Appendix D A GLOSSARY
OF
ABRASION
Frictional surface wear
on
BECKET
1,001)1 A
ofsmaH
rope
the wires
of
a wire rope.
or
strand fastened to the end
of
a
wire rope; its function is to facilitate
ACCELERATION
STRESS
The Ilddi- wire rope installation.
tional stress that is
,."onn,";>rl
on
a
wire
rope as
11
result
of
an
increase in the
bad
velocity.
AGGREGATE
STRENGTH
The
cal-
culated strength derived the
individual
of
the ele-
ments
of
the strand or rope.
111is
strength does not give to the
reduction in
resulting from the
angularity
of
the elements in the rope,
or
other factors that may affect
AIRCRAFT
,,-·n
.
.JULI.DL1'
Strands, cords
and wire rope made
of
wire, designed for use
in
vari-
ous aircraft industry applications.
ALTERNATE
LAY
See TYPES.
AREA,
METALLIC
Sum
of
the cross-
sectional areas
of
all the ,'vires either in a
wire rope
or
ill a strand.
BACK-STAY
Wire rope
or
strand guy
used to support a
boom
or
mast;
or
that
section
of
a main as on a suspen-
sion bridge, cableway, etc., from
the tower to the
UU',HU"",.',V
BAIL
a)
U-shaped
member
of
a
IIm
...
ue;!..
or
b) U-shaped
of
a socket
or
other fitting used on wire rope.
BASKET
OF
SOCKET
The
conical
portion
of
a socket into 'which a
is
inserted and then
secured.
BECKET
An
end
attachment
to
facili-
tate wire rope installation.
132 • Wire Rope Technical Board
-'
Wire Users
Fourth Edition
BENDING
Stress that is
Inlnr.",'{j
on lhe wires
of
a strand or rope
or action.
BIRDCAGE
A
tive
of
the appearance
of
a wire rope
forced
into
The
outer
stnHlds form a
caJ?e
at
dis-
the core.
BLOCK
A term
C""'JlH
•.
U.
to one
or
more
wire rope sheaves (pulJeys) enclosed in
side and fitted with some attach-
ment such as a hook
or
shackle.
BOOM
LINE
Wire rope that
of
der-
etc
UOOM
PENl>ANT
A
nrm.~nnp
rope
or
strand with end terminations to
the
boom.
BREAKING
:FORCE
is
the
ultill1.ate
load
at
which a tensile failure occurs in the sam-
of
,'lire rope being tested.
Minimum is that
~vhich
is
2-1/20h
lovver
than the
of
a wire rope.
lr.,fininwm
sam-
a standard proce-·
dure
that is the wire rope
The
vvire
rope manufacturer
wire rope
to
this and the
user should consider this value wben
calculations.
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