| 1. | The large spiral spring to hold the clutch in engagement is stationary.
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| 2. | Tension maintained in the spiral spring counterbalances the weight of the sash.
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| 3. | The tubular balance has a spiral spring encased in a long metal tube.
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| 4. | His design used a fast-beating balance wheel controlled by a temperature-compensated spiral spring.
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| 5. | The science of mechanics might perhaps suggest a means, namely, a strong spiral spring.
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| 6. | Brockway-Smith makes spiral spring balances, and you could order new ones through your local lumber dealer.
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| 7. | A suspension was independent, with spiral springs.
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| 8. | The bogie frames were fastened to the axle box via a revolute joint and a spiral spring.
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| 9. | On top of the truck frame was a movable iron frame carrying four posts containing heavy spiral springs.
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| 10. | A bogie check spring, having a single spiral spring, was enclosed in a box secured to the curved plates.
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