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2 definitions found
From:
Webster's Revised Unabridged Dictionary (1913)
Pul·ley
n.
;
pl
.
Pulleys
Mach.
A
wheel
with
a
broad
rim
,
or
grooved
rim
,
for
transmitting
power
from
,
or
imparting
power
to
,
the
different
parts
of
machinery
,
or
for
changing
the
direction
of
motion
,
by
means
of
a
belt
,
cord
,
rope
,
or
chain
.
Note:
☞
The
pulley
,
as
one
of
the
mechanical
powers
,
consists
,
in
its
simplest
form
,
of
a
grooved
wheel
,
called
a
sheave
,
turning
within
a
movable
frame
or
block
,
by
means
of
a
cord
or
rope
attached
at
one
end
to
a
fixed
point
.
The
force
,
acting
on
the
free
end
of
the
rope
,
is
thus
doubled
,
but
can
move
the
load
through
only
half
the
space
traversed
by
itself
.
The
rope
may
also
pass
over
a
sheave
in
another
block
that
is
fixed
.
The
end
of
the
rope
may
be
fastened
to
the
movable
block
,
instead
of
a
fixed
point
,
with
an
additional
gain
of
power
,
and
using
either
one
or
two
sheaves
in
the
fixed
block
.
Other
sheaves
may
be
added
,
and
the
power
multiplied
accordingly
.
Such
an
apparatus
is
called
by
workmen
a
block and tackle
,
or
a
fall and tackle
.
See
Block
.
A
single
fixed
pulley
gives
no
increase
of
power
,
but
serves
simply
for
changing
the
direction
of
motion
.
Band pulley
,
or
Belt pulley
,
a
pulley
with
a
broad
face
for
transmitting
power
between
revolving
shafts
by
means
of
a
belt
,
or
for
guiding
a
belt
.
Cone pulley
.
See
Cone pulley
.
Conical pulley
,
one
of
a
pair
of
belt
pulleys
,
each
in
the
shape
of
a
truncated
cone
,
for
varying
velocities
.
Fast pulley
,
a
pulley
firmly
attached
upon
a
shaft
.
Loose pulley
,
a
pulley
loose
on
a
shaft
,
to
interrupt
the
transmission
of
motion
in
machinery
.
See
Fast and loose pulleys
,
under
Fast
.
Parting pulley
,
a
belt
pulley
made
in
semicircular
halves
,
which
can
be
bolted
together
,
to
facilitate
application
to
,
or
removal
from
,
a
shaft
.
Pulley block
.
Same
as
Block
,
n.
6.
Pulley stile
Arch.
,
the
upright
of
the
window
frame
into
which
a
pulley
is
fixed
and
along
which
the
sash
slides
.
Split pulley
,
a
parting
pulley
.
From:
Webster's Revised Unabridged Dictionary (1913)
Split
,
a.
1.
Divided
;
cleft
.
2.
Bot.
Divided
deeply
;
cleft
.
3.
Exchanges
(a)
Divided
so
as
to
be
done
or
executed
part
at
one
time
or
price
and
part
at
another
time
or
price
; --
said
of
an
order
,
sale
,
etc
.
(b)
Of
quotations
,
given
in
sixteenth
,
quotations
in
eighths
being
regular
;
as
, 10
is
a
split
quotation
.
(c)
London
Stock
Exchange
Designating
ordinary
stock
that
has
been
divided
into
preferred
ordinary
and
deferred
ordinary
.
Split pease
,
hulled
pease
split
for
making
soup
,
etc
.
Split pin
Mach.
,
a
pin
with
one
end
split
so
that
it
may
be
spread
open
to
secure
it
in
its
place
.
Split pulley
,
a
parting
pulley
.
See
under
Pulley
.
Split ring
,
a
ring
with
overlapped
or
interlocked
ends
which
may
be
sprung
apart
so
that
objects
,
as
keys
,
may
be
strung
upon
the
ring
or
removed
from
it
.
Split ticket
,
a
ballot
in
which
a
voter
votes
for
a
portion
of
the
candidates
nominated
by
one
party
,
candidates
of
other
parties
being
substituted
for
those
omitted
. [U.S.]
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