| 摘要 |
A sheet material to be saturated with a fast-reacting saturant, approximately one minute at room temperature, passes under a trough positioned across the travelling web and having a longitudinal slot through its bottom. A threaded rod having a diameter larger than the slot width is laid over the slot in the trough. The fast-reacting saturant is supplied to a traversing dispensing device located above the trough. This traversing device dispenses the saturant into the trough. The threaded rod co-acts with the slot in the bottom of the trough to meter the amount of fast-reacting saturant flowing through the trough and onto the sheet material moving under and contacting the bottom of the trough.
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