Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Side-by-side terminus shafts; e.g. – truss
Patent
1978-07-03
1979-07-10
Bell, J. Karl
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Side-by-side terminus shafts; e.g., truss
85 13, 403405, E04C 312
Patent
active
041603508
ABSTRACT:
A floor joist formed of a pair of parallel wood chords, such as 2.times.4's, which are spaced apart and interconnected by sheet metal plates. The plate is normally vertically arranged and its upper and lower edge portions are slit and bent into alternatingly opposed legs having a horizontal wood engaging support portion and a vertical connector portion for overlapping the wood strip vertical faces. The central portion of the sheet forms a pre-sized spacer for fitting between the two wood chords. Thus, each connector plate forms upwardly and downwardly channel-like formations to each receive a chord, with a central spacer portion for maintaining the spacing between the chords. The leg connector portions are formed with struck-out teeth which are embedded into the wood chords for providing the complete joist assembly.
REFERENCES:
patent: 3298151 (1967-01-01), Jureit
patent: 3503173 (1970-03-01), Jureit
patent: 3651612 (1972-03-01), Schmitt
patent: 3708942 (1973-01-01), Leonard
patent: 4078352 (1978-03-01), Knowles
patent: 4096670 (1978-06-01), Fuller
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