SINGER 4022 - Manual (Page 45)

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2, Mark a position guideline for each
buttonhole.
Horizontal buttonholes A are placed
to extend 3 mm (1/8 inch) beyond
the centre line B of the garment, as
shown, so that the buttons will be in
the centre of the figure when the
garment is fastened.
Horizontal buttonliole guidelines
should follow a crosswise fabric
thread.
® Mark the horizontal buttonhole
guideline for each buttonhole. It
should be longer than the fin­
ished length of the buttonhole,
® Mark the starting poira for each
buttonhole 3 mm (1/8 inch) be­
yond the centre line (see illustra­
tion).
Verlical buttonholes C are placed so
that the centre line B of the garment
is in the centre of the buttonhole, as
shown.
® Mark the ends of each buttonhole
horizontally across the centre line
basting and use the centre line
marking as the buttonhole guide
when stitching.
Buttonhole Length
® The buttonhole length should be
just tong enough to allow the
button to slip through the open­
ing without stretching it.
® Buttonhole length is not auto­
matically gauged with the button­
hole foot. It is necessary to
estimate the length by measuring
the width plus thickness of the
button.
« To make sure ttie measurement is
correct, cut a slit in a scrap of
fabric equal to the diameter of the
button you intend to use.
» Increase length of openirig until
button slips through easily.