A sewing machine has a needle mechanism over a flat surface ... They all perform very well the single task of stitching in a straight line, and by the early twentieth century their design had ...

With an automatic needle threader ... The name post bed usually comes from a single-arm standing vertical on the sewing machines for leather that usually stand out like a fence pole.

manufacture sewing machines using the eye pointed needle and two t ... The first patent granted in England, was in 1850, and for a single-thread "chain-stitch." Some five or six patents ...