At the feed points (3), which are regions in which a feed conveyor (2) crosses over a group conveyor (1), group conveyors (1) and feed conveyors (2) are rectified.

The feed transporter has a regulator for regulating and maintaining a constant pressure in the feed transporter.

A supply conveyor (10) overlies a reciprocating transport (12) conveyor.

An infeed conveyor (14) delivers in series items (18) row-by-row onto the row conveyor (20).

The velocity of reciprocation of the transport conveyor is timed to the speed of the supply conveyor.

The supply conveyor conveys the matter to a distribution device.

It includes a first conveyor belt (301) adjacent to the in-feed conveyor belt (321) and a second conveyor belt (302) adjacent to the first conveyor belt (301).

An outfeed conveyor (20) is located beneath the infeed conveyor (17) and receives material from the hammer mill (14).

The hammer mill (14) is fed by an infeed conveyor (17) which delivers material to a feed roller (19).

Pressurized air is connected to the feed line for continuously supplying the pressurized air to the feed transporter.

In use, an infeed conveyor (27) delivers the object (O) into the turret (13).

The feed conveyor (12) supports articles disposed thereon.

Beside this feed conveyor, there is an additional conveyor on which adjustable abutment means are mounted.

The apparatus includes a conveyor which advances the workpieces.

A feed transporter is fluidly connected to the source by a feed line for receiving the powdery substance under pressure.