Importance

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Abstract

An overedge sewing machine convertible from a flat bed to a cylinder bed version wherein the work supporting surface is supported by a vertical side wall and a vertical front wall with the cylinder bed protrusion projecting laterally from an extension to the vertical side wall. A needle bar reciprocates a needle into an opening in the extension of the vertical side wall and the work material is enabled to travel a path beneath the sewing needle by having a deep groove through the vertical side wall adjacent the cylinder bed protrusion behind the sewing needle, the extension being supported by a bridge connecting the vertical side wall, vertical front wall and extension. The deep groove behind the cylinder bed protrusion merges into a shallow groove beneath the cylinder bed protrusion where the material is able to undergo some deformation without effecting the stitching point. A work support plate pivoted on the vertical side wall is fashioned with a finger extending into the deep groove behind the cylinder bed extension so that in its upper position the work support plate forms a continuous work supporting surface with the cylinder bed protrusion and the work supporting surface of the bed. In its depressed position, the work support plate permits access to the groove encircling the cylinder bed protrusion by a cylinder of work material.

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First Claim