E - Fixed Constructions – 04 – H
Patent
E - Fixed Constructions
04
H
26/181, 214/20,
E04H 12/34 (2006.01) B66C 23/70 (2006.01) E04C 3/30 (2006.01)
Patent
CA 1081169
ABSTRACT OF THE DISCLOSURE A hollow rectangular boom formed with four corner sections of identical cross section and plates interconnect- ing the corner sections is disclosed herein. Each of the corner sections is identical and is generally L-shaped in cross section with first and second legs each having a re- cess with adjacent pairs of corner sections being intercon- nected by flat plates received into the respective recesses and welded therein. The invention also resides in the method of assembling the various parts to form the hollow boom sections.
307973
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