Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Components adjustably or collapsibly connected
Patent
1976-12-01
1978-08-15
Purser, Ernest R.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Components adjustably or collapsibly connected
52126, 52694, 249 28, E04H 1218
Patent
active
041062566
ABSTRACT:
Adjustable shoring apparatus includes upper and lower pairs of horizontally extending spaced apart parallel chords, a plurality of struts extending obliquely from the upper chord pair to the lower chord pair and between the chords in each pair in a continuous longitudinal series of strut pairs of like substantially V-shaped configuration having their apices at the lower chord pair, means connecting the upper and lower ends of the struts respectively to the chords of the upper and lower pairs in a truss-like structure adapted for supporting a load on the chords of the upper pair, a plurality of vertically extending elongated legs each having a vertical series of support pin holes which extend transversely therethrough, the legs having upper portions inserted between the chords in the lower pair and lower portions extending below the structure to provide support therefor, the legs being vertically reciprocally movable relative to the structure for adjusting the combined height thereof, the strut pairs in said series each being adapted for inserting one of the legs between the struts of and at the apex of the strut pair, the legs being inserted between the struts in respective selected strut pairs and being insertable alternatively between the struts of other strut pairs along the length of the structure for supporting the structure alternatively at said other locations, and means for supporting the structure on the legs adjustably at varying elevations including means carried by the chores in the lower pair and defining support pin holes, the hole-defining means being adapted for disposing the pin holes thereof on opposite sides of each leg for registry with the leg pin holes successively in any of said locations of the leg, and a support pin removably insertable through a selected one of the pin holes in each leg and through the pin holes of the hole-defining means in registry therewith for transferring the load forces from the hole-defining means to the legs.
REFERENCES:
patent: 2114902 (1938-04-01), Henderson
patent: 3826057 (1974-07-01), Franklin
patent: 3977536 (1976-08-01), Moore et al.
Friedman Carl D.
Gerlach Norman H.
Purser Ernest R.
Symons Corporation
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