Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1981-09-08
1985-04-23
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
52586, 52609, 405258, 405285, E02D 1720
Patent
active
045126852
ABSTRACT:
A building block made of concrete or the like comprises a front face, a back face, a top face, a bottom face, and a pair of side faces. The top face has a convex angular first surface with a vertex extending between the side faces, and a concave angular second surface with a vertex extending between the side faces. The concave second surface lies between the convex first surface and the front face of the block. The bottom face has a concave angular third surface with a vertex extending between the side faces, and a convex angular fourth surface with a vertex extending between the side faces. The convex fourth surface lies between the concave third surface and the front face. The convexity of the first and fourth surfaces matches the concavity of the third and second surfaces, respectively, thereby forming a double interlock, namely, an interlock between the first and third surfaces and an interlock between the second and fourth surfaces. A mortarless retaining-wall system is made from the described blocks stacked one on top of the other to form a plurality of upright spaced-apart columns and a plurality of stacked beams extending between each pair of adjacent columns. The ends of the beams are held between the respective blocks of the columns.
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Copy of two-page brochure of Prefab Systems International pertaining to Earthstone.
Ameron Inc.
Taylor Dennis L.
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