240.80
Figure 9-31.—The 211 W 151 sewing machine.
the presser foot, draw the work back, and cut the
threads close to the material. Lay the ends of the
threads back under the presser foot.
SINGER SEWING MACHINE
211 W 151
This machine performs the same functions as
the 111 W 151. It is a newer model, more
streamlined and modern in appearance, and has
some design features not found in the 111 W 151
machine. (See figure 9-3 1.) These features include
a new lubrication system, a thread take-up lever
guard, a thread lubricator, and a new stitch
indicator.
The 211 W 151 sewing machine is a high-speed
(4,000 rpm maximum), single-needle, lockstitch-
type machine, designated for sewing medium to
heavyweight fabrics. It is belt-driven and has a
rotary hook on a vertical axis, which makes two
revolutions for each stitch.
It has a safety clutch (fig. 9-32) that is
adjustable to suit the sewing conditions; this
protects the sewing hook from damage. If the
hook is obstructed by foreign matter, the clutch
will disengage and re-engage only after the area
has been cleared. The feeding mechanism is a
compound drop and needle feed with the longest
stitch at five stitches per inch.
240.81
Figure 9-32.—Safety clutch and lower belt pulley.
Other features of the machine include a hinged
presser foot, a presser bar lift of 1/4 inch, a needle
bar stroke of 1 5/16 inches, a bed that is 20 3/8
inches long by 7 inches wide, and a space of 10
1/2 inches to the right of the needle.
Needles
The needles used in this machine vary
according to the clearance under the presser foot.
9-26
