AppendixD
ROTARY
DRILL
LINE
On a rotary
drilling rig,
it
is the wire rope used for
raising and lowering the drill pipe,
as
well
as
for controlling its position.
ROTATION RESISTANT
ROPE
A
wire rope consisting
of
an inner layer
of
strand laid in one direction covered by a
layer
of
strand laid in the opposite direc-
tion. This has the effect
of
counteracting
torque by reducing the tendency
of
fin-
ished rope to rotate.
ROUND
WIRE
TRACK
STRAND
Strand
composed
of
concentric layers
of
round WIRES, used
as
TRACK
CABLE, sometimes called
SMOOTH-
COIL
TRACK STRAND.
SAFE
WORKING
LOAD
This term is
potentially misleading and is, therefore,
in disfavor. Essentially, it refers to that
portion
of
the rope's minimum breaking
force that can be applied either to move
or
sustain a load.
It
is misleading
because
it is only valid when the rope
is
new and equipment
is
in good condition.
SAND
LINE
Generally a 6x7 wire rope
that is used in well servicing.
SEALE
The name for a type
of
strand
pattern that has two adjacent layers laid
in one operation with any number
of
uni-
form sized wires in the outer layer, and
with the same number
of
unifOllli but
smaller sized wires in the inner layer.
SEIZE
To make a secure binding at the
end
of
a wire rope
or
strand with SEIZ-
ING WIRE or SEIZING STRAND.
SEIZING
STRAND Small diameter
STRAND usually made up
of
7 wires.
SEIZING
WIRE
A wire for seizing.
SERVE
To
cover the surface
of
a wire
rope or strand with a fiber cord or wire
wrapping.
SHACKLE
A
U-
or anchor-shaped fit-
ting with pin.
SHEAVE A grooved pulley for wire
rope.
SLING,
WIRE
ROPE
An assembly
fabricated from wire rope which con-
nects the load to the lifting device.
SLING,
BRAIDED
A flexible sling,
the body
of
which is made up
of
two or
more WIRE
ROPES braided together.
SMOOTH-FACED
DRUM
Drum with
a plain, ungrooved surface.
SOCKET
Generic name for a type
of
wire rope fitting.
SPIRAL
GROOVE
A continuous heli-
cal groove that follows a path on and
around a drum face, similar to a screw
thread.
SPLICING
1)
Making a loop or eye in
the end
of
a rope by tucking the ends
of
the strands back into the main body
of
the rope. 2) Formation
ofloops
or eyes
in a rope by means
of
mechanical attach-
ments pressed onto the rope. 3) Joining
of
two rope ends so
as
to form a long or
short splice in two pieces
of
rope.
SPRING
LAY See
LAY,
TYPES.
STAINLESS
STEEL
ROPE
Wire rope
made up
of
cOTI'osion
resistant steel
wires.
STIRRUP
The eyebolt attachment on a
bridge socket.
Wire Rope Technical Board - Wire Rope Users Manual, Fourth Edition
-139
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