Road structure – process – or apparatus – Pavement – Modules or blocks
Patent
1985-11-20
1987-12-08
Novosad, Stephen J.
Road structure, process, or apparatus
Pavement
Modules or blocks
404 42, E01C 500
Patent
active
047115998
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a paving block.
Numerous designs of paving block have been proposed for various purposes, but blocks used for decorative paving (whether load bearing or not) have been limited, because of their shapes, in that they can be laid to produce only a few alternative patterns. Indeed, the great majority of prior known blocks can only be laid in such a manner as to produce one, two or three different patterns, configurations or arrangements. An example of a prior block is shown in FIG. 1 and two patterns which it can be laid to produce are shown in FIG. 2. As seen in FIG. 2A, special end blocks are required in addition, if the pattern edge is to be straight. Other suggestions for paving blocks are made in British Patent Specifications Nos. 275,707; 1,200,147 and 1,573,147.
It would be of great assistance to designers, architects, and engineers if a simple, easily manufactured block was available which permitted numerous different patterns to be laid.
According to the present invention, there is provided a paving block having six sides, a top and a bottom surface, characterised in that two of the side surfaces are substantially parallel and substantially twice as long as each of the other four side surfaces, two surfaces of the said other four side surfaces each making an angle of substantially 120.degree. with one end of each of the longer side surfaces, and each other side surface making an angle of substantially 60.degree. with the other end of each of the longer side surfaces.
In other words, a block according to the invention as seen in plan is of "chevron" shape a shape that could also be termed a squat "V" shape. In geometrical terms, the basic module shape of a paving block according to the invention can be looked upon either as eight equilateral triangles or as a regular hexagon to which is attached two equilateral triangles to form a "fishtail" shape added on to the hexagon. The variety of arrangements which can be made is a consequence of the fact that two blocks will juxtapose or inter-relate in an unusually large number of ways.
The invention also provides a paving made with such blocks. One significant technical advantage of such paving is that patterns may be laid which are less prone to opening along aligned joints, because many of the patterns that can be made with blocks according to the invention have broken (i.e. discontinuous) joints at frequent intervals.
A block according to the invention may be square, chamfered or radiused at its edges.
The invention will be better understood from the following description of non-limiting examples, given with reference to the accompanying drawings in which:
FIG. 1 shows, as stated, one prior art paving block;
FIGS. 2A and 2B show patterns made having the block of FIG. 1;
FIG. 3 illustrates in plan one example of block according to the invention;
FIG. 4 is an end elevation of the block shown in FIG. 3;
FIG. 5 is an end elevation of the block of FIG. 3 looking at the opposite end from FIG. 4;
FIG. 6 is a side elevation of the block according to FIG. 3;
FIG. 7 illustrates, in plan view, a second example of block according to the invention, which is similar to the FIG. 3 block except that the corners are radiused;
FIG. 8 illustrates, in plan view, a third example of block according to the invention, which is similar to the FIG. 3 block except that the corners are chamfered;
FIGS. 9 and 10 illustrate, in end elevation, a fourth and a fifth example of block according to the invention, which are similar to the FIG. 3 block except that in one case the edges of its upper surface are chamfered at 45.degree., and in the FIG. 10 embodiment the edges of its upper surface are radiused;
FIGS. 11-22 show 12 examples of paterns which can be made with blocks according to the invention.
The paving block illustrated in FIG. 3 has a top surface 10, a bottom surface 12, two longer side surfaces 14 and 16, and four shorter side surfaces 18, 20,22 and 24. The block may be solid or hollow. The longer side surfaces 14 and 16 are substantially parallel, as a
REFERENCES:
patent: 306251 (1884-10-01), Hayden
patent: 447612 (1891-03-01), Jones
patent: 2932745 (1960-04-01), Alberti et al.
patent: 4537001 (1985-08-01), Uppstrom
McCauley Corporation Limited
Novosad Stephen J.
Smith Matthew
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