Grating

Details Grating Grating

1975-03-11

1976-03-16

Bell, J. Karl

Static structures (e.g., buildings)

Specified wear or friction-type traffic-carrying surface

52667, E04C 242

Patent

active

039436756

ABSTRACT:
A grating assembly comprises a plurality of inverted T-shaped cross pieces 2 each having a plurality of slots 3 in the upper flange. The slots have convexly curved central walls 4. A plurality of transverse profile bars 1 have curved lower flange portions 1c that engage in the slot curvatures when assembled. The latter is implemented by bending the pieces 2 to open the slot mouths and facilitate the bar insertions.

REFERENCES:
patent: 2031779 (1936-02-01), Ladd
patent: 3469359 (1969-09-01), Nagin

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