A COMPOUND PREPARATION WHICH WOULD EFFECTUALLY PRESERVE THE BOTTOMS OF SHIPS, AND OTHER VESSELS THAT USE THE SEA, FROM BEING EATEN INTO OR HONEY- COMBED BY WORMS OR OTHER INSECTS, AND THAT I COULD MANUFACTURE THE SAME AT A VERY SMALL EXPENCE, AND THAT IT WOULD BE MORE EFFECTUAL THAN COVERING THE SHIPS BOTTOMS WITH FILLING NAILS OR EVEN COPPER; AND THAT I WAS HUMBLY OP OPINION THAT THE CHEAPNESS OF THE COMPOSITION, TOGETHER WITH THE- NESS OF THE UTILITY, WOULD RENDER THIS DISCOVERY OF THE GREATEST ADVANTAGE AND BENEFIT, NOT ONLY TO HIS SAID MAJESTY'S ROYAL NAVY, BUT ALSO TO SUCH OF HIS SUBJECTS AS WERE CONCERNED OR IMPLOYED INANY MARITIME OR NAVAL AFFAIRS
Year: 1767

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOACHIM
SMITH, of the Parish of Saint Giles, in the County of Middlesex, Gentleman,
send greeting.
WHEREAS I, the said Joachim Smith, did, by my humble Petition, repre-
sent to His present most Excellent Majesty King George the Third, that I
had, after long application, study, labour, and great expence, invented "A
COMPOUND PREPARATION WHICH WOULD EFFECTUALLY PRESERVE THE BOTTOMS OF
SHIPS, AND OTHER VESSELS THAT USE THE SEA, FROM BEING EATEN INTO OR HONEY-
COMBED BY WORMS OR OTHER INSECTS, AND THAT I COULD MANUFACTURE THE SAME
AT A VERY SMALL EXPENCE, AND THAT IT WOULD BE MORE EFFECTUAL THAN COVERING
THE SHIPS BOTTOMS WITH FILLING NAILS OR EVEN COPPER; AND THAT I WAS HUMBLY
OP OPINION THAT THE CHEAPNESS OF THE COMPOSITION, TOGETHER WITH THE GREAT-
NESS OF THE UTILITY, WOULD RENDER THIS DISCOVERY OF THE GREATEST ADVANTAGE
AND BENEFIT, NOT ONLY TO HIS SAID MAJESTY'S ROYAL NAVY, BUT ALSO TO SUCH OF HIS
SUBJECTS AS WERE CONCERNED OR IMPLOYED IN ANY MARITIME OR NAVAL AFFAIRS,"
wherefore, and in regard I was the first and sole Inventor thereof, I therefore
most humbly prayed His said Majesty that He would be graciously pleased to
grant unto me, my executors, administrators, and assigns, His Royal Letters
Patent for the sole use and benefit of my said discovery within that part of
His said Majesty's Kingdom of Great Britain called England, His Dominion

page_text: of Wales, and Town of Berwick-upon-Tweed, and in His Plantations in
America, for the term of fourteen years, pursuant to the Statute in such cases
made and provided; His said Majesty, being willing to give encouragement to
all arts and inventions which might be for the publick good, was graciously
pleased to condescend to my said request, and therefore, by His Royal Letters
Patent, bearing date at Westminster, the Eighteenth day of December, in the
eighth year of His reign, of His especial grace, certain knowledge, and meer
motion, for Himself, Ilis heirs and successors, did give and grant unto me,
the said Joachim Smith, my executors, administrators, and assigns, His especial
licence, full power, sole priviledge and authority, that I, the said Joachim
Smith, my executors, administrators, and assigns, and every of them, by myself
and themselves, or by mine or their deputy or deputies, servants or agents,
or such others as I, the said Joachim Smith, my executors, administrators,
or assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend my said Invention within
that part of His said Majesty's Kingdom of Great Britain called England,
Ilis Dominion of Wales, and Town of Berwick-upon-Tweed, and also in His
Plantations in America, in such manner as to me, the said Joachim Smith,
my executors, administrators, and assigns, or any of us, should in our discre-
tions seem meet, and that I, the said Joachim Smith, my executors,
administrators, and assigns, should and lawfully might have and enjoy
the whole profit, benefit, commodity, and advantage from time to time
coming, growing, accrewing, and arising by reason of the said Invention,
for and during the term of years therein mentioned to have, hold, exercise,
and enjoy the said licence, powers, priviledges, and advantages therein-
before granted or mentioned to be granted unto me, the said Joachim
Smith, my executors, administrators, and assigns, for and during and unto the
full end and term of fourteen years from the date of the said Letters Patent
next and immediately ensuing, and fully to be compleat and ended, according
to the Statute in such case made and provided; in which said Letters Patent
is contained a proviso that if I, the said Joachim Smith, should not particu-
larly describe and ascertain the nature of my said Invention and in what
manner the same is to be performed, by an instrument in writing under my
hand and seal, and cause the same to be inrolled in Ilis said Majesty's High
Court of Chancery within four calendar months next and immediately after
the date of the said Letters Patent, and all liberties and advantages what-
soever thereby granted, should utterly cease, determine, and become void, any-

page_text: thing therein-before contained to the contrary thereof in anywise notwith-
standing, as in and by the said Letters Patent, relation being thereunto had,
may more fully and at large appear.
NOW KNOW YE, that I. the said Joachim Smith, in compliance
with the said proviso, do hereby describe and ascertain the nature of the
aforesaid Invention, and declare that the same is composed and prepared
of the several particulars and performed in manner following, that is to
say-
Take glass of any kind and prepare it. by breaking, milling, or pounding it
to small pieces, fine enough for the use for which you design it, whether it is to
be applied to sheets of paper, planks, or boards, but let it not be reduced to a
powder, as in that case all the sharp and powerful edges and angles of the
glass would be destroyed & rendered unfit for the purpose of repelling the
attack of the worm. The glass thus prepared must be fastened on paper,
planks, or boards, with & by means of my sticking binding mixtures, of which I
have two sorts. To make one, take tar, pitch, turpentine, & white lead, or
any other kind of paint ground in oil; mix a proper quantity of each well
together by heat; then take a large brush fit for the use, & dipping it into
this mixture while hot, pay over the sheets of paper, planks, or boards, to
which you want to apply it, and mix the prepared glass in close and firm while
hot. To make my other binding mixture to fasten the glass on paper, planks,
boards, or timber of airy kind, viz.. take tar & oil, of each a proper quantity,
& boil them together; then take lime of any kind, to which add glass, made
as small & fine as you choose, observing the first direction concerning it, and
mix all these up well together, like to mortar. Being thus prepared fit for
use, first tar the part or place to which you design to apply this mixture, either
paper, planks, boards, or timber; then take a trowel or any other tool, &
spread it on and over the part which is so tarred, and of the thickness you
think necessary for the purpose of preserving the same from the attack of the
worm. Having proceeded thus far, then take prepared glass in its afore-
mentioned state, & strew it on & over the mixture, to make it as thick and
close as possible with the glass. Be sure to tar the part to which this is to be
again applied. This method of using the prepared glass will be excellent for
the preservation of any timber, planks, or piles that remain in a fixt state.
for as this composition will grow extremely hard, 1 do not apprehend it to be
so proper for the bottoms of ships as the glass sheets, as they are of a tough
& pliant nature, and will not crack or give way, which this last mixture may
be apt to do. from the twisting & bending of the ship
But for the greater

page_text: conveniency of ship builders and others, I propose to fasten the whole of the
first-mentioned composition, viz., of glass, tar, pitch, turpentine, white lead,
&c., on and in paper, so as to have the paper on both sides of the composi-
tion, which, when made, may very properly be called glass sheets. Though
the composition may be used without paper, by preparing the planks or boards
as before directed, or the paper may be used with this composition on one side
only, yet it is best to inclose it with paper on both sides. In this last form
the preparation may be conveyed from place to place without the danger of
being rubbed off or injured, which might otherwise happen was the composi-
tion guarded with paper on one side only. The sheets being thus duly pre-
pared are to be tarred over on one side, which side is to be applied to the ship's
bottom (the bottom being tarred also), and nailed on in such a manner as
that the edge of one sheet shall lap a little over that which is contiguous to it.
The workmen must be careful to unite the several edges effectually, by using
some of the sticking mixture hot. The operation is to be compleated by
covering the whole with sheathing boards in the usual way, through which
the worm may pass, but it is apprehended he will in the glass sheets meet with
his ne plus ultra.
N.B. The first-mentioned composition, with or without the glass, may be
excellent for the purpose of paying over the bottoms of ships, vessels, or
small craft of any kind, or any outside work, as it will adhere to the
planks or boards much better than anything hitherto contrived for that
purpose, as it will not crack nor be liable to break off by anything striking
against it.
In witness whereof, I, Joachim Smith, have hereunto set my hand
and seal, this Fifteenth day of April, One thousand seven hundred
and sixty-eight, and in the eighth year of the reign of our Sovereign
Lord George the Third, by the grace of God, of Great Britain, France,
and Ireland King, Defender of the Faith, &c.
Signed, scaled, and delivered (being
first duly stampt) in the presence of
JOHN BLAKE,
JOACHIM SMITH. (L.S.)
Essex Street. Strand. Gent.

page_text: AND BE IT REMEMBRED, that on the Fifteenth day of April, in the
year last above written, the aforesaid Joachim Smith came before the said
Lord the King in His Chancery, and acknowledged the above Instrument,
and all and every thing therein contained and specified, in form above written.
And also the Instrument aforesaid was stampt according to the tenor of the
Statute made in the sixth year of the reign of the late King and Queen
William and Mary and so forth.
Inrolled the Fifteenth day of April, in the year last above said.