Practical Directions for Marking and Adjusting the Corliss Valve Gear: With One and Two Eccentrics (Classic Reprint) - Softcover

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Excerpt from Practical Directions for Marking and Adjusting the Corliss Valve Gear: With One and Two Eccentrics

If, upon removing the front bonnets from the valve chests, no marks are seen on the ends of the valves and on the valve seats, take the steam valves out, one at a time, and mark them, replacing one valve before removing another, so as not to get the valves into the wrong chests. Take a try-square and scriber, and, placing the blade parallel to the working edge of the valve, as shown in Fig. 2, draw a fine line to the end of the valve; then draw a radial line across the end of the valve to meet it, as shown in the same figure. After checking up to see that the lines are correctly located, take -a sharp chisel and make the radial line deeper near the edge of the valve.

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