Year: 1885

page_text: Used in Connection therewith.
I JOHN LEWTHWAITE of 5 Carlton Place, Halifax Yorkshire, Gentleman do
hereby declare the nature of the invention to be as follows:-
The object of my invention is to combine wood blocks of V shape with key
slots at their sides with asphalt, cement or other material or a combination thereof
as intervening or filling up bodies these being arranged to break joint or otherwise
and form when laid a strong regular and durable roadway.
For the purpose of my invention I prepare wood blocks of V shape and form a
key way in each side I then arrange these blocks top or broad end downwards in
a suitable mould box with the keys fitted in. The spaces between the wood blocks
are charged up to any desired level with liquid or other asphalt or its equivalent
which is allowed to set 1 then fill up the spaces with concrete, cement or other
material capable of forming a compound which can solidify or be compressed into
the spaces between the wood blocks so that the mass forms a cast" corresponding
in size to that of the mould box.
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The "casts" thus prepared are removed by reversing or unkeying the boxes and
they i.e. the "casts" can be laid in the ordinary manner of cubes upon a prepared
concreted or other surface.
The wood blocks with the keys in them can be laid upon a prepared or other
surface and the concrete, cement or other body can be filled into the spaces between
the blocks up to any desired level, asphalt or the like or equivalent material being
then filled in up level with the tread or wearing surfaces of the blocks or roadway.
Dated this on
1004
H. GARDNER,
Agent for the said J. Lewthwaite,

page_text: Used in Connection therewith.
I, JOHN LEWTHWAITE of 5 Carlton Place, Halifax, Yorkshire, do hereby declare
the nature of this invention and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement :—
The object of my invention, is to combine wood blocks of V shape, with key
slots at their sides for the reception of an adjusting rod, with asphalte, cement, or
other material or a combination thereof as intervening, or filling up bodies, these
being arranged to break joint or otherwise and form when laid a strong, regular,
and durable roadway.
For the purpose of my invention, I prepare wood blocks of V shape and I form
a key-way in each side, I then arrange a number of these blocks top or broad end
downwards in a suitable mould box of metal or other material with the keys fitted
in so as to form spaces between the wood blocks which spaces are charged up to
any desired thickness with liquid or other asphalt or its equivalent which is allowed
or caused to set, I then fill up the spaces with concrete, cement, or other material
capable of forming a compound which can solidify or be compressed into the spaces
between the wood blocks so that the mass forms a "cast" corresponding in size to
that of the mould box.
The "casts" thus prepared are removed by reversing or unkeying the boxes, and
they i.e. the "casts" can be laid in any convenient manner upon a prepared
concreted or other surface, or the wood blocks with the keys in them may be laid
alternately upon a prepared or other surface and the concrete cement or other body
can be filled into the spaces between the blocks up to any desired level; asphalte,
or the like, or equivalent material being then filled in up to the tread or wearing
surfaces of the blocks or roadway.
This invention will be clearly understood by reference to the annexed drawings
in which Figure 1 is a plan and Figures 2 and 3 two sections of a compound block
for paving. A, A, are the wood blocks with slot holes B, B, and C, C, adjusting
rods which are made to fit into the slot holes B, B, to keep the blocks A, A, iu the
required form during the process of filling in the asphalte or similar material D,
and also cement, concrete, or a suitable combination of materials E, E, to form the
paving block and produce a more desirable roadway for street traffic than any
hitherto constructed in respect of most, if not all, of the important points sought to
be obtained in such constructions,
To enable me to effect this in the readiest way possible, I cause wood planks to
be cut up into lengths of a rhomboidal shape by a suitable apparatus or machine
which may at the same time that it cuts each block A from the plank score or cut
a groove in the centre of each side of the block A (as shown at Figure 4) which
cut may be of any convenient width and depth to form a slot hole B, B, that when
the blocks are again cut diagonally as indicated at Figure 5, two wedge shaped and
grooved sided blocks will be produced having each a like alot at its two sides as
shown at Figure 6. By this means with the aid of a suitable adjusting rod or

page_text: bar C, C, preferably of wood the blocks A, A, may be placed and fitted in the
moulds or into the blocks upon the ground or street where they have to be laid
with the suitable concrete asphalte or other filling material.
The concrete E may be poured or thrown in, to the full thickness of the block,
which thickness may be regulated according to the character or requirements of the
street or roadway where the blocks are to be used.
When the paving blocks are used for covering subways, passages for pipes, or the
like they may be supported on walls F or on Tirons, as shown at Figure 7, or on
girders or otherwise the spaces between being filled in with asphalte, concrete, sand,
or other material but preferably with wood G covered with asphalte or material
similar to the block. By picking out this "filling in," the block may be easily
removed without disturbing the rest of the roadway.
By the use of this invention an even surface of roadway is ensured and there is
no giving way of individual blocks to form cavities for pools of water. The blocks
may be formed any length of time in advance of work and seasoned for strength,
and will absorb very little moisture.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what
I claim is :-
1. The particular improvements in paving and the preparation of roads to be
used in connection therewith as herein before described.
2. The formation of a roadway by the combination of wedge shaped blocks with
intervening spaces for asphalte, or other like cement, said wedge blocks being partly
inserted into a concrete foundation and partly above the concrete for the reception
between said blocks of asphalte or the like as described and as shown in the
annexed drawings the whole forming a larger block or "cast" for floorings, paths,
roadways, subways and the like.