Gearbox with gears with conical coaxial front toothed wheels

A gearbox with gears, comprising:

• a driving wheel and a driven wheel, the driving wheel and the driven wheel rotating on a common axis, and with a cursor arranged transversely to the common axis of the driving wheel and the driven wheel and sliding with respect to the driving wheel and the driven wheel,
• wherein the gearbox comprises respective crown gears arranged on different diameters of the driving wheels wheel and, respectively, of the driven wheel,
• wherein the crown gears have surfaces facing the driving wheel and, respectively, the driven wheel and are made with teeth protruding from surfaces facing the driving wheel and, respectively, the driven wheel,
• wherein the cursor has opposite ends and further comprises two gears arranged at its opposite ends,
• wherein the cursor has an axis and the gears at the opposite ends of the cursor rotate around the axis of the cursor and are configured for transmitting motion from the driving wheel to the driven wheel,
• wherein each gear at a respective opposite end of the cursor engages in respective crown gears arranged on different diameters of the driving wheel and, respectively, of the driven wheel, and
• wherein the cursor slides inside a seat formed in the common axis of the driving wheel and the driven wheel.