Improvements in and relating to Automatic Weighing Apparatus.
Year: 1891

page_text: Date of Application, 2nd Dec., 1891
Complete Specification Left, 30th Aug., 1892-4ccepted, 5th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Automatic Weighing Apparatus.
I, CARL REUTHER of Hennef on the Sieg in the Empire of Germany,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
My invention relates to automatic weighing apparatus; and the object of the
same is to ascertain the weight of that part of the material to be weighed which is
required to make up a complete charge or load, without taking off the weights from
the platform.
For this reason I make use of a separate or auxiliary scale beam which I attach
either to the platform for the weights or to a rod for supporting the receptacle for
the material to be weighed, in such a manner that it will not effect the regular
working of the automatic weighing apparatus. If however, after the weighing of a
larger quantity of material, such as grain, a portion is next received within the
receptacle of the apparatus which does not reach the desired weight, corresponding
with the weights on the platform of the main scale-beam, it is only necessary to
balance the said auxiliary scale-beam by loading the same either by shifting a
sliding-weight on the beam correspondingly, or by otherwise loading the said
auxiliary scale-beam until the equilibrium of the main scale-beam of the weighing
apparatus is obtained. Thus the difference of the weight, with which the apparatus
is permanently charged, and that required for equilibrating the said auxiliary scale-
beam gives exactly the weight of the remainder of the material within the receptacle
of the weighing apparatus.
Dated this 2nd day of December 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant,
COMPLETE SPECIFICATION.
Improvements in and relating to Automatic Weighing Apparatus.
I CARL REUTHER of Hennef on the Sieg in the Empire of Germany
Manufacturer do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
My invention relates to improvements in that class of weighing apparafus in
which the receptacle for receiving the material to be weighed empties itself auto-
matically each time a given weight corresponding to that with which the scale
beam is constantly charged, is put into the scale and the object of my invention is
to provide means for determining while the weight on the seat remain unaffected,
the weight of such remaining portions of the material to be weighed which do not
constitute a full charge.
I attain this object by the mechanism illustrated in the accompanying drawing
in which :-
Figure 1 is a side elevation of an automatic weighing apparatus embodying my
invention, the mechanism for effecting the automatic emptying of the receptacle
and the recording of the same not being part of my improvements are not shown
herein the said invention forming an attachment which may be adapted to any
weighing apparatus of the class referred to and
Figure 2 is a side view of the same apparatus showing a modification of the
mechanism forming the subject-matter of my invention.
Similar letters refer to similar parts throughout the several views.

page_text: A is the scale beam B the receptacle for receiving the material to be weighed,
and C the seat for the weight of an automatic weighing apparatus of known
construction. On the frame of such apparatus I mount a standard f1 which is
provided at its top with a hardened surface or pan g for the knife edge of a
separate scale beam a to rest on, Figure 1. An upward pointing knife edge b of
this scale-beam is designed to bear against the downward projecting pan e con-
nected to the weight seat C of the automatic weighing apparatus under the influence
of a sliding weight e on the scale beam. The latter is further provided with a
counterweight which serves to balance the load of a seat e¹ Figure 2 or that of
the weight e in its position on the zero mark of the scale beam a.
If therefore, after the weighing of a larger quantity of material such as grain a
portion is received within the receptacle B of the automatic weighing apparatus
which does not amount to a full charge corresponding with the weight on the
seat C it is only necessary to shift the sliding weight e on the auxiliary scale
beam a or by otherwise loading the same until the latter, as well as the main scale-
beam equipoises. Thus the difference of the weight on the seat C and that
required for equipoising the scale beam a gives exactly the weight of the remaining
material in the receptacle B to be determined by means of my invention. This
will be easily understood by way of an example. Assuming the automatic weighing
apparatus is weighted to discharge a weight of five hundred pounds every time the
main scale beam A equipoises, while the supply stops, the seat C is to be loaded
with weights amounting, also, to five hundred pounds. If however the weight of a
remaining portion forming only a part of five hundred pounds is to be determined
and there are two hundred and fifty four pounds required to accomplish the
equilibrium of the weighing apparatus in case of a leverage of one to one hundred
of the scale-beam a or the sliding weight e on the latter to be shifted until it points
upon two hundred and fifty four pounds on the lever scale the actual weight of the
remaining material within the receptacle B is five hundred less two hundred and
fifty four, or equal to two hundred and forty six pounds.
เ
In Figure 2 is illustrated a modification of the herein described mechanism
inasmuch as the auxiliary scale-beam a is attached to the receptacle B of the
automatic weighing apparatus through the medium of the suspension rod upon the
lateral projecting pan c of which rests the knife edge b of the scale beam a the knife
edge of the same pointing in this case upwardly and the standard f' being corre-
spondingly altered. Although a sliding weight may also be employed with the
scale-beam a as in the former case, I have attached to the latter a seat el for the
reception of variable weights e which is suspended by the knife edge d at the end
of the scale-beam. Notwithstanding this modified arrangement of the auxiliary
scale the mode of determining the weight of remaining portions of the material to
be weighed and run into the receptacle B will be the same as above described.
Instead of being connected with the seat for the weights or with the receptacle
for the material the scale beam a may also act directly upon the scale beam A
without departing from the nature of my invention.
During the operation of the automatic weighing apparatus with full charges it is
desirable to set the auxiliary balance at rest, either by removing it entirely or by
arresting the weighted arm of the scale beam a in such a position that the pans c of
the up-and-down moving receptacle B or seat C may not interfere with the knife
edges 6 of the scale beam a.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In an automatic weighing apparatus of the class described, means for
determining the weight of a fraction of a load in the receiving-vessel without
varying the load on the scale beam, which consists in the combination, with the
main scale beam A. and vessel B of an auxiliary scale beam a and a weight or 5
weights adapted to be connected therewith said auxiliary scale-beam operating to

page_text: counter balance both the load on the main scale beam and the load in vessel Bas
set forth.
2. In an automatic weighing apparatus of the class described, means for
determining the weight of a fraction of a load in the receiving vessel without
varying the load on the scale beam which consists in the combination with the main
scale beam A and vessel B of an auxiliary scale beam a adapted to be influenced
by the load in said vessel and to influence the load on the main scale beam by
acting directly upon such load and a weight or weights for connection with the
auxiliary scale beam to counterbalance both the load on the main scale-beam and
the load in the receiving vessel as set forth.
Dated this 30th day of August 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.