permit the production of ornamental stitch patterns application_number US 10076279 A description referring to fig1 3 4 and 5 a sewing machine is shown having a work supporting bed 10 with an axis extending along its length a standard not shown rises from the bed 10 and supports an arm not shown which overhangs the bed 10 and terminates in a sewing head not shown for housing stitch forming instrumentalities there is a stitch forming area 11 contained on the surface of the bed 10 a feed dog which is shown generally at 26 moves the fabric toward and away from the needle penetrating stitch forming area 11 a throat plate 28 which contains a set of mutually orthogonal feed dog accommodating slots 30 is removably carried flush to the surface of the bed 10 and acts to support the fabric against the downward thrust of the needle the feed dog 26 has a first pair of serrated teeth 32 positioned to move fabric in a normal longitudinal line of fabric feeding which is directed in a line which runs substantially perpendicular to the length of the sewing machine bed 10 and a second pair of serrated teeth 34 positioned to move fabric laterally along the length of the bed 10 fig2 illustrates that the feed dog 26 is preferably fastened to a slide bracket 35 by a set of fasteners such as screws 38 wherein the slide bracket is slidably attached.