US Patent 10119652 Pole and hub

There is provided a pole system suitable for supporting other objects such as bird feeders, plants and the like, the pole system having a pole with at least one transversely extending aperture formed therein, a pin mounted in the aperture and extending exteriorly of the pole on opposite sides thereof, and a hub member having a bottom surface, the bottom surface including a scalloped wall which is arranged to receive the pin such that the hub member is supported, the scalloped wall permitting rotation of the hub when sufficient rotational force is applied thereto.