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Thomas Orbell
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8040. Orbell, T. March 30. Casings. - An auxiliary exhaust valve-chest secured to the cylinder of a fluid-pressure engine is provided with a perforated cap p to prevent the valve entering the cylinder in the case of fracture of the valve spindle.
GB191108040D1911-03-301911-03-30Improvements in Steam Engines and the like.
ExpiredGB191108040A
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