Engineering Wonders of the World
Volume I
Forfatter: Archibald Williams
År: 1945
Serie: Engineering Wonders of the World
Forlag: Thomas Nelson and Sons
Sted: London, Edinburgh, Dublin and New York
Sider: 456
UDK: 600 eng - gl.
Volume I with 520 Illustrations, Maps and Diagrams
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A NOTE ON THE VARIOUS SYSTEMS OF
CABLEWAYS.
The diagrams appended will serve to inform
the reader as to the four chief systems of
cableways commonly used to meet various
conditions of haulage. In each case the rope
which, carries the load is indicated by a thick
line, whereas a finer line stands for the haul-
ing rope. The letters s s = skips, attached
to carriers ; tt = the towers supporting the
cableway just described is a notable ex-
ample, is generally used for very long spans
over which loads ranging up to 5 tons have
to be transported. The carriers travel in one
direction on the one rope, and return over the
other rope, the transference being made by
means of a shunting rail.
System 3.—A single carrying rope, over
ropes ; d d = the drums communicating
motion to a moving rope ; t s = a tension
sheave by which a moving rope is kept at the
proper tension.
System 1.—An endless running rope with
carriers hanging therefrom. The carriers are
either (a) rigidly fixed to the rope, or (&) move
with it by frictional contact. The first sub-
which a single carrier is drawn to and fro by
an endless hauling rope. The double-headed
arrows indicate that tho direction cf the
hauling rope is reversed between every two
trips of the carrier. This system is most
suitable in situations where very heavy in-
dividual loads have to be moved over very
steep, long spans.
Hauling Rope______
System N°5.
s
System N°4-.
system is suitable for moderate loads and
for gradients not exceeding 1 in 3 ; the sec-
ond for moderate loads and very severe gra-
dients.
System 2.—Two fixed ropes to act as rails,
and a separate endless hauling rope travelling
always in the same direction to move the
carriers. This type, of which the Famatina
System 4 is practically a duplication of
No. 3, for use with two carriers, under similar
conditions. The descending load may be
utilized (as also in Systems 1 and 2) to draw
up a somewhat lighter load. Spans of 1,500
yards are used in this system.
[We are much indebted to Messrs. Bullivant and Company
of 72 Mark Lane, London, for the above information.}