1. This target may contain magnets, or it may be a toothed wheel . 2. The cloth beam bears a toothed wheel which works a pinion. 3. The rotor is a simple toothed wheel , with no windings or electrical components. 4. They primarily sat around tables soldering color-coded wires to toothed wheels called commentators. 5. Traction was controlled by a motor mechanic utilizing a system of toothed wheels . 6. A simple opisometer consists of a toothed wheel of known circumference on a handle. 7. It is driven by a toothed wheel called a sprocket. 8. This turns half the speed of the driving shaft, so its toothed wheel is twice the size. 9. This tool has several toothed wheels that go in different directions, scoring the paper as you go along. 10. Every mechanic knows that a ratchet is a toothed wheel or bar used to prevent a gizmo from moving backward.
