| 摘要 |
A valve block assembly for controlling the flow of air at either of two pressures to the air operated mechanisms of a section of an I.S. machine comprising a plurality of valves each having a cylindrical sleeve and a valve element axially displaceable within the cylindrical sleeve between first and second control positions, a valve block body including a corresponding plurality of bores for receiving the plurality of valves, the valve sleeves being closed at one end and having an opening extending through the closed end through which air under pressure can be delivered to the valve, the opening being selectively configured so that the sleeves can have two selected orientations each defining an opening location spaced from the opening location at the other orientation, means for maintaining the valve sleeve at either of the two orientations, a first conduit communicating with the openings when the sleeve is at one of the orientations for delivering air at one pressure to the valves and a second conduit communicating with the openings when the sleeve is at the second orientation for delivering air at a second pressure to the valves.
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