Rubber Spokes Give Bounce to Airless Safety Tires (May, 1938)
These look an aweful lot like the new Tweels introduced by Michelin last year. Although I doubt the Tweels are made of wood…
Rubber Spokes Give Bounce to Airless Safety Tires
Hard wood, embedded in rubber, forms the rim of a new safety tire invented by J. V. Martin of Garden City, N. Y. Said to be more resilient and lighter than pneumatic types, the safety tire has hoops of hickory incased in rubber and fitted with crisscross spokes of ribbed rubber. Punctureproof and blowout-proof, the airless tires absorbed practically all vertical movement when a springless test car drove over four-inch blocks strung along a concrete road in a recent trial, it is claimed.