Machines of Class 11 have a cylinder bed and a drop feed,
and are especially designed for stitching heavy tubular
shaped articles in cloth or leather. They are used in the
manufacture of mail bags, coal bags, ore bags, military
boots and a great variety of similar articles. Some of the
machines of Class 11 are intended for making grommet holes
and overseaming or zig-zag stitching in heavy fabrics.
Machine 11-37 is used for stitching the legs of fine quality
boots and other tubular shaped articles made of light or
medium )veight leather. This machine feeds the work up the
cylinder. The maximum lift of the presser feet is inch and
stitches varying in length up to % inch can be readily made.
The “SINGER” Driving Attachment is regularly fitted to this