Apparatus for transversely severing or transversely perforating

Details Apparatus for transversely severing or transversely perforating Apparatus for transversely severing or transversely perforating

1978-05-09

1980-10-07

Bray, W. Donald

Cutting

Cutting motion of tool has component in direction of moving...

With means to render cutter pass ineffective

83328, 83345, B26D 156

Patent

active

042261490

ABSTRACT:
A machine for cutting or perforating webs of materials comprises a frame, a splined first shaft carrying a plurality of angularly spaced first tools and rotatable in the frame, a second shaft rotatable in the frame and parallel to the first shaft, supporting plates carried by the second shaft, a third shaft parallel to the first and second shafts and carrying a plurality of angularly spaced second tools for co-operating with the first tools, the third shaft being rotatable in the supporting plates eccentrically to the second shaft, a spur gear fixed to the third shaft, an intermediate gear in mesh with the spur gear loosely rotatable on one of the supporting plates, a central gear in mesh with the intermediate gear and mounted on the second shaft for rotation relatively to the supporting plates, a lever fixed to the central gear, an entrainment bolt on the lever selectively insertable in one of a plurality of holes which are provided in a swing arm at the same angular spacing as the first tools, the swing arm being rotatable on the second shaft and being selectively connectible by way of a crank rod either to a fixed pin or to a crank pin, an idler gear in the frame and carrying the crank pin, and a further gear secured to the second shaft and in mesh with the idler gear.

REFERENCES:
patent: 2327106 (1943-08-01), Hallden
patent: 2734570 (1956-02-01), Hallden
patent: 3906827 (1975-09-01), Fritz
patent: 3946629 (1976-03-01), Achelpohl

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