IMPROVEMENTS IN PREPARING AND PAVING HORSE AND CARRIAGE WAYS
Year: 1824

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ABRAHAM
HENRY CHAMBERS, of New Bond Street, in the County of Middlesex, Esquire,
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 Twenty-eighth day of February, in the
fifth year of His reign, did, for Himself, His heirs and successors, give
and grant unto me, the said Abraham Henry Chambers, His especial
licence, full power, sole privilege and authority, that I, the said Abraham
Henry Chambers, my exors, admors, and assigns, or such others as I, the said
Abraham Henry Chambers, my exors, admors, and 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 said Majesty's Colonies and Plantations abroad, my Invention
of "IMPROVEMENTS IN PREPARING AND PAVING HORSE AND CARRIAGE WAYS;"
in which said Letters Patent there is contained a proviso obliging me, the
said Abraham Henry Chambers, 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 Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said in part recited Letters

page_text: interstices that will then be left vacant I propose to fill with finely broken
flints, the said patent English pozzolane powdered, or any other similar sub-
stance not soluble in water. By this arrangement it will be seen that no part
of any stone can be acted upon by a pressure downwards without having a
corresponding base to support the said pressure, while the substance filling up
the upper part of the interstices before mentioned not being soluble in water,
no mud will be created therefrom.
Fig, 2 is a plan of my said pavement, and of the bed or foundation as
prepared to receive the stones, the same letters being used as are adopted in
in the foregoing Figure to describe corresponding parts.
Fig. 3 represents the stones in that form which I consider the best calculated
to effect the required resistance to downward pressure, the size of which should
be eight inches square at the apex, twelve inches square at the base, and ten
inches high.
Now whereas I have herein-before described the shaped stones which I
conceive to be the best adapted for the purposes of my said improved pavement
or carriage way, but as the cutting of stones of a sufficient hardness for this
purpose into this exact shape would be attended with great expence, I propose
for all ordinary pavements to make use of stones broken and hewn in the
manner in which they are usually prepared for paviours, but taking care, in their
application to the said improved pavement or carriage way, always to lay their
natural bases or largest end downwards, which is the exact reverse of the
mode adopted by paviours. And such an improved pavement or carriage way
as aforesaid, formed by a series of stones of a conical from placed side by side,
and with the natural base or largest end of each of them turned downwards,
and with such bases so turned down as aforesaid cemented together as aforesaid,
and with the upper part of the intermediate spaces or interstices aforesaid filled
with powdered or finely broken matter, not soluble in water as aforesaid, being
to the best of my knowledge and belief entirely new and never before used in
those kingdoms, I do hereby declare this to be my Specification of the 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 do hereby
claim to maintain exclusive right and privilege to my said Invention.
In witness whereof, I, the said Abraham Henry Chambers, have hereunto
set my hand and seal, this Twenty-first day of August, in the year of
our Lord One thousand eight hundred and twenty-four.
AB HY (L.S.) CHAMBERS.

page_text: AND BE IT REMEMBERED, that on the Twenty-first day of August, in
the year of our Lord 1824, the aforesaid Abraham Henry Chambers came
before our said Lord the King in His 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.
Inrolled the Twenty-third day of August, in the year of our Lord One
thousand eight hundred and twenty-four.