Improved single filer blow-back apparatus.

摘要

An air signle filer apparatus for cylindrical articles (10) is described. A pair of sidewalls (17,18) are defining a bulk storage zone (14) and an adjacent layout zone (16). A plenum (36) is connected to a source of pressure air, and is attachend to each sidewall. Air jet openings (38) in each of said sidewalls serves to advance the articles in single file from the bottom of the bulk storage zone (14) to the outlet (24). A horizontal slot (42 min ) in a vertical wall (34) above the outlet only extends adjacent a top wall of the layout zone and communicates with the plenum (36) for blowing air only along the undersurface of said top wall whereby to draft articles toward the top wall which are not aligned in the layout path and then blow them upstream in said layout zone above the aligned row of articles towards the bulk storage zone.