The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 136
power overcomes the weight of the vaive, and the part A, rises fromthe fixed seat B, leaving two openings for the escape of the steam atthe points C C. This area is much greater than in the ordinary valve,while tlie part to be loaded is only the rim H H, reducing the weightsto about one sixth of… … box which screws into the seat B, to prevent the passage of steamround the spindle E. The sides of the rising part A, are made con-vex, to give a greater passage for the steam when the valve is open. Fig. 3.
Architecture · Civil engineering · Science
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