Abstract: This invention concerns a sewing machine of the kind in which a main base and a supplemental base are provided. The supplemental base is connected to the main base through link mechanisms so as to be either contiguously positioned with respect to the main base or spaced therefrom so as to present a narrower support surface conducive to supporting a tubular fabric.

Abstract: An auxiliary table for sewing machines of free arm type which includes a main body, a cylindrical bed integrated with the main body, a base member fixed to the main body, a hinge plate rotatably mounted on the base member at one end thereof, and an auxiliary table engaged with the other end of the hinge plate and slidable therewith toward and away from the cylindrical bed. A plate spring is connected to the base member for downwardly biasing the hinge plate, thereby preventing the hinge plate from swinging movement and the auxiliary table from vibrating for flat work sewing. The hinge plate provides for the auxiliary table to be moved in a first position in contact with the free arm while for tubular work sewing the table can be swung in a second position separately from the arm.

Abstract: A sewing machine includes a base extension which serves as both a work-supporting surface and a receptacle containing machine accessories therein. The base extension is so hinged to the machine that even when the machine is converted into a cylindrical bed type a sufficient space may be provided between the underside of the cylindrical bed and the upper surface of the rested base extension.