This mechanism sorts rings cut off of tubes. Cylinder 1 with internal screw member 2 has holes a throughout its surface and is arranged inside of cylinder 3 which has no such holes. Cylinder 3 lies on rollers 4 and both cylinders rotate about an inclined axis. Workpieces (tube pieces) are loaded into the left-hand end of cylinder 1 and as it rotates they are moved by screw member 2 along cylinder 1. Longer workpieces, dropping into holes a bear against cylinder 3 and cannot get into the space between the cylinders. Shorter workpieces (rings) drop through the holes and slide along between the cylinders, being thereby separated from the longer workpieces. Holes a may be made of various shapes, therefore the mechanism can sort workpieces according to either their shape or their size.
$413$SL,SF$