| 11. | Sickels patented a valve gear for double-beat poppet valves in 1842.
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| 12. | The poppet valves also gave the locomotive a distinctive " chuffing " sound.
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| 13. | In 1931 No . 2935 was rebuilt with rotary cam poppet valve gear.
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| 14. | The plug looks similar to a poppet valve.
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| 15. | His nickname for her is " poppet ".
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| 16. | Cheever picks up the poppet on Elizabeth's table and finds a needle inside.
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| 17. | The park elevates toward poppet head.
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| 18. | Tyres are examples of poppet valves.
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| 19. | The engine was a vertical one with horizontal, opposed poppet valves for inlet and exhaust.
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| 20. | External wastegates generally use a valve similar to the poppet valve found in the cylinder head.
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