| 摘要 |
A pair of opposedly arranged belt-centering devices for belt-type vacuum drum filter apparatus, each device engaging a respective beaded side edge portion of the filter belt, each device having an assembly of a pair of bead gripping glide shoes biased towards each other while slidably engaging opposedly arranged tracks on the associated bead, which assembly is also biased in a direction laterally away from the belt and from the associated bead.
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