Moms and dads turn gears and yell over revving motors as their sons and daughters push to win.

Most commonly, hitch jacks include a crank that turns internal gears, which then extends out of a metal shaft.

The rule about keeping the drive wheels off the pavement is paramount - to keep them from turning gears inside the transmission and differential.

On tow behind units, the wheels spin a shaft that turns gears which, in turn, spin the disk.

I drove halfway across Denver and spent $25 for a Judy Clock, where kids turn gears and learn to tell time.

The bronze barrel was being elevated to target the top of the pyramid, Overseers frantically turning wheels and gears.

All of this is written in the most general terms, using a dry functional language that clanks with turning gears and ratchets.

After using Slide, "Touch" allows the player to flip switches or turn gears in the background.

The mill is currently kept in operating condition, with the large water wheel turning shafts and gears that turn 2,000-pound mill stones.

He began cranking lustily and the sound of turning gears and a growing whine came from the cabinet.