IMPROVEMENTS IN PAVING STREETS AND OTHER SURFACES "
Year: 1883

page_text: LETTERS PATENT to Joseph Sutcliffe Gabriel of Grelliers Wharf Lambeth in
the County of Surrey for an Invention of "IMPROVEMENTS IN PAVING
STREETS AND OTHER SURFACES "
PROVISIONAL SPECIFICATION left by the said Joseph Sutcliffe Gabriel at
the Office of the Commissioners of Patents on the 16th October 1883.
JOSEPH SUTCLIFFE GABRIEL of Grelliers Wharf Lambeth in the County of
Surrey. "IMPROVEMENTS IN PAVING STREETS AND OTHER SURFACES'
"
This Invention has for its object improvements in paving streets and other
surfaces. I first upon a suitable foundation by preference concrete lay wooden
blocks in any of the ways in which wooden block pavements are now laid.
I protect the wooden surface thus formed with a coating either of granite blocks
or of asphalte. The granite blocks I prefer to be of small size and I bed them on
a thin layer of sand on the wood and then grout them with lias lime and gravel
in the usual way. The asphalte may either be laid directly on the wood or a thin
layer of sand may be interposed.
Pavements thus constructed combine the silence of a wood pavement with the
durability of granite or asphalte.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Sutcliffe Gabriel in the Patent Office on the 15th April
1884.
JOSEPH SUTCLIFFE GABRIEL of Grelliers Wharf Lambeth in the County of
Surrey " IMPROVEMENTS IN PAVING STREETS AND OTHER SURFACES
"
This invention has for its object improvements in paving streets and other
surfaces.
I first upon a suitable foundation, by preference concrete lay wooden blocks in
any of the ways in which wooden block pavements are now laid. I protect the
wooden surface thus formed with a coating either of granite blocks or of asphalte.
The granite blocks I prefer to be of small size and I bed them on a thin layer of
sand on the wood and then grout them with lias lime and gravel in the usual way.
The asphalte may either be laid directly on the wood or a thin layer of sand may
be interposed.
Pavements thus constructed combine the silence of a wood pavement with the
durability of granite or asphalte.
In carrying out my invention the wood pavement is composed of blocks and
may be laid in any approved manner and as when it is intended that the traffic
should run directly upon it. The granite blocks which I lay over the wood
pavement to increase its durability I prefer to be about four inches deep, indeed
cubes of granite measuring four inches on every side are very suitable but these
dimensions may be varied. In bedding this granite pavement only so much sand
should be employed as will be converted by the grouting with lime into a firm
concrete and no more than is necessary to allow of the granite blocks being laid
with a fair face.
Under these conditions the wood pavement will be very durable and the granite
can readily be renewed when it becomes worn
When I use asphalte in place of granite over the wood pavement I prefer to
apply it directly to the wood the surface of which I prefer to prepare by coating
it with pitch. The asphalte should be laid to a thickness suited to the traffic;
from two to three inches will be suitable for ordinary streets.
'
Having thus described the nature of my said invention and the manner of
performing the same I would have it understood that I claim :-
First A compound pavement consisting of wooden blocks below and over the
wood pavement an upper pavement of granite blocks substantially as described.
Second A compound pavement consisting of wooden blocks below and over the
wood pavement an upper pavement of asphalte substantially as described.
In witness whereof I the said Joseph Sutcliffe Gabriel have hereunto set my
hand and seal this ninth day of April in the year of our Lord One thousand eight
hundred and eighty four.
JOSEPH SUTCLIFFE GABRIEL (L.S.)