Bernina 531 Manual - Page 22

Hemmer

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Lap Hemmer Tailored effect obtained by having both rows of stitching on the R.S. Can be used to make Run and Fell seam; useful for nightwear, underwear and children's garments. Lap hems are used to produce very firm seams. They are obtained in two operations, viz. : 1st Operation (Fig. 20a): Arrange the fabric sections to be joined on top of each other in such a manner that the bottom section slightly projects from the top one and pass with sections touching both under the lap hemmer as when hemming so that they are folded over. Make sure that the same width of material always enters the lap hemmer. 2nd Operation (Fig. 20 b): The two sections are now unfolded and laid flat so that the seam formed stands up like a pleat. This pleat is again passed into the lap hemmer in the same direction so that it is folded over and sewn down. a Fig. 20 b 39

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Lap
Hemmer
Tailored
effect
obtained
by
having
both
rows
of
stitching
on
the
R.S.
Can
be
used
to
make
Run
and
Fell
seam;
useful
for
nightwear,
underwear
and
children's
garments.
a
Fig.
20
b
Lap
hems
are
used
to
produce
very
firm
seams.
They
are
obtained
in
two
operations,
viz.
:
1st
Operation
(Fig.
20a):
Arrange
the
fabric
sections
to
be
joined
on
top
of
each
other
in
such
a
manner
that
the
bottom
section
slightly
projects
from
the
top
one
and
pass
with
sections
touching
both
under
the
lap
hemmer
as
when
hemming
so
that
they
are
folded
over.
Make
sure
that
the
same
width
of
material
always
enters
the
lap
hemmer.
2nd
Operation
(Fig.
20
b):
The
two
sections
are
now
unfolded
and
laid
flat
so
that
the
seam
formed
stands
up
like
a
pleat.
This
pleat
is
again
passed
into
the
lap
hemmer
in
the
same
direction
so
that
it
is
folded
over
and
sewn
down.
39