Singer 66-1 - Page 7

r"
I
I
t
I
I:
i
ibe
10
Tensions
tr'or
ordinary
stitching
the
locked
in
the
centre
of
the
upper
and
under
thickness
of
the
threads
should
material,
thus:
Frc.
t2.
ppRrpcr
Srrrcu
If
the
tension
on
the
upper
thread
the
under
thread
is
too
toore
ihe
thread
upper
surface
of
the
material,
thus:
If
the
tension
on
the
under
thread
is
tne
upper
thread
is
too
l;*q-;#,h*r;
the
under
side
of
the
material,
thus:
is
too
tight,
or
if
that
on
will
lie
straight
along
the
too
tight
or
if
that
on
will
lie
straight
along
Frc.
18.
Tlcnr
Upppn
TpNsrou
Flc.
14.
Loosp
Upppn
Teusror.r
To
Regulate
the
Tensions
The
upper
tension
is
released
and
inoperative
when
the
presser
bar
is
raised,
and
restored
when
it
is
let
down;
having
lowered
the
presser
bar
lifter,
turn
the
sma,
thumb
nut
(see
Fig.
10)
in
["il;f,Jfrfffi:[Sffio.,*
to
the
right
to
increase
the
tension,
The
tension
on
the
under
thread
is
regulated
by
the
large
-
scre\4/
which
is
nearest
the
back
in
the
nonni"
ou**
tension
spring;
using
the
small
screw
driver
turn
over
toward
you
to
increase
the
tension
or
from
you
to
diminish
it.
when
the
lower
tension
has
been
once
properly
adjusted
it
is
seldom
necess
ary
to
c-hange
it,
as
a
correct
stitch
Lan
usually
be
obtained
by
varying
the
,ipp.,
tension.
L1
To
Set
the
Needle
Turn
the
lrttllrncc
wheel
over
toward you
until
the
needle
bar
moves
up, to
its
highest
point;
loosen
the
screw
in
the
needle
c!}P-and
put
the
neeclle
',up
into
the
clamp
as
far
as
it
will
go,
with
the
flat
side
of
its
shank
toward
the
rigt
i,
hr.n
screw
fast.
To
Alter
the
Length
of
Stitch
On the
front
of
the
arm
near
the
bobbin
winder
is
a
large
thumb
screw;
turn
it
over
to
the
right
to
make
the
stitch
longer,
or
to
the
left
to
make
it
shorter.
To
Turn
a
Corner
Stop
the
machine
with
the
needle
at
its
Iowest
point.
Raise
the
pres.ser
foot
and
turn
the
work
as
desired,
using
the
needle
as
a
pivot.
'To
change
the
Pressure
on
Material
For
ordinary
family
sewing
it
is
seldom
necess
ary
to
change
the
pressure
on
the
material.
If
sewing
fine
silk
or flimsy
material,
Iighten
the
pressure
by
giving
the
thumb
screw
on
the
top
of
the
head
of the
rrl&t:hine
two
or
three
turns
to
the
leit.
To
increase
the
pressure
turn
it
to
the
right.
The
pressure
should
be
only
heavy
enough
to
prevent
the
material
from
rising
with
the
needle
and
to
enable
the
I'eed
to
move
the
work
along
Jvenly;
; fr.-vier
pressure
would
mitkc
the
machine
run
hard
urd
b.
of
no
benefit.
To
Sew
Flannel
or
Bias
Seams
Use
a
short,
st,ifch
and
as-light
a tension
as
possible
so
as
to
leave
the
t,ltrt':ul
loose
enough
to
stand
the
*t*ai1
oi-tt
u
stretching
of the
gootls.
A
Stitch
to
Ravel
Easily
can
be had
if
tle'sit'ctl,
ll.,
making
the
upper
tension
so
light
thatthe
under
thread
will
nol r
lr'rrw
into
the
gobO.
but
lie
straight,
as
sliown
in
Fig.
74.