IMPROVEMENTS IN PREPARING FOR PULVERIZATION FLINT STONE, CHINA STONE, ORES, MINERALS, SPARS, SANDS, EARTHS, AND OTHER SUBSTANCES
Year: 1849

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
BROWNE, of St. Austell, in the County of Cornwall, Mine Agent, and
RICHARD ROWE VEALE, of the Parish of Colomb Major, in the same County,
Gentleman, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria,
Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twenty-seventh day
of September (One thousand eight hundred and forty-nine), in the thirteenth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said William Browne and Richard Rowe Veale, our
exors, admors, and assigns, Her especial licence, full power, sole privilege
and authority, that we, the said William Browne and Richard Rowe Veale,
our exors, adiñiors, and assigns, or such others as we, the said William
Browne and Richard Rowe Veale, our exors, adñiors, or assigns, should at
any time agree with, and no others, from time to time and at all times during
the term of years therein expressed, should and lawfully might make, use,
exercise, and vend, within England, Wales, and the Town of Berwick-upon-
Tweed, our Invention of "IMPROVEMENTS IN PREPARING FOR PULVERIZATION
FLINT STONE, CHINA STONE, ORES, MINERALS, SPARS, SANDS, EARTHS, AND OTHER
SUBSTANCES;" in which said Letters Patent is contained a proviso that we, the
said William Browne and Richard Rowe Veale, or one of us, shall cause a
particular description of the nature of our said Invention, and in what manner
the same is to be performed, by an instrument in writing under our hands

page_text: and seals, or under the hand and: seal of one of us, to be inrolled in Her
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part. recited Letters Patent, as
in and by the same, reference, being thereunto had, will more fully and at
large appear.
NOW KNOW YE, that in compliance with the said proviso, we, the said
William Browne and Richard Rowe Veale, do hereby declare that the nature
of our said Invention, and, the manner in which the same is to be performed,
are fully described and ascertained in and by the following statement thereof,
that is to say:-
It is well known that the breaking down substances, such as flint stone,
china stone, ores, minerals, spars, sands, earths, and other natural substances,
and also artificial substances, such as glass, vitrious matters, and slags, requiring
to be reduced to a pulverized state, is a very tedious and costly process; and
although the cost of such process in some of such natural matters is considera-
bly reduced by subjecting them to process of calcination, still to break down
the calcined matters is expensive.
Now this Invention consists of subjecting these matters: to a high tempera-
ture, but so as not to fuse the same, and then to the action of water, by which
the subsequent process of pulverizing will be reduced in cost.
In carrying out this Invention I cause the matters to be heated to a bright
red heat, and immediately immerse the same in water whilst still at the high
heat, the effect of which will be that the matters thus treated, when removed
from the water, may be broken down with much greater ease than when acting
on the natural matters in a raw or calcined state, and the artificial matters
above mentioned will, after being so subjected to heat and water, be more
readily broken down or pulverized than when acting on such matters previous
to the preparation thereof, as above explained. In place of immersing the
hot matters in water, which is the mode I prefer, water may be thrown on to
the hot matters, or steam may be admitted amongst the hot matters. There
are, as is well known, many purposes for which it is desirable to reduce or
pulverize flint stone, china stone, ores, minerals, spars, sands, earths, and
other substances, such as in manufactures of glass, earthenware, china, porce-
lain, also for the manufacture of manure, paints, and cements, also for obtaining
metals from their ores, and other purposes; and it will be found that by
having recourse to the preparatory process above described, these manufactures
may be greatly improved so far as the preparatory process of obtaining the
required substances or matters in a pulverized state.
Having thus described the nature of my Invention, and the manuer of

page_text: performing the same, I would have it understood that what I claim is, the
preparing flint stone, china stone, ores, minerals, spars, sands, earths, and other
substances, by heating the same to a high degree of heat, but not so as to fuze
the same, and then to the action of water.