摘要 |
A hollow, elongated, utility pole useful for supporting luminaires and the like and method of making same wherein an inner core section is formed by wrapping filaments, preferably continuous glass filaments treated in a bonding resin, at a relatively wide angle to the longitudinal axis of the pole to form a selected number of layers of filaments with alternate layers of filaments crossing one another in opposite directions. An outer core section of greater weight than the inner core section is formed on the inner core section by wrapping a selected number of relatively narrow bands of filaments, preferably continuous glass filaments treated in a bonding resin, at a relatively slight angle to the longitudinal axis of the pole with alternating bands of filaments crossing each other in opposite directions. The wrapped layers of filaments are heated at a preselected temperature after wrapping for curing to form a rigid structure.
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