Abstract: In a preferred embodiment there is provided a plate having paired side by side parallel grooves therein for mounting vertically on a rearward face of a sewing machine structure above and behind the fork-carrying foot, the grooves extending vertically, with a laterally extending horizontal track structure carrying a track structure axial shaft axially adjustable within the track and there being an upwardly and downwardly pivotable arm mounted pivotably on the laterally extending axial shaft and having on a lower distal end of the pivotable arm a revolvable flat faced wheel rotatable in a horizontal flange closely adjacent to a side lateral face of the forks of the foot and extending slightly below the bottom face of the forks such that as fabric is fed along the platen plate beneath the forks the flat face of the revolvable wheel serves to guide the edge of the fabric assuring a consistent predetermined spacing of the stitching from the edge of the fabric.