DESCRIPTION
Machine 451K41 produces top quality, high speed,
lockstitching on
dresses,
skirts, shirts,
blouses,
bras
sieres, lingerie, ladies' overalls, children's
wear,
sports
wear,
rainwear,
uniforms,
aprons,
caps
and
ties
and
many
other
similar
light
and
medium
weight
garments.
Particularly
designed
for
"wash
and
wear"
mate
rials,
this
machine
has
the
following
characteristics:
Lock stitch (Stitch Type
#301)
Single
needle.
Catalogue
1361 (88x9)
Socket-type
needle
bar
Short
arm,
flat
bed
Drop
feed.
Pendant
link
feeding
mechanism with
reinforced
feed
bar
insures
level
feed
motion
and
uniform stitch
length
at
all
speeds.
Hinged
presser
foot
161066
Feed
Dog
149031
(19
teeth)
(22
teeth
to
the
Inch)
•I
It
149057
(21
II
) (
II II
11
II II
)
Throat
Plate
52033
for
149031
Throat
Plate
147150
for
149057
Enclosed
knee
lifter
rod
and
connections
to
knee
lifter
228710.
Modified, single rotary take-up maintains constant
thread
control
to
meet
hook
requirements.
Easy to
thread.
Simple to
adjust.
Long
point
rotary
sewing
hook
on
horizontal
axis
(belt
driven);
automatic
lubrication
can
be
regulated.
One
oil reservoir
and
three
easily
accessible oil
holes
serve
all principal
bearings
in machine.
Rotary tension
and
pre-tension devices
achieve
pre
cise thread control throughout speed range of stitching
with
all
types
of
natural
and
synthetic
threads
and
materials
of light
and
medium
weight—permitting
lightest
tensions
for
perfect
"wash
and
wear"
sewing.
Tension
guard,
mounted
on
face
plate,
protects
ro
tary
tension
from
broken
threads,
lint
and
other
hazards.
Two
thread
cutters; One, on face plate, prevents
wrapping
of broken
thread
around
rotary take-up.
The
other,
on
rear
of
thread
guard,
removes
excess
broken
thread
from
take-up.
Durable,
steel
-
reinforced,
rubber
driving
belt
270926,
from
arm
shaft
to
hook
driving
shaft,
is
readily
accessible
when
rear
arm
cover
is
removed.
Large rim,
aluminium
machine pulley
272227,
for
3/8
inch V-belt, is
designed
for
safety.
Outside
diam
eter
of
belt
groove,
2.9
inches.
Effective
diameter
for
5/16
inch
round
leather
belt,
2-3/8
inches.
Tapped
hole
and
seat
in
rear
of
arm
provided
for
mounting
a light
fixture.
Compact
stitch
length
mechanism
is
easy
to
read
and
to
set.
Maximum
length
of
stitch, 6 to
the
inch.
Needle
bar
stroke,
1-9/64
(1.140)
inches.
Presser
bar
lift (capacity of machine),
9/32
(.281)
inch.
Bed
dimensions:
Length,
15-11/16
inches.
Width
7
inches. Working
space
at
right
of
needle,
8 inches.
Double
shielded
ball
bearings
at
both
ends
of
arm
shaft
and
at
pulley
end
of hook driving shaft.
Needle
bearings
for
feed
driving
and
feed
lifting
connections
and
for
needle
bar
connecting
link.
Nylon
insert
bearings
for
feed
driving rock
shaft
and
feed
lifting rock
shaft.
Controlled
pressure
lubricated
bearings
on hook
shaft.
Machine
451K45
is
similar
to
Machine
451K41
ex
cept
for
these
special
features
. . .
• Reverse
feed,
hand
operated,
with
spring
return
to
forward
stitch. Performs precise tacking
and
strong
seam
reinforcing
with
minimum
thread
breakage.
•
Maximum
stitch
length,
6 to
the
inch
forward
and
7
to
the
inch
in
reverse.
•
Feed
dog
149031
•
Throat
plate
52033
• Machine pulley 276530: Large rim aluminium pul
ley
designed
for
safety.
Outside
diameter
of
belt
groove
2.9
inches. Effective
diameter
for
5/16
round
leather
belt,
2-3/8
inches.
Machine
451K145
is
similar
to
Reverse
Feed
Machine
451K45
except
for
these
special
features
. . .
• Designed for light,
medium
and
medium-heavy
fabrics.
• Long
arm
and
bed.
Bed
dimensions:
Length,
18-3/4
inches.
Width,
7 inches.
Working
space
at
right
of
needle,
11 inches.
•
Single
needle.
Catalogue
1969
(135x39).
•
Feed
dog
149366
•
Throat
plate
270326
•
Needle
bar
stroke,
1-5/16
inches
•
Presser
bar
lift,
5/16
inches.
CAUTION
Do
not
start
machine
until it
has
been
thoroughly
oiled,
OS
instructed on
pages
4, 5
and
6.
SPEED
Maximum speed recommended is
5000
stitches per
minute,
with
these
exceptions
. . .
• Run a
new
machine
at
a
more
moderate
speed
the
first
few
days.
• A
machine
that
has
been
idle,
for
a long
period
of time, should be run slower
than
maximum
speed
for
the
first
few
minutes
to
allow
time
for
oil
to
reach
the moving ports. Check principal bearing points for
freedom
of
movement
and
adequate
lubrication be
fore
running
machine
at
top
speed.
• Reduce
speed
of machine
when
sewing closely
woven
or
treated
material.
Maximum efficient
speed
is
dependent
upon
the
nature of the operation, the ability of the
operator
and
the type of
thread
and
material in use.
Never force machine beyond its maximum efficient
speed for the work being accomplished. Disregard of
this precaution could result in considerable
damage
to
machine.
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