Transport apparatus for transporting flexible sheet-like article

Sheet feeding or delivering – Feeding – Separators

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Details

271 99, 271106, 271108, B65H 312

Patent

active

043208932

ABSTRACT:
There is disclosed transport apparatus for transporting flexible sheet-like articles, especially envelopes. The apparatus comprises a transport cylinder, which is mounted on a shaft rotatably journalled in a frame and which comprises two cylindrical body portions. The body portions are each provided with axial suction ducts with outlet openings communicating with the circumferential surfaces of the body portions. The body portions are provided at their mutually remote ends with bores into which project bushes, which are mounted to the frame to be secure against rotation. A suction device is connected in a certain rotational position of the cylinder, through passages which are provided in the bushes and open at the circumferential surfaces of the bushes, with the suction ducts of the cylinder body portions. In another rotational position of the cylinder, the suction ducts of the body portions are ventilated by the bushes. The apparatus is capable of high operating speeds with minimum noise production.

REFERENCES:
patent: 2033849 (1936-03-01), Mudd
patent: 3127168 (1964-03-01), Kramer
patent: 4184670 (1980-01-01), Rosendahl

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