E - Fixed Constructions – 04 – H
Patent
E - Fixed Constructions
04
H
E04H 12/02 (2006.01) H02G 7/20 (2006.01) E04H 12/24 (2006.01)
Patent
CA 2071303
A utility power pole system comprises a pultruded hollow primary pole having an external hexagonal cross section and a number of longitudinal exterior grooves along its length. The hollow primary pole also has an internal hexagonal cross section rotated 30° relative to the external hexagonal cross section . One or more pultruded hollow liners are provided which are also hexagonal in cross section and which may be internally or externally concentric with the primary pole. These liners vary in length to achieve an effective structural taper to the power pole system. The insertion of a tapered liner in the lower portion of the utility pole results in a utility pole having the effective load bearing capability of a tapered utility pole. By using a plurality of overlapping liners of varying lengths, an effective taper can be provided to the utility pole. The longitudinal grooves in the outer surface of the primary pole provide a means for climbing for a utility lineman and a means for attaching accessory attach- ment devices such as cross arms, stiffening members, conductor supports and for interconnection with other structural elements in a more extensive system. The rounded edges of each longitudinal groove are directed inwardly so as to retain devices in the groove which conform to the cross section of the groove. Cross arms attached to the utility pole may also employ similar longitudinal grooves to facilitate inter- connection with existing utility hardware or other components.
Mccombs P. Roger
Smart & Biggar
LandOfFree
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