MACHINES OF CLASS 27W are designed for plain ruffling. They make the lock stitch with one or two needles, and have vertical rotating hooks. They have a drop feed. Any of these machines may be fitted at an additional charge for a great variety of ruffling on skirts, aprons, curtains, upholstery and other types of ruffling and other combined operations . MACHINE 27W1 has one needle and one hook. MACHINE 27W20 has two needles and two hooks, and is made In gauges from 1/8 to 1 Inch. MACHINE 27W50 has two needles and two hooks, and Is made In gauges from 1 1/16 to 2 1/4 Inches. The gauge of a two-needle machine may be changed by substituting a different needle holder, throat plate, presser fool mid feed dog.