Britain at Work
A Pictorial Description of Our National Industries
År: 1902
Forlag: Cassell and Company, Limited
Sted: London, Paris, New York & Melbourne
Sider: 384
UDK: 338(42) Bri
Illustrated from photographes, etc.
Søgning i bogen
Den bedste måde at søge i bogen er ved at downloade PDF'en og søge i den.
Derved får du fremhævet ordene visuelt direkte på billedet af siden.
Digitaliseret bog
Bogens tekst er maskinlæst, så der kan være en del fejl og mangler.
BRITAIN
AT WORK.
machine. If it is not absolutely according to
the drawing it will not rivet When it is
fitted and screwed upon the frames the
riveters come along and rivet plate to plate
and frame, and after the riveter follows the
tester, who “chalks” every rivet which is not
perfectly driven ; these have to come out.
Then the iron caulkers hammer the edges
of the plates; and by-and-by the hull is
watertight. Tanks, castings, and steel decks
are treated similarly, and the joiners go
aboard with the fittings that have accumulated
in the flats.
When a liner of any size reaches this stage
of her construction, the
number of men at work
on her may be anywhere
Photo ; Lafayette.
A GREAT LINER NEARLY READY FOR
LAUNCHING AT BELFAST.
between 1,000 and 1,500. There is, of
course, a limit to the staff which may be
employed profitably on a single ship, but
I have seen considerably over 1,000 at work
on the Celtic without the slightest sign of
overlapping.
A great deal of the staging and some of
the uprights are removed when the ship is
wholly plated, and a little army of painters
is set to work on the hull. The shipwrights
effect further clearances below the bilges, and
put down what are called “ standing ways.”
Over these—with a liberal coating of tallow
between, of course—are laid “ sliding ways,”
and stout cradles are built under the ship
forward and aft.
Some time before the launch the wedges
below the bilges are displaced, and the vessel,
through the cradles, rests practically on the
sliding ways. The means used to keep the
sliding ways in these circumstances from
acting up to their description vary in different
districts. At Messrs. Harland and Wolff’s
the practice is to hold the sliding ways by
a hydraulic apparatus, from which the
pressure is withdrawn when “ All clear ” is
signalled. The ordinary method is, however,
to let lengths of wood called “ daggers ” into
niches in both standing and sliding ways,
and to force them out by blows from heavy
weights. That
is what hap-
pens when
the lady who
names the ship cuts the mystic cord or
ribbon—she releases the weights,
o
Vessels are rarely in a hurry to leave the
ways, and the first minute of their freedom
represents a rather distressing time for their
builders. Nearly all ways have a camber in
them, to make progress along them easy, and
a jack is used under the forefoot of a vessel
to throw the weight gradually over it. The
woodwork of the cradles creaks ominously as
the pressure is applied, and then loud cheers
greet the first movement of the huge mass of
steel. It gathers way as it proceeds towards
the water, and when the tide bears it all it is
“ checked ”—brought slowly to a standstill,
that is—by means of chains whose shore ends
are anchored in the yard.
Tug-boats, which have stood by all day,
tow the new vessel to her fitting-out wharf,