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
724 THE MECHANICAL HANDLING OF MATERIAL
order to print the weight upon a ticket or roll of paper. The weight thus recorded is
determined solely by the machine and is beyond the control of the person who pulls
the printing handle.
Avery’s Colliery Tub Weighing Machine.—This machine is intended for
weighing ore, etc., in tubs, and is constructed to automatically register the number
of loads and total up the net weight of the same.
Fig. 1042 gives an illustration of this machine. It has a capacity of 2,500 lb.,
including; 700 lb. tare. It is self-contained, and is entirely constructed of iron, with a
Fig. 1042. Avery’s Colliery Tub Weighing Machine.
platform arranged to suit the length of the truck, and fitted with steel rails to a gauge
of say 18 in. Movable stops are affixed to the rails to prevent the tubs being moved
on or off the machine, the use of which is explained later.
The pillar mechanism is enclosed in a dust-proof wrought-iron case, fitted with doors
secured with locks and keys, so that some person in authority may obtain a record of
the weighings at any desired time, and have access to the mechanism as often as is