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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THE AUTOMATIC WEIGHING OE MATERIAL
725
necessary. Attached to the side of the pillar is a wrought-iron hand lever for actuating;
the movable stops on the rails. Inside the pillar is fitted an automatic self-registering;
mechanism which will record the total net weighings during twenty-four hours or any
other given time, up to 1,000,000 lb., by divisions of 25 lb., the net weight of each
load not exceeding 1,800 lb. A counter is also attached to the inside of the pillar to
automatically record the number of trucks passed over the machine.
The method of using is as follows : Assuming that the machine is empty, and^that
the truck coming towards it is in the direction of the arrow, the stops a a being open
will allow the truck to come on to the platform until it reaches and is blocked by the
stops b b. Before the next truck can come on to the machine, the hand lever must be
pushed back, when the operation described above may be repeated. By the mere
manipulation of lever c, the attendants can keep an accurate record of the total number
of weighings, which is, of course, a register of the number of trucks passed over the
machine as well as an account of the net weight of each.
All the tubs would, of course, have to be adjusted to a given tare, so that the
weighings would be registered as the absolute net weight of the material in the trucks
passing over the machine. Should the total weight be likely to exceed 1,000,000 lb.
in the given period, the mechanism could be adapted to register 10,000,000 lb. or more
if required.
Avery’s Patent Automatic Overhead Weigher and Totalises—Figs.
1043 and 1044 show a machine very similar to the Automatic Weighbridge described
above, but it is designed to suit an overhead track. It can be attached to runways
of all descriptions, and is especially suitable for weighing buckets carried by a ropeway.
This machine is also fitted with a totalling counter which automatically registers the
net weight of material carried ; the number of weighed buckets is also recorded.