Vintage Friction Toys
Friction toys are a type of wheeled mechanical toy that use an inertia or friction wheel to power their movement. The spring attached to the vehicle’s friction wheel is wound by rolling the toy backwards with its tires pressed against a solid surface. While some use a cog to hold or discharge the spring’s energy, most simply unwind as soon as pressure is released from the vehicle, sending the toy speeding forward. The invention of friction...