| 摘要 |
An accelerator ring arrangement for use on an article carrier used in a pneumatic transfer system, the system including a transfer tube defining a passage through which the carrier is propelled. The accelerator ring arrangement includes a continuous seal member surrounding the carrier which is operable to form a pneumatic seal thereabou t. The seal member has an outer edge dimensioned to generally conform to the cross- sectional profile of the passage. The seal member is mounted to the carrier wherein the seal member is laterally movable relative to the carrier.
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