grindstone.
In working my Invention the most perfect result is obtained by having the barley
thoroughly screened and passed through the "blocking" mill such as is shewn at

page_text: Figure 5, of the accompanying drawings and then passed through the finishing mill
as shewn at Figures 1, 2, 3 and 4, or the Invention may be advantageously used in
the finishing of fine barley, such as pearl barley.
Having now particularly described and ascertained the nature of my Invention and
in what manner the same is to be performed, I declare that what I claim is :-
1. The arrangement and combination of parts constituting the improved barley mill
and with or without a governor substantially as hereinbefore described and shewn
upon the annexed sheets of drawings.
2. The perforated sheet metal casing substantially as hereinbefore described and
shewn upon the annexed sheets of drawings.
3. In a barley mill wherein revolving perforated casings are used the combinations
therewith of the separator and sieves either singly or together substantially as herein-
before described.
J. H. JOHNSON, DAY & JOHNSON,
Applicant's Agents.