<p>Apparatus for inserting fibrous plugs into the ends of pipettes comprises means for successively severing lengths from a fibrous strand (usually cotton wool roving) the means having a knife edge, and a relatively movable roller arranged to roll along the knife edge and cut the strand. Preferably the fibrous strand is fed by increments vertically downwardly under gravity towards the severing means, so as to avoid the formation of fluff which occurs when pneumatic feeders are used.</p>
申请公布号
DE2356131(C3)
申请公布日期
1978.08.17
申请号
DE19732356131
申请日期
1973.11.09
申请人
JOHN POULTEN LTD., BARKING, ESSEX (GROSSBRITANNIEN)
