Apparatus for transporting and removing samples from a stream of

Details Apparatus for transporting and removing samples from a stream of Apparatus for transporting and removing samples from a stream of

1982-09-02

1989-05-02

Spar, Robert J.

Conveyors: power-driven

Conveyor arrangement for selecting among plural sources or...

By loading or unloading section at selected one of a...

198438, 1986891, 131282, B65G 4746

Patent

active

048259942

ABSTRACT:
Apparatus for removing samples from a single-layer stream of cigarettes which move sideways in the peripheral flutes of hollow rotary first and second drum-shaped conveyors has two valving elements which are disposed in the interior of the respective conveyors and establish or terminate connections between certain suction ports of the two conveyors and a suction generating device in such a way that a desired number of samples can remain on the first conveyor and advance therewith beyond a transfer zone between the two conveyors when the operator depresses a pushbutton, or at regular intervals. In normal operation, all of the cigarettes which are supplied to the flutes of the first conveyor upstream of the transfer zone are delivered to the flutes of the second conveyor. When the operator generates a signal which initiates the removal of samples, suction ports in a selected portion of the periphery of the first conveyor are connected with the suction generating device whereas the suction ports in a selected portion of the periphery of the second conveyor are disconnected from such source. Therefore, when such portions of the peripheries of the two conveyors meet in the transfer zone, the cigarettes which are attracted by the suction ports in the selected portion of the first conveyor remain in the respective flutes and are transported to a removing location where they enter a container. Except in the selected portions of the peripheries of the two conveyors, the suction ports from pairs of spaced parallel rows, and the suction ports in such selected portions form single rows which are disposed between the respective pairs of rows.

REFERENCES:
patent: 3485357 (1969-12-01), Payne
patent: 3664891 (1972-05-01), Schubert et al.
patent: 3665930 (1972-05-01), Giatti
patent: 3685633 (1972-08-01), Rudszinat et al.
patent: 3782523 (1974-01-01), Giatti
patent: 4391372 (1983-07-01), Calhoun
patent: 4452255 (1984-06-01), Brand

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