Singer 328 - Page 11

Main
Drum:
The
Main
Drurl
from
the
Touch
transmits
to
the
Sub
Dt
um,
rJevers.
the
patterns
registered
I'
I
1
I
I
I
'
i
E
t
h
I
Sub
Drum:
The
Sub
Drum
memorizes
from
the
Touch
Levers,
the patterns
,
conveved
and
selects
the
neeil
es
via
the
Main
Drum
accordingly.
Sub
Drum
p
iece
Touch
Lever
(Scanninq
Finqer
.
in
a
hole
of
punch
Ca;d)
Touch
f,eve-r
(Scann
i
n9
Finger
hol
rn
a hole
of
punch
Card)
tj
.)
n
Main
Dtum
piece
Fig.
I
o