IMPROVEMENTS IN THE MANUFACTURE OF SHOVELS FOR MINING PURPOSES
Year: 1844

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BRUNTON, Junior, of Pool, near Truro, Civil Engineer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twenty-ninth day of August, in the eighth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto inc, the said
William Brunton, Her especial licence, full power, sole privilege and autho-
rity, that I, the said William Brunton, my ešors, adiñiors, and assigns, or such
others as I, the said William Brunton, my exors, adiñors, 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, my Invention of "IMPROVEMENTS IN THE MANUFACTURE OF SHOVELS
FOR MINING PURPOSES;" in which said Letters Patent is contained a proviso
that I, the said William Brunton, shall cause a particular description of the
nature of my said Invention, and in what manner the same is to be per-
formed, to be inrolled in Her said Majesty's High Court of Chancery within

page_text: 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, I, the said
William Brunton, do hereby declare that the nature of my 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):-
My Invention consists of manufacturing shovels for mining purposes, by
casting them of an alloy of copper and zinc or tin, or both; and in order that
my Invention may be most fully understood, and readily carried into effect, I
will proceed to describe the means pursued by me.
I prepare a suitable alloy of copper with tin or zinc, or with both, which,
whilst in a fluid state, I pour into a mould of sand prepared after the ordinary
manner practised by brass founders from a pattern or model of the shovel
intended to be made. The shovels are made similar in shape with those now
used, the difference being only in respect to the nature of the metals used, and
the circumstance of their being cast in place of being forged out of iron, as is
now practised. The workman or caster will therefore, in carrying out my
Invention, make a pattern of the shovel he intends to cast, or take an iron
shovel the shape of which he wishes to imitate, as his pattern or model, and
mould it in sand, which mould being filled with the alloy already stated will
produce the shovel required. The alloy I prefer for this purpose are three
parts copper, two parts zinc, and one part tin; and when I desire to make
them very hard and tough, I employ eight parts of copper and one part tin,
without any zinc. But these quantities may be varied without departing from
my Invention; and even a small proportion of other metal might be employed,
but I believe not with advantage. When I use the alloy of copper, zinc, and
tin, I practice and recommend slightly hammering the shovels upon a smooth
anvil to consolidate and stiffen them.
Having thus described the nature of my Invention, and the best means I
am acquainted with for performing the same, I would have it understood that
what I claim is, the manufacturing of shovels for mining purposes, by casting
them of an alloy of copper and zinc or tin, or both.
In witness whereof, I, the said William Brunton, have hereunto set
my hand and seal, this Twenty-first day of February, in the year
of our Lord One thousand eight hundred and forty-five.
W (L.S.) BRUNTON, Jun'.

page_text: AND BE IT REMEMBERED, that on the Twenty-first day of February,
in the year of our Lord 1845, the aforesaid William Brunton came before
our said Lady the Queen in Her Chancery, and acknowledged the Speci-
fication aforesaid, and all and every thing therein contained and specified,
in form above written. And also the Specification aforesaid was stamped
according to the tenor of the Statute made for that purpose.
Enrolled the Twenty-eighth day of February, in the year of our Lord Ono
thousand cight hundred and forty-five.