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Singer 321 KNITTER - Page 11

Singer 321 KNITTER
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7
MECHANISM
OF
NEEDLE
SELECTION
AND
FUNCTION
OF
EACH
MAIN
PART
III
-a
Punched
Card
The
punched
card
is
made
of
vinyl
chloride
and
has
many
round
punched
holes
representing
a
pattern.
0
0
0
0
0002Loo
g
go
Roog00000g000m
a
0
05
8
8
8
8:
8
81:
000°00
isqgg
gssqo
§M§
g
o
gq888
,0000
o o
8868880000000000000
111
.
Fig.
7
III
-b
Pattern
Unit
Pattern
Unit
reads
a
pattern
on
a
punched
card
and
conveys
it
to
Drum
on
the
carriage.
When
the
carriage
is
operated,
Under
Lever
in
pattern
unit
is
lifted
by
Under
Cams
attached
to
the
right
and
left
sides
of
the
rear
of
the
carriage,
with
Touch
Levers
moving
in
the
arrowmarked
directioh
by
spring
action.
Under
Lever
Fig.
8

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