Static structures (e.g. – buildings) – With adjunctive means for assembly or disassembly – Structure includes tool or opening to provide access for a...
Patent
1990-02-08
1990-09-25
Chilcot, Jr., Richard E.
Static structures (e.g., buildings)
With adjunctive means for assembly or disassembly
Structure includes tool or opening to provide access for a...
52607, E04B 160
Patent
active
049584677
ABSTRACT:
A modified concrete block, apparatus and method of manufacture for making the concrete block which includes a bored arch-shaped inspection hole formed through one side wall into one cavity of the concrete block. The inspection hole, used for inspecting reinforcements within the cavity prior to filling with concrete, is formed by the apparatus and in accordance with the method of manufacture by boring a circular hole through the side wall at an acute angle to the side wall in alignment with one cavity. The hole, generally equal in diameter to the length of the cavity, is offset so that it extends from through one edge margin of the side wall toward, but not to, the other side margin of the side wall.
REFERENCES:
patent: 674874 (1901-05-01), palmer
Chilcot Jr. Richard E.
Mai Lan
Prescott Charles J.
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