SINGER 404K - Manual (Page 3)

GENERAL INSTRUCTIONS FOR THE CARE AND
OPERATION OF FAMILY SEWING MACHINES
The Principal Parts of Lock Stitch Sewing Machines
and Their Uses.
PRESSURE REGULATING ARM SPOOL PIN HAND WHEEL
F ig . 1. P rinxipal P arts of the H ead .
Head —the part above the table (Fig. 1) containing the stitching mechanism.
Arm —the curved part of the head containing the mechanism for driving the
needle and handling the upper thread.
Bed —the flat portion of the head, under which is mounted the feeding mechan­
ism and that for controlling the lower thread.
Hand Wheel —the wheel at the right of the head driven by the belt.
Bobbin Winder —the mechanism for automatically winding bobbins.
Stitch Regulator —the device which controls the length of the stitch.
Upper Tension —the means for controlling the delivery of the upper thread
from the spool.
Thread Take-up Lever —the part which pulls up the slack thread and locks
the stitch.
Needle Bar —the vertical bar in the lower end of which the needle is inserted.
Presser Bar —the vertical bar to which the presser foot is attached.
Face Plate —the vertical plate on the left of the arm, which may be removed
to give access to the needle bar, presser bar and take-up.