AN IMPROVED MILL STONE BALANCE
Year: 1882

page_text: LETTERS PATENT to Alfred Julius Boult of the firm of W. P. Thompson &
Boult Agents for Foreign Patent Solicitors of 323 High Holborn in the
county of Middlesex and 6 Lord Street Liverpool in the county of
Lancaster Engineer for an Invention of "AN IMPROVED MILL STONE
BALANCE A communication to him from abroad by Jean Charles Eloi
Thierrion of Passy Grigny in the Republic of France.
"2
PROVISIONAL SPECIFICATION left by the said Alfred Julius Boult at the
Office of the Commissioners of Patents on the 17th October 1882.
ALFRED JULIUS BOULT of the firm of W P Thompson & Boult, Agents for
Foreign Patent Solicitors of 323 High Holborn in the County of Middlesex and
6 Lord Street Liverpool, in the County of Lancaster, Engineer. "AN IMPROVED
MILLSTONE BALANCE [A communication to him from abroad by Jean Charles,
Eloi Thierrion of Passy Grigny in the Republic of France.]
"
This invention relates to novel apparatus or means for exactly balancing mill-
stones of flour and other mills in such a manner that the same can not become
disarranged either when working or when at rest. It is well known how important
it is properly to unite or to couple the working faces of millstones in mills, as all
the parts thereof must be in proper relation to one another and the equilibrium of
the runner must be constantly and mathematically exact if economical and
satisfactory results are to be attained.
The balance-rynd as at present in use does not fulfill the purpose sought to be
attained thereby, namely that of keeping the runner well centred and in place on
the cock head; the stone is very easily moved out of its place and the slightest
vibration caused by the driving gear displaces its centre of gravity so that the
stone, when running continually oscillates and swings thus giving uneven and
imperfect product.
According to this invention I place upon the mill spindle a cockhead having
three arms radiating therefrom. The eye of the runner is fitted with a bush or
lining on which are cast three lugs or supports, corresponding with the three arms
of the cock head. Through the supports on the lining for the eye pass screws which
bear upon the radial cock head-arms and by which the stone is levelled as may be
required.
The number of arms on the cockhead, the shape of the various parts and other
details of construction may be varied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Alfred Julius Boult in the Great Seal Patent Office on the
17th April 1883.
ALFRED JULIUS BOULT of the firm of W. P. Thompson & Boult Agents for
Foreign Patent Solicitors, of 323 High Holborn in the County of Middlesex and
6 Lord Street Liverpool in the County of Lancaster, Engineer
"AN IMPROVED
MILL-STONE BALANCE" A communication to me from abroad by Jean Charles
Eloi Thierrion, of Passy Grigny, in the Republic of France
This invention relates to novel apparatus for exactly balancing millstones of
flour and other mills in such a manner that the same cannot become disarranged
either when working or when at rest. It is well known how important it is
properly to unite or to couple the working faces of millstones in mills as all the
parts thereof must be in proper relation to one another and the equilibrium of the
runner must be constantly and mathematically exact if economical and satisfactory
results are to be attained.
The balance rynd as at present in use does not fulfil the purposes sought to be
attained thereby, namely that of keeping the runner well centred and in. place
on the cock-lead, the stone is very casily moved out of its place as the slightest
vibration caused by the driving gear displaces its centre of gravity eo that the
same when running continually oscillates or swings thus giving an uneven or
imperfect product.
To render this improved construction or apparatus more readily intelligible I
have annexed to this description a drawing showing the arrangement of each part
of the same.
In Fig. 1, a is the mill spindle, b the cockhead with three arms forming a triangle
and fixed on the upper part of the spindle; can interior lining of the oye of the
stone with three supports for the latter which supports are cast in one piece with
said lining;d are three set screws resting one on the end of each arm of the cock-
head; e is the bedstone; the runner. Figure 2 is a plan view of the runner with
this arrangement.
To sum up, this invention consists of and is based upon a novel combination
for perfectly balancing millstones, so that their equilibrium is not readily disturbed,
this combination being intended for use instead of the old and faulty devices
heretofore employed.
I may vary the form and construction of the several parts of this invention and
construct the same of any suitable material, as best suit circumstances.
Having now described the said invention and the manner of performing
the same as communicated to me by my foreign correspondent, I wish it to be
understood that what I claim and desire to be protected under the herein before in
part recited Letters Patent is:
The construction and arrangement of the device or apparatus herein above
described and illustrated in the drawings for balancing the running stone in
horizontal mills.
In witness whereof I, the said Alfred Julius Boult have hereunto set my
hand and seal this sixteenth day of April in the year of Our Lord one.
thousand eight hundred and eighty three.