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The presserfootclamp-
ing lever on the BER¬
NINA sewing machine
at a convenient spot is
provided with a sharp
edge to
he used as
thread cutter. (See il¬
lustration.)
This device helps save
time especially when
scissorsai enot in reach
of hands.
Fig. 26 c
Fie. 21
Buttonhole Sewing
automatic
There are three kinds of buttonholes:
A) the ordinary buttonhole
B) the buttonhole with cord inlay
C) the raised buttonhole
A. The ordinary buttonhole
This
is sewn
with
normal
lower
thread
tension, but with special threading of the
bobbin case (see Pig. 27). The sewing of
the
buttonhole
with
the
new
buttonhole
device is effected without turning the cloth
round. The buttonhole can be sewn either
step by step, the
machine being stopped
after each operation, or in one working
operation,
i. e.
without interrupting
the
various working stages. It will be well to
learn sewing buttonholes step by step. After
a little time you will naturally sew the whole
buttonhole in one working operation.
51
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