Shoring frame pillar

Details Shoring frame pillar Shoring frame pillar

1989-12-29

1991-07-16

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Self-sustaining

182178, E04G 112, E04G 1148

Patent

active

050317245

ABSTRACT:
A pillar used as part of a shoring, decking or scaffolding frame is made from length of aluminum extrusion having an octagonal periphery with a plurality of internal radial projections whose ends jointly define an unencumbered axial channel dimensioned to receive at either end, the threaded stem of height-adjustment screw-jacks, without need of any screw-jack-mounting sleeves or other screw-jack-centering and holding device.

REFERENCES:
patent: 2126811 (1938-08-01), Rambo
patent: 2467668 (1949-04-01), Hallberg
patent: 3190405 (1965-06-01), Squire
patent: 3564803 (1971-02-01), Breeze
patent: 3856421 (1974-12-01), Nogler
patent: 4194338 (1980-03-01), Trafton
patent: 4408431 (1983-10-01), D'Alessio
patent: 4481748 (1984-11-01), D'Alessio
patent: 4813196 (1989-03-01), Bokelund
The Aluma Frame (brochure) Aluma Systems Corp. 7/1987.

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