Pneumatic cushion wheel and method of making same

336,715. Musselman, A. J. Aug. 17, 1929. Jackets and covers; tyre attachments to rims.-A " balloon-tyre " of relatively large tread diameter, and adapted to be fitted to a hub member is formed from one or more plies of fabric which are shaped from an original diameter shown in broken ing the edge portions on a cylindrical support, which may be the hub member. In the form shown in Fig. 3, the edges of the tyre casing 21, having the original diameter shown in broken lines, are contracted to fit the hub 27 by means of strings &c. 23 about which the edges are looped. The tyre is secured between fixed and removable hub flanges 28, 29. The tread portion having inextensible edge reinforcements 64<1> may be separately formed and vulcanized to the shaped casing. In the modification shown in Fig. 4, the edges are fitted with multiple retaining devices 23 and clamped between flanged rings 44, 45, the latter being spaced by rubber &c. rings 47.