Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1976-09-16
1977-07-26
Bell, J. Karl
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52177, E04C 242
Patent
active
040373835
ABSTRACT:
An improved metal grating employs a series of parallel bearing bars and cross bars passing laterally through longitudinally spaced holes in the bearing bars. Separate spacer members are provided for maintaining spacing between adjacent pairs of bearing bars. The spacers conform to the shape of and may positively engage a cross bar. The cross bars are fabricated having a length shorter than the total of the width of all the bearing bars and spacer members comprising the grating so that when securing means are tightened to locate the cross bars within the grating, the sides of the bearing bars are brought into compressive contact with the edges of the spacer members.
REFERENCES:
patent: 1606434 (1926-11-01), McAfoos
patent: 2459983 (1949-01-01), Werner et al.
patent: 2607089 (1952-08-01), Clark et al.
patent: 3378955 (1968-04-01), Wahlgren
patent: 3755988 (1973-09-01), Van Der Sluys
Diebold William H.
Russo Adolph D.
Bell J. Karl
Russo Architectural Metals, Inc.
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