Engineering Wonders of the World
Volume III
Forfatter: Archibald Williams
År: 1945
Serie: Engineering Wonders of the World
Forlag: Thomas Nelson and Sons
Sted: London, Edinburgh, Dublin and New York
Sider: 407
UDK: 600 eng- gl
With 424 Illustrations, Maps, and Diagrams
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260
ENGINEERING WONDERS OF THE WORLD.
for unloading, and also for stocking and re-
handling, consists of a large bridge having a
cantilever extension at one end for reaching
over two or more railway lines or out over
lower inside flanges of the bridge, and is rope
operated—that is, the motions are transmitted
by ropes to the trolley from hoisting and travel-
ling mechanism contained in the front tower.
a quay. The other
Another Type , • , ,
. / end is supported "
of Unloader.
upon an A-frame
standard. A trolley, carrying an
automatic bucket, runs upon the
A MODERN BLAST FURNACE OUTFIT.
In tho foreground are the gas cleaners;
beyond them is the blast furnace (ribbed);
to the right are the stoves for heating the
air blast; to the left the inclined rails up
which, cars of ore, coke, limestone, etc.,
travel to the top of the furnace.