Singer 457 - Page 5

. . . AND WHAT THEY DO
1 .
Spool
Pin - Holds thread spools of various sizes .
2 . Spool Pin Felt - Helps
thread unwind smoothly .
3 . Hand Wheel - Turns totcard
you
to move take-up lever and
needle up and down .
4 . Bobbin Winder Tension Disc - Regulates thread tension for
bobbin
winding .
5 . Power and Light Switch
-'turnson the power and the sewing
light simultaneously . NVhen machine is
not in use, the switch
should be in OFF position .
6 . Feed Regulating Knob-Regulates the feed dog heightfor sew-
ing on regular or fine fabrics and for darning .
7 . Sewing Light -
Pours light onsewing area .
8 . Needle-Thread
Tension Dial - Numbers allow for exact, easy-
to-duplicate tension settings .
9 . Slide Plate - Opens easily
for removal and
replacement
of
bobbin .
10 . Throat
Plate - Numbered guidelines help you keep seams
straight .
11 . Feed Dog - Moves fabric as
it is being stitched .
12 . Presser Foot - Holds fabric against feed
dog .
13 . Needle Clamp - Holds single and twin needles . It is designed
to make needles self-setting and eliminatethe possibility of
incorrect insertion .
14 . Thread Cutter - Guts thread conveniently and safely .
15 . Presser
Foot Lifter - At back of machine, raises and lowers
presser foot and bar .
16 . Pressure
Regulating Dial --Regulates degree of pressure ex-
erted on fabric
by presser foot .
17 . Take-up Lever - Releases
needle thread for forming the stitch
and pulls it taut for setting the
stitch .