| 摘要 |
An enveloper ( 10 ) for creating a material envelope around a battery plate, including an anvil ( 29 ) and a rotatable cut-and-crease roller ( 28 ) having a knife ( 35 ) and a generally diametrically opposed crease blade ( 36 ) for acting against the anvil ( 29 ) to cut-and-crease material fed through the enveloper ( 10 ) wherein the enveloper ( 10 ) further includes a control ( 57 ) for varying the rotational velocity of the roller ( 28 ) during a rotational cycle to position the crease to form a symmetrical envelope around a plate passing through the enveloper ( 10 ).
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