ANCHORS AND CABLES 121

the pin does not project beyond the width of the shackle, and is secured
by a hard wood plug passing through the pin and one lug of the shackle.
The anchor shackle is larger than the joining shackles, and the pin
projects through the lug on one side, being secured by a ring or forelock.
In some of the latest ships there is no difference.

The lengths of cables are marked in succession as follows:—At the
first shackle (15 fathoms) by a piece of seizing wire on the stud of the
first link abaft the shackle; at the second shackle (30 fathoms) by a
piece of wire on the second studded link abaft the shackle; at the third
shackle (45 fathoms) by a piece of wire on the third studded link, and so
on.

All the marked links are sometimes painted white so that they
may be more easily noted when the cable is running out.

Fig 10.—Senhouse Slip.
The inboard end of the cable is generally shackled to a good eyebolt
in the collision bulkhead at the bottom of the chain locker. A lashing
of small chain is sometimes used, and is better than the shackle as ifc
can easily be let go in case of emergency, although a Senhouse slip link
is best.
INSPECTION OP ANCHORS AND CABLES.
Vessels undergo a periodical survey every four years by one of the
two classification societies, Lloyd's or the British Corporation, under
which British vessels are registered. The hull, machinery and deck
equipment are then inspected. The chain cables are ranged for inspection
and anchors and chains examined and placed in good working order.
If any length of chain cable is found to be reduced in mean diameter by
10 per cent, of its original size at its most worn part it is to be renewed.
The chain locker is examined internally.
The cable is ranged in long lengths up and down the bottom of the
dry dock, pins of shackles knocked out and examined, coated with
white lead and tallow and replaced with new wooden holding pins
driven into the pins of the connecting shackles. The Unfea are sounded