Using raw fabric strips the vintage original Singer Binder Attachment will produce the same effect as sewing double-fold 1/4-inch pre-folded bias tape. Perfect for single-layer fabric articles such as placemats, aprons, bibs, or enclosing other raw seam allowances. (Not to be used for quilt binding.)
This attachment is available in Low Shank only. It will fit the Singer Featherweight 221, 222K and all low, vertical shank Singer Sewing Machines (i.e. 15, 27, 28, 66, 99, 185, 127, 128, 192 Spartan, 201, 206, 221, 222, 237, 306, 319, 320, 328, as well as many other brands besides Singer).
Here is the link to the bias binder instructions.