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Wilfred Rothery Wood
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Chemical And Physical Treatments For Wood And The Like
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Abstract
20,917. Wood, W. R. Sept. 29. Valve gear.-The gear is for use when it is intended to impart to the piston an intermittent motion, or a period of rest or dwell at the end of a stroke. The main valve 4 is moved in one direction by the pressure in a cataract cylinder 10, the passage of fluid to and from which is controlled by a cock 11, and in the other direction by the steam or other motive fluid acting upon the piston 18. The port by which steam passes to and from the piston 18 is opened to the pressure passage 8 and exhaust pass1ge 2 by the balanced valve 5 which is worked by a tappet 6 on the main piston-rod.
GB190320917D1903-09-291903-09-29Improved Means for Operating the Pistons in Steam and other Fluid Pressure Cylinders.
ExpiredGB190320917A
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