The Mechanical Handling and Storing of Material
Forfatter: A.-M.Inst.C E., George Frederick Zimmer
År: 1916
Forlag: Crosby Lockwood and Son
Sted: London
Sider: 752
UDK: 621.87 Zim, 621.86 Zim
Being a Treatise on the Handling and Storing of Material such as Grain, Coal, Ore, Timber, Etc., by Automatic or Semi-Automatic Machinery, together with the Various Accessories used in the Manipulation of such Plant
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290
THE MECHANICAL HANDLING OF MATERIAL
Ropeways Erected by Bleichert’s Aerial Transporters, Ltd.
A typical loading terminal or station by this firm is shown in Figs. 417 and 418.
Two arrows at the left of the diagram indicate the direction of the haulage rope, and
therefore the side at which the empty buckets arrive and the full ones depart. The two
rail ropes have their last support at the first cross-beam of the wooden structure, with
a diversion to the centre, and are anchored at the second cross-beam, so that the
shunt rails start and return from and to this last support. In the third bay, that is
between the third and fourth cross-beams, the buckets are automatically uncoupled.
Here a man receives a bucket, pushes it along the shunt rails to one of the four
outlets of the ore pockets, and when full conducts it to the third bay again, just opposite
to where the uncoupling took place, and here the full bucket is again coupled to the
Figs. 417 and 418. A Typical Loading Station.
haulage rope, and left to proceed on its journey; the man now steps over to the other
side again and is ready to receive the next bucket.
The two terminals of a short double ropeway of the Chilian Copper Mine of
Catémou are shown in Figs. 419 to 423. The line is worked by gravity, three brakes
being used at the upper terminal to adjust the speed of travel to between 10 and 20 ft.
per second. On each of the two rail ropes there is only one bucket, and this is fixed
to the rope, and adjusted in such a position that when the one bucket is under the
loading shoot of the upper terminus, the other is just over the delivery silo of the
lower terminus. As soon as the bucket is full it receives a slight push and descends,
pulling the empty bucket up on the other rope, so that the buckets have to be filled
alternately from the silos arranged on either side of the top terminal. Although the
line is short and of small capacity it is interesting as it has a single span of 1,115 nr.,
or 3,657 ft., which is probably the longest single span yet employed.