said housing extends the full height of the doorway an opening or slot 17 wherein the interior of said housing 3 is opened to its exterior traverses the full length of said housing 3 a bottom frame 18 with an aperture 19 thereon partially encloses the lower end of said housing 3 while maintaining the continuity of said slot 17 extending through the lower end of said housing 3 projections 20 on the inner or aft side of said housing 3 serve both as structural stiffeners for said housing 3 and as handles for manual operation of said barrier 1 traversing the full length of and circumscribed by said housing 3 is a hollow cylindrical shaped spool 21 said spool 21 is rotatably attached to said member 4 by means of a vertical shaft 22 within the upper end of said spool 21 and projecting through an opening on a horizontal plate 24 within said member 4 a bearing 23 attached to the plate 24 radially secures said shaft 22 thereto a disk cap 38 fastened to the upper end of and larger in diameter than said shaft 22 prevents any downward axial travel of said shaft 22 a vertical attachment means 25 on the lower end of said shaft 22 and within the upper most end of said spool 21 pivotably and rotationally secures said spool 21 to said shaft 22 said means 25 as illustrated comprises.