Wheel Like Swinging Set Small 271×320 Medium 541×640 Large 866×1024 Download Tiff Original 2030×2400 | (1.1 MB) Description A swing, or observation wheel, is a structure, consisting of a rotating upright wheel with passenger gondolas attached to the rim. Keywords big wheel, Ferris wheel, observation wheel, swing, swing set, swinging Galleries Playgrounds Source: Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)