Static structures (e.g. – buildings) – Facers; e.g. – modules – mutually bonded by internal settable...
Patent
1985-08-19
1988-11-29
Murtagh, John E.
Static structures (e.g., buildings)
Facers; e.g., modules, mutually bonded by internal settable...
52592, 52603, 52606, E04B 200
Patent
active
047871890
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to building blocks and in particular building blocks formed with mating tongue in grooves along their adjacent edges.
It has been a problem with tongue in groove blocks that while the tongue in groove provide for longitudinal alignment of the blocks during their laying, when the blocks are laid one upon the other the loading between the blocks is accommodated by the bonding composition between the blocks and while that bonding composition is setting the vertical alignment of the blocks can vary.
It is an object of this invention to provide building blocks whereby on the blocks being laid they are positively supported by each other to prevent any misalignment while the bonding composition between the blocks sets.
SUMMARY OF THE INVENTION
In one form the invention resides in a building block of substantially rectangular prismatic configuration wherein the first pair of opposite edges are each formed with a first tongue and a first groove of complementary configuration extending in parallel relationship along each edge wherein the first tongue of one edge is opposite the first groove of the other edge, each of said first pair of edges being formed with a land portion extending between the sides of said edge and the adjacent first tongue or groove, the height of said first tongue above said land portion being greater than the depth of the first groove below said land portion such that on a pair of blocks abutting whereby the first tongue of one edge is snugly received within the first groove of the other edge of another block, the opposing land portions of the blocks are spaced from each other, the second pair of edges being formed whereby one edge has a second tongue extending along its edge and the portions of the one edge to each side of the second tongue being formed with raised land portions, and the other edge of said second pair of edges is formed with a second groove of complementary configuration to said second tongue wherein the height of the second tongue above the land is equal to the depth of the second groove.
According to a preferred feature of the invention the blocks are associated with an elongate base strip having a length greater than at least two blocks and having a planar undersurface and an upper surface having a complementary configuration to the other edge of said second pair of edges to said block, the land portions of said base strip being formed with rebates.
According to a further preferred feature of the invention the blocks are associated with an elongate capping strip having a length of at least equal to two blocks and having an undersurface of complementary configuration to the one edge of the said pair of edges of said blocks.
According to a further preferred feature of the invention the blocks are formed with a set of spaced passageways extending between the second pair of edges.
According to a further preferred feature of the invention the passageways through the block are symmetrically located at equally spaced intervals to each side of the central axis of the block extending between said other edges of the block.
According to a further preferred feature of the invention the set of passageways to each side of the central axis are spaced from each other a distance equal to the spacing between the end most passageways of a pair of abutting blocks, when in position.
The invention will be more fully understood in the light of the following description of one specific embodiment. The description is made with reference to the accompanying drawings of which:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an isometric upright view of a block according to the embodiment;
FIG. 2 is an isometric inverted of a block according to the embodiment;
FIG. 3 is a sectional elevation of a pair of abutting blocks;
FIG. 4 is a plan sectional view of an interconnection between a pair of blocks;
FIG. 5 is an isometric view of a capping strip used in the embodiment; and
FIG. 6 is an isometric view of a base strip of the embodiment.
DESCRIPTIO
REFERENCES:
patent: 960217 (1910-05-01), Dodds
patent: 3369335 (1968-02-01), Smith
patent: 3503165 (1970-03-01), Hardt
patent: 4038798 (1977-08-01), Sachs
patent: 4388361 (1983-06-01), Vassalli
Haug Erik M.
Haug Erling G.
Baldina Pty. Ltd.
Murtagh John E.
Rudy Andrew Joseph
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