| 摘要 |
A fastener stem collection device for attaching to a power operated fastening device for collecting fastener stems, having a reciprocating tube urged forward by air pressure against the fastening device, which tube has an air jet for introduction of pressurized air to its central bore to draw the fastener stem from the fastening device through the central bore and deliver it to a collection housing. The collection housing has a non-opaque inner tube with an open rear end, and an outer canister with a closed rear end and an open window located medially thereon. The outer canister is selectively affixable in a concentric relation with the inner tube to collect the stems during operation of the fastening device, but may be released and slid rearward of the inner tube to allow the collected stems to be discharged through the inner tube open end and out the outer canister window. During operation, the amount of stems in the inner tube may be determined visually by viewing through the outer canister window and the non-opaque inner tube.
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