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