AN IMPROVEMENT IN THE CON- STRUCTION OF PAVING TILES
Year: 1860

page_text: LETTERS PATENT to Charles Aldin; of Clapham Park, in the County
of Surrey, Builder, for the Invention of "AN IMPROVEMENT IN THE CON-
STRUCTION OF PAVING TILES."
Sealed the 23rd November 1860, and dated the 31st May 1860.
PROVISIONAL SPECIFICATION left by the said Charles Aldin at the
Office of the Commissioners of Patents, with his Petition, on the 31st
May 1860.
I, CHARLES ALDIN, of Clapham Park, in the County of Surrey, Builder,
do hereby declare the nature of the said Invention for "AN IMPROVEMENT IN
THE CONSTRUCTION OF PAVING TILES," to be as follows:-
My Invention consists in constructing tiles with a space arched out or
otherwise formed hollow on the under surface so that they may rest upon by
preference four points and afford passage for air under the remaining parts
of the tile. I prefer to form the tiles of white clay, but any of the clays or
cements suitable for the purpose may be used. When tiles, flat on the
under side, are used, the damp rises through them and causes them to be and to
appear moist on the upper surface, but by affording space for ventilation and
allowing the air to enter from the sides of the building where the tiles are laid
this evil will be avoided.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Aldin, in the Great Seal Patent Office on the
30th November 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
ALDIN, of Clapham Park, in the County of Surrey, Builder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of May, in the year of our Lord One
thousand eight hundred and sixty, in the twenty-third year of Her reign,
did, for Ilerself, Her heirs and successors, give and grant unto me, the said
Charles Aldin, Her special licence that I, the said Charles Aldin, iny
executors, administrators, and assigns, or such others as I, the said Charles
Aldin, my executors, administrators, and assigns, should at any time agree
with and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVEMENT IN
THE CONSTRUCTION OF PAVING TILES," upon the condition (amongst others) that
1, the said Charles Aldin, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said Charles Aldin, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawings hereunto annexed,
that is to say:-
My Invention consists in constructing tiles with a space arched out or
otherwise formed hollow on the under surface so that they may rest upon
by preference four points and afford passage for air under the remaining parts
of the tile. I prefer to form the tiles of white clay, but any of the clays or
cements suitable for the purpose may be used. When tiles, flat on the under
side, are used, the damp rises through them and causes them to be and to
appear moist on the upper surface, but by affording space for ventilation and
allowing the air to enter from the sides of the building where the tiles are laid
this evil will be avoided.
Figure 1 of the accompanying Drawings is a plan of the under side, and

page_text: Figure 2 is a side view of one of these tiles; Figure 3 is a perspective view of
the same; a, a, a³, a³, are four points or feet for supporting the tile made in a
piece with the top surface b, and the other part composing the tile. The sides
c, c', c, c, are arched as shown, and their under part is hollowed out as shown
in the plan, Figure 1, for the purposes before stated.
And having now described the nature of my said Invention and in what
manner the same is to be performed I declare that I do not limit myself to
the precise form of the tile shown, provided the essential feature of the Inven-
tion is maintained; what I claim is, the construction of paving tiles with a
space arched out or otherwise formed hollow on the under surface thereof, so
that they may rest upon four or any other number of points or feet and afford
passage for air under the remaining parts of the tile as herein-before described,
and illustrated in the accompanying Drawing
In witness whereof, I, the said Charles Aldin, have hereunto set my
hand and seal, the Thirtieth day of November, One thousand eight
hundred and sixty.
CHARLES ALDIN. (L.S.)