| 摘要 |
Apparatus for severing window patches from a web of patch material includes a mechanism for applying adhesive to selective portions of the web, a pair of cooperating rolls to feed the web to the adhesive applying mechanism, a vacuum roll engaging successive window patches with adhesive, a severing mechanism cutting successive window patches of a pre-selected length from the web in spaced relation to a portion of the web engaged to the surface of the vacuum roll, a vacuum conveyor positioned between the adhesive applying mechanism and the severing mechanism to advance the web along a path from the adhesive applying mechanism toward the severing mechanism, a discharging end portion of the vacuum conveyor being spaced from the severing mechanism. The vacuum conveyor is constructed and arranged to transport the web from the adhesive applying mechanism, a pre-selected distance through the vacuum roll before the web is transferred to the vacuum roll and from the latter to the severing mechanism.
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