Machines for handling seeds

Article dispensing – With discharge assistant – Article adhering or gripping type

Patent

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Details

221251, 221204, A01C 704

Patent

active

042510112

ABSTRACT:
A machine for picking up seeds from a mass of seeds and depositing the seeds individually comprises a row of suction heads each having a suction duct terminating in an orifice and a container for holding the mass of seeds. The row of heads are pivotally mounted and are provided with a driving mechanism which swings the heads to and fro along a path between a pick-up position in which each of the orifices is adjacent the container and a discharge position in which seeds picked up by suction through the orifices are discharged. In order to enable each head to discharge at the discharge position only a single natural seed rather than a pelleted seed, a wiper member is provided and extends parallel to the row of heads in their path between the pick-up position and the discharge position. The wiper member has a curved surface and the heads swing close to this surface just before they reach the discharge position. The surface is so shaped that a tapering space is formed between the surface and a flat circular surface surrounding the orifice of each head and this tapering space is of sufficient width to hold a single seed, but squeezes surplus seeds away from the orifice of each head as the orifice passes over the curved surface.

REFERENCES:
patent: 3387746 (1968-06-01), Whipple
patent: 3627173 (1971-12-01), Kerker
patent: 3693833 (1972-09-01), Weitz
patent: 3738530 (1973-06-01), Fine
patent: 3757996 (1973-09-01), Lienemann
patent: 3770164 (1973-11-01), Hembree
patent: 4004713 (1977-01-01), Visser
patent: 4117953 (1978-10-01), DeHart

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