A CEMENT FOR BUILDING AND OTHER PURPOSES
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
PHILLIPS BEAVAN, of Clifford Street, in the County of Middlesex, Gentleman,
send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Seventh day of December, in the sixth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me, the said
John Phillips Beavan, His especial licence that I, the said John Phillips
Beavan, my exors, admors, and assigns, or such others as I, the said John
Phillips Beavan, my exors, adñors, 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, and
also in all His Majesty's Colonies and Plantations abroad, the Invention, in
consequence of communications made to me by a cortain foreigner residing
abroad, of "A CEMENT FOR BUILDING AND OTHER PURPOSES;" in which said
Letters Patent is contained a proviso, obliging me, the said John Phillips
Beavan, by an instrument in writing under my hand and seal, particularly to
describe and ascertain the nature of the 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

page_text: 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.
NOW KNOW YE, that in compliance with the said proviso I, the said
John Phillips Beavan, do hereby declare that the nature of the said Invention,
and which I call "vitruvian cement," to consist in a composition of marble, flint,
chalk, lime, and water, brought to a polish by means of venetian tale. And in
further compliance with the said proviso, I, the said John Phillips Beavan, do
hereby declare the manner in which the said Invention is to be performed by
the following description thereof (that is to say):-
-
Take one part of pulverized marble, one part of pulverized flint, and one
part of chalk; mix them together and sift them through a very fine sieve; to
this add a third part of lime which has been slackened at least three months,
and put to it sufficient water to make it into a thin paste. This spread as
thinly as possible over a course ground, and brought to a fine surface with tho
trowel, constitutes the said vitruvian cement, and may be brought to a fino
polish as follows:-Sprinkle the surface with pulverized venetian tale, and
trowel it till the required polish is obtained. Now, whereas in order to apply
the said cement to building and other purposes, it is necessary that the
part to be covered with the said cement should be first covered with
a rough ground or under-coat to receive the cement, which rough ground
or under-coat may be made of the following materials (that is to say):-
Take equal parts of the coarsest river sand, and the sand which is pul-
verized from mill stones; mix both together, and add to it a third part of
lime which has been slackened at least threo months; put sufficient water to
form a pasto; when about to use it, add a fifth of very fine sifted lime, and
apply it as common plaister. And whereas if it be required to give the said
cement the appearance of marble, the same may bo done by painting the
veins of such marble as it may be intended to imitate on the cement after it
has been brought to a fine surface with the trowel, and before the tale has been
sprinkled over it. When the paint is dry, the tale may be used, and the work
finished as before described.
Now, whereas that which I claim as the Invention aforesaid is the
cement which I have herein-before called vitruvian cement, and such a
cement being, to the best of my knowledge and 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, or in any of His Majesty's Colonies or
Plantations abroad, I do hereby declare this to be my Specification of the

page_text: same, and that I do verily believe 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 hereby
claim to maintain exclusive right and privilege to the said Invention.
In witness whereof, I, the said John Phillips Beavan, have hereunto set
my hand and seal, this Seventh day of June, in the year of our Lord
One thousand eight hundred and twenty-six.