AN. IMPROVED MANUFACTURE OF BOLTS AND OTHER THE LIKE SHIPS' FASTENINGS
Year: 1832

page_text: TO ALL TO WHOM THESE PRESEN
DHA
FREDERICK MUNTZ, of Birmingham, Métal Roller, send greeting..
WHEREAS. His present most Excellent Majesty King William the Fourth,
by His Letters. Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Seventeenth day of December, in the third year of
His reign, did, for Himself, His heirs and successors, give and grant unto
me, the said George Frederick Muntz, His especial licence, that I, the said
George. Frederick Muntz, my exors, adiñors, and assigns, or such others
as I, the said George Frederick Muntz, my exors, admors, 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 "AN. IMPROVED MANUFACTURE OF BOLTS
AND OTHER THE LIKE SHIPS' FASTENINGS;" in which said Letters Patent is
contained a proviso, obliging me, the said George, Frederick Muntz, by an
instrument in writing. under my hand and seal, particularly to describe
and ascertain, the nature of my said Invention, and in what manner the
same is to be performed, and to cause the same to be inrolled in His said,
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said recited Letters Patent, as in and
by the same, reference being. thereunto had, will more fully and at large
appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
George Frederick Muntz, do hereby declare the nature of my said Inven-
tion to consist in making the said bolts and other the like ships' fastenings
of an alloy of zinc and copper, in such proportions and of such qualities as
while it enables the manufacturer to roll and work the said compound metal
into bolts and other the like ships' fastenings at a red heat, and thus makes
the said bolts and other the like ships' fastenings less difficult to work, and
consequently cheaper to manufacture, renders the said bolts and other the like
ships' fastenings. less liable to oxydation, and consequently more durable than
the ordinary bolts and other the like ships' fastenings now in use. And in
further compliance with the said proviso, I, the said George Frederick Muntz,
do hereby describe the manner in which my said Invention is to be performed
by the following statement thereof (that is to say) :-
I take that quality of copper known in the trade by the appellation of "best
selected copper," and that quality of zinc known in England as "foreign zinc,"
and melt them together in the usual manner in any proportions between fifty
per cent. of copper to fifty per cent. of zinc, and sixty-three per cent. of copper
to thirty-seven per cent. of zinc, both of which extremes and all intermediate
proportions will roll and work at a red heat; but as too large a proportion of
copper increases the difficulty of working the metal, and too large a proportion
of zinc renders the metal too hard when cold, I prefer the alloy to consist of
about sixty per cent. of copper to forty per cent of zinc; this compound I cast
into ingots of any convenient weight, and then heat them to a red heat, and
roll or work them while at that heat into bolts and other the like ships' fasten-
ings in the same manner as copper is rolled or worked, but only taking care
not to overheat the metal so as to produce fusion, and not to put it through the
rollers, or work it, after the heat has left it, too much, say, when the red heat
goes off. Now whereas it is evident that the said alloy may also be made from
a compound of copper and calamine by cementation, taking care that the
quantity of calamine shall be such that the zinc extracted from it will be in
some of the same proportions to the copper as before mentioned; but as it is
very difficult to make the copper take up the necessary quantity of zine, by
this process it is more expensive. It is equally evident that brass of very good
quality, with the addition of zinc, requisite to make the proper proportions of
copper and zinc, will likewise roll and work hot, and answer the purpose,
but is again a more expensive mode.
And whereas I claim as my Invention the manufacture of bolts and other
the like ships' fastenings of an alloy of copper and zinc as aforesaid, in such
proportions as will enable the manufacturer to roll or work the said. alloy

page_text: while at a red heat into bolts and other the like ships' fastenings, which are
more durable and more cheaply manufactured than copper bolts, at the same
time that they are less liable to corrode; and such my Invention being to the
best of my knowledge and belief entirely new, and never before used within
that part of His said Majesty's United Kingdom of Great Britain and Ireland,
called England, His said Dominion of Wales or Town of Berwick-upon-Tweed,
I do hereby declare this to be my Specification of the same, and that I do
verily believe that this my said Specification doth comply in all respects, fully
and without reserve or disguise, with the proviso in the said herein-before
in part recited Letters Patent contained; wherefore I do hereby claim to
maintain exclusive right and privilege to my said Invention.
In witness whereof, I, the said George Frederick Muntz, have hereunto
set my hand and seal, this Twenty-fourth day of April, in the year
of our Lord One thousand eight hundred and thirty-three.
DET
(L.S.) MUNIZ.
AND BE IT REMEMBERED, that on the Twenty-fourth day of April, in
the year of our Lord 1833, the aforesaid George Frederick Muntz came
before our said Lord the King in His Chancery, and acknowledged the
Specification 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.
Inrolled the Seventeenth day of June, in the year of our Lord One
thousand eight hundred and thirty-three.