Abstract: A driving device for rail vehicles having both a friction drive and a cog gear drive has a common drive shaft placed in the longitudinal direction of the rail vehicle. The drive shaft is provided with driving worms which mesh with worm gears on the driving axles of the friction drive and the cog gear drive. The worms are axially spaced on the drive shaft and engage the respective drive gears of the friction and cog gear drives which are located under the drive motor so as to obtain greater traction force with the friction drive and a more positive meshing of the cog gear with the rack.

Abstract: A miniature toy vehicle powered by a single battery operated motor that, through a shiftable transmission, drives the vehicle in a low speed, four-wheel drive mode or in a high speed, two-wheel drive mode. When the motor is in the off position, the transmission is disengaged from the wheels so that the vehicle can free wheel.