| 摘要 |
<p>A gob distributor is disclosed having a deflector (16) which will be operated whenever gobs should be prevented from entering the gob distributor. The deflector (16) is operated by an interceptor valve (22) which is controlled by an air operated four-way pilot valve. A pilot valve maintenance circuit is provided to periodically blow collected water and oil out of the pilot valve. This circuit includes a frequency timer which will periodically operate a solenoid valve and a duration timer which controls the duration of this operation. Means are provided for preventing the operation of these timers beyond selected ranges which assures that any water or oil collected in the pilot valve will be cleared.</p> |
