Design
SLEIGH, SLEIGH RIDE THEMSELVES
Certainly in every family one goes bad or becomes unnecessary tricycle. And then sell it or just throw it away. Meanwhile you can give him a new profession and it will serve your children even: out worn the tricycle will make a great scooter. At the time I made this for my three year old son. Instead of wheels on the rear axle put on rock skis. And the front fork set on rocking the same — the steering ski.
A BIKE TO CROSS
BIKE + CAR = MOTOMOBILE
“LETRAN” COMES TO THE RESCUE
ELLIPSE VS CIRCLE
To use a bike instead of round sprocket Ellipso suggested in 1892 Professor V. Prusakov. He decided to put the rods along the minor axis of the ellipse that has allowed more efficient use of the power of the cyclist. Experiments have shown that even an inexperienced rider on a machine with the elliptical sprocket expends energy approximately 30% lower than on moving with the same speed filemashine with a round sprocket. And according to the American engineers, the use of oval zubchatki increases the average speed of a cyclist by about 14%.