NEW-INVENTED COMPOUND FOR COVERING OF OF HOUSES, AND OTHER PURPOSES
Year: 1786

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, DENNIS
MCCARTHY, late of Charing Cross, in the Parish of Saint Martin-in-the-
Fields, in the County of Middlesex, but now of Romney Row, in the City
and Liberty of Westminster, Esquire, sends greeting.
WHEREAS the King's most Excellent Majesty, by His Letters Patent
under the Great Seal of Great Britain, bearing date the Eleventh day of
November, in the twenty-seventh year of His reign, gave and granted unto the
said Dennis McCarthy, by the name and addition of Dennis McCarthy, of
Charing Cross, in the Parish of Saint Martin-in-the-Fields, in the County of
Middlesex, Esquire, his executors, administrators, and assigns, His especial
licence, full power, sole priviledge and authority, that he, the said Dennis
McCarthy, his executors, administrators, and assigns, by himself or themselves,
or by his or their deputy or deputies, servants or agents, or such other person
or persons as he, the said Dennis McCarthy, should at any time agree with,
and no other, from time to time and at all times thereafter during the term
of years therein and herein-after expressed, should and lawfully might make,
use, exercise, and vend his "NEW-INVENTED COMPOUND FOR COVERING OF OF
HOUSES, AND OTHER PURPOSES," within that part of Great Britain called England,
the Dominion of Wales, and Town of Berwick-upon-Tweed, in such manner
as to him, the said Dennis McCarthy, his executors, administrators, and
assigris, or any of them, should in their discretion seem meet; and that he,
the said Dennis McCarthy; his executors, administrators, and assigns, 'should

page_text: and lawfully might have, exercise, and enjoy the whole profit, benefit, com-
modity, and advantage from time to time and at all times thereafter accruing
or arising by reason of the said new Invention, for and during the term of
years therein and herein-after mentioned, to have and to hold, exercise and
enjoy the said licence, powers, privileges, and advantages herein-before men-
tioned to be granted unto the said Dennis McCarthy, his executors, admi-
nistrators, and assigns, of the sole use, exercise, and vending of his said New-
invented Compound for Covering of Houses, and other Purposes 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 that case made and provided, His
Majesty, in such Letters Patent, thereby strictly commanding all and every
person or persons, bodies politic and corporate, and all other His Majesty's
subjects, of what estate, quality, degree, name, or condition whatsoever, they
being within that part of His Majesty's said Kingdom of Great Britain called
England, His Dominion of Wales, and Town of Berwick-upon-Tweed, that
neither they or any of them, at any time during the continuance of the said
term of fourteen years thereby granted, either directly or indirectly, do make,
use, or put in practice the said Invention, or any part. of the same, so attained
unto the said Dennis McCarthy, his executors, administrators, and assigns, as
aforesaid, nor in anywise counterfeit, imitate, or resemble the same, nor make
or cause to be made any addition thereto or substraction from the same
whereby to pretend himself or themselves the inventor or inventors, devisor
or devisors, thereof, without the licence, consent, or agreement of the said
Dennis McCarthy, his executors, administrators, or assigns, in writing under
his or their hands or seals first had and obtained in that behalf, upon such
pains or penalties as can or may be justly inflicted on such offender or offenders
for their contempt of His Majesty's said Royal Command, and further to be
answerable to the said Dennis McCarthy, bis executors, administrators, and
assigns, according to law, for his or their damages occasioned thereby; in
which said Letters Patent is contained a proviso, that if the said- Dennis
McCarthy, his executors, administrators, or assigns, or any other person or
persons which shall or may at any time thereafter, during the continuance of
the said grant, have or claim any right, title, or interest at law or, in equity of,
in, or to the power, privilege, and authority of the sole use and benefit of the
said Invention, should make any transfer or assignment or any, pretended
transfer or assignment of the said liberty.or.priviledge,. or any share or shares
of the benefit or profit thereof, to or for any number of persons exceeding the

page_text: number of five; and also that if the said Dennis McCarthy should not parti-
cularly describe and ascertain, the nature of his said New-invented Compound
for Covering of Houses, and other Purposes, and in what manner the same is
to be performed, by an instrument in writing under his hand and seal,
and cause the same to be inrolled in His Majesty's High Court of Chancery
within one calendar month next and immediately after the date of the said
Royal Letters Patent, that then the said Letters Patent, and all liberties and
advantages whatsoever thereby granted, should utterly cease, determine, and
become void, anything therein contained to the contrary thereof in anywise
notwithstanding.
NOW KNOW YE, that I, the said Dennis McCarthy, in pursuance of and
in compliance with the said proviso in the said recited Royal Letters Patent
contained, do, by this present Instrument, declare that the nature of my said
New-invented Compound for Covering of Houses, and other Purposes, and
the manner in which the same is to be performed, is described and ascertained
in the manner herein-after mentioned (that is to say):-
Take three bushels of Thames sand or any white fluxing sand, mix with it
one bushel of salt; calcine them in a kiln or furnace till it becomes a hard
substance or body; then pound or grind it fine, and take of the powder thereof
one bushel, and add thereto one bushel of whiting or white clay (or whiteing
and clay, of each one half. Also add thereto one bushel of calcined ground
flint; or you may put ground glass instead of the first article above mentioned
(namely, salt and sand), and white silver sand instead of said flints; or you
may mix plaister of Paris with the clay. If clay is not easily procured or to be
had, I make the said compound of a pearl or beautiful slate colour by putting
to it a proper quantity of smalts, to heighten the colour according to fancy.
When the said ingredients or compound is or are mixed together, as above
specified, moisten it with water, and work it well together, either with the feet,
shovel, or plaisterers' beaters, till it is of a proper consistency to form into
moulds; then press it in the moulds or frames, shaped as fancy may direct,
and when so formed and dry put them into a kiln or furnace, and burn thein
in the same manner as you burn tiles or porcelain, or potters' wares, confining
the fire from them either by funnels or muffles. The size of said frames, and
the said pieces or plates so formed of the said compound, as aforesaid, for the
covering of houses or other buildings, are to be made according to the distance
of the rafters, and so placed thereon that the joint may meet in the centre of
the rafters, and either lap over a close-made joint, or be made to fit in each
other in a rabating, and the same are to be fastned to the rafters, either by

page_text: eggs, screws, spikes, nails, hooks, holdfasts, or any other fastenings, and the
oints are to be closed either with stone, cement, terris, or fine mortar.
In witness whereof, I, the said Dennis McCarthy, have hereunto set my
band and seal, the Twenty-ninth day of November, in the twenty-
seventh 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., and in the year of our Lord One thousand
seven hundred and eighty-six.