| 摘要 |
PCT No. PCT/DE96/02128 Sec. 371 Date May 6, 1998 Sec. 102(e) Date May 6, 1998 PCT Filed Nov. 7, 1996 PCT Pub. No. WO97/17274 PCT Pub. Date May 15, 1997A device for accurately setting a roller gap of a folding device of a rotary web-fed press uses a rotatable threaded spindle with contrarotating threads at both of its ends. A drivable differential screw gear mechanism is associated with each threaded spindle end and operates to pivot two-armed levers that support the folding rollers to thus vary the roller gap.
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