Improvements relating to Automatic Weighing Apparatus.
Year: 1894

page_text: Date of Application, 18th Oct., 1894.
Complete Specification Left, 15th July, 1895-Accepted, 18th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements relating to Automatic Weighing Apparatus.
I, MICHAEL EDUARD REISERT, 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 improvements in automatic weighing apparatus, such as
used for weighing coarse or granular and irregular sized material, in which the
material to be weighed passes from a hopper into a receptacle, which when properly
filled empties itself automatically in a well known manner, while the weight of
each charge or load in the receptacle is registered by a registering mechanism.
In such weighing apparatus the material is allowed to pass into the said receptacle
until the desired weight is obtained and the supply is there cut off by a gate
beneath the supply funnel.
The object of this invention is to relieve the scale from the action of the vis viva
of the material entering the receptacle in order to secure the greatest correctness
in weighing and an exact working of the apparatus when the scale-beam equippises.
To carry this invention into effect the frame of the weighing apparatus is
provided with a revoluble hook which is adapted to engage with a lug or eye of
the hanger, suspending, the receptacle from the scale-beam, directly after the
mechanism arresting the gate beneath the hopper in its open position is released,
and thereby setting the scale at rest. As however in the next moment the said
cut-off gate being closed a suitable finger attached thereto strikes against an arm
of the said revoluble hook just before the cut-off gate has arrived at the end of its
race and thereby causes the hook to quit the hanger, whereupon the receptacle is
allowed to descend until the scale-beain is in equilibrium and the registering device
properly actuated.
In many cases it is however required to extend the time which elapses from the
closure of the cut-off gate to the releasing and discharging of the receptacle of
the weighing apparatus, in order to allow the scale-beam to properly occupy the
position of equilibrium.
I therefore interpose between the cut-off gate beneath the hopper and the usually
employed weighted lever, which is designed to act upon the arresting device of
the receptacle in such a manner that the contents of the latter will not be
prematurely discharged, a tubular weighted lever inclosing a ball or other rolling
weight and connected in a suitable manner to the said cut-off gate. This weighted
lever rests with its free end upon a double armed lever pivoted to the frame of
the weighing apparatus, the one arm of which extending through a slot of the
tubular weighted lever into the path of the said ball or other rolling weight
enclosed therein while the other arm is adapted to engage with a projection of the
said weighted lever which acts upon the arresting device of the receptacle during
the emptying period of the latter. During the filling period, that is to say, while
the cut-off gate is open, the said tubular weighted lever occupies an inclined
position in one direction and when the said cut-off gate is closed in the other
direction. In consequence of the closure of the cut-off gate the said tubular lever
is turned from one inclined position into the other, whereby the ball or other
rolling weight therein enclosed runs from the upper end within the tubular lever to
the lower end and into reach of the said double armed lever, which is thereby
caused to swing about its fulcrum and to liberate the said weighted arresting lever,

page_text: so that the latter may release the arresting device of the receptacle, in order to
allow the contents of the latter to be discharged. The interval of the time
however, which has elapsed while the ball has run from one end of the said tubular
lever to the other, is quite sufficient, to allow the scale-beam to tranquilly equipoise.
Dated this 18th day of October 1894.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C.; Agents for the Applicant.
I, MICHAEL EDUARD REISERT, of Hennef-on-the-Sieg, in the Empire of
Germany, Manufacturer, do hereby declare the nature of this invention and in what
mauner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
My invention relates to improvements in automatic weighing apparatus, such as
used for weighing coarse or granular and irregular sized material, in which the
material to be weighed passes from a hopper into a receptacle, which when properly
filled empties itself automatically in a well known manner, while the weight of each
charge or load in the receptacle is registered by a registering mechanism. In such
weighing apparatus the material is allowed to pass into the said receptacle until
the desired weight is obtained and the supply is then cut off by a gate beneath the
supply funnel.
The object of this invention is to relieve the scale from the action of the vis viva
of the material entering the receptacle in order to secure the gratest correctness in
weighing and an exact working of the apparatus when the scale-beam equipoises.
In the accompanying drawing
Figure 1 is a side elevation partly in section of the improved apparatus with the
parts in the position they occupy just before the cut off gate is closed and
Figure 2 is a similar view showing the parts in the position they occupy when
the cut off gate is open and the grain is being fed into the receptacle.
In carrying this invention into effect the frame a of the weighing apparatus is
provided as shown with a revoluble hook D which is adapted to engage with a lug
or eye c of the hanger b suspending the receptacle B from the scale-beam A,
directly after the hereindescribed mechanism for arresting the gate G in its open
position is released, and thereby setting the scale at rest.
Just before the cut-off gate G arrives in its closed position a suitable finger f
attached thereto strikes against an arm d of the revoluble hook D thereby causing
the said hook D to be disengaged from the hanger b, whereupon the receptacle is
allowed to descend until the scale-beam A is in equilibrium and the registering
device X properly actuated.
The mechanism for actuating, that is to say, for opening, arresting and closing
the cut off gate G may preferably consist of a toggle L P P connected with the
gate G by means of an arm F and acted upon by a bent lever H which is under
the influence of the weight scale C or of the right hand end of the scale beam A
respectively. When the weight scale C after the receptacle B has been emptied
by tilting over descends into its lower position the end of the scale beam A presses
upon the bent lever H see Fig. 1 which latter presses upon the toggle or articulated
lever L P P which by means of the lever Land arm F will operate to raise and
open the cut off gate G towards the right so far as the descending weight scale C
or its stop C will allow it. During the supply of the material through the
hopper E the cut off gate is retained in its open position. As soon as the
receptacle is properly filled the scale beam comes in equipoise again. By this
ascending motion of the scale beam and the weight scale, the bent lever H is freed

page_text: from the said downward pressure, the thus released toggle L P P¹ is thereby caused
to move towards the left hand side (as shown in Fig. 1 of the drawing), whereby,
the cut off gate G is liberated, drops and closes the hopper E. Just before
the cut off gate G has occupied its closed position the finger fattached to the
gate G causes the hook D to quit the lug c of the hanger 6 as already described
above.
"
In automatic weighing apparatus of the class herein referred to, care should be
taken that the contents of the receptacle B is not prematurely discharged, but that
immediately after the closure of the cut-off gate G of the supply-funnel E the
said receptacle will first accomplish its descending movement before tilting to
discharge the contents thereof. This object may be attained in a well known
manner by means of a weighted lever N, pivoted to the frame a, which is adapted
to be first released by the gate G or is first brought into the tilting position through
the medium of a slotted rod O and then to act by its momentum upon an arresting
device, as M Figure 1, so as to trip and disengage the latter from a projection m
on the receptacle B, thus allowing the latter to tilt or turn on its knife-edges to
discharge the coutents. The length of the slot in the rod O is in this case so
adjusted, that the cut-off gate G, while opening freely the supply funnel, can raise
the lever N into the tilting position from which it returns by its own energy into
the position of rest Figure 2, and further, that although the gate can accomplish
Treely the required movement for closing the supply funnel Figure 1, for the last
part of its movement the rod O can turn the weighted lever N so far, that the
latter is enabled to tilt and to act by its momentum upon the arresting device M
for the described purpose.
In many cases it is however required to extend the time which elapses from the
closure of the cut-off gate G to the releasing and discharging of the receptacle of
the weighing apparatus, in order to allow the scale-beam to properly occupy the
position of equilibrium.
I therefore arrange in connection with the cut-off gate G and the weighted
lever N which is designed to act upon the arresting device of the receptacle B in
such a manner that the contents of the latter will not be prematurely discharged,
a tubular weighted lever K enclosing a ball J or other rolling weight and connected
in a suitable manner for instance by means of an arm to the cut-off gate G.
This weighted lever K, rests at or near its free end upon a double armed lever u,
pivoted at to the frame of the weighing apparatus, the one arm of which
extending through a slot K' of the tubular weighted lever K into the path of the
ball or other rolling weight enclosed therein while the other arin is adapted to
engage with a projection or shoulder n of the weighted lever N which engages
with the arresting device M of the receptacle B during the emptying period of the
latter.
During the filling period, that is to say, while the cut-off gate G is open, the said
tubular weighted lever K occupies an inclined position in one direction (Figure 2)
and when the said cut-off gate is closed, in the other direction as shown by dotted
lines in Fig. 1. In consequence of the closure of the cut-off gate & the tubular
lever K is turned from one inclined position into the other, whereby the ball or
other rolling weight therein enclosed runs from the upper end within the tubular
lever to the lower end and into reach of the doubled armed lever u, which is thereby
caused to swing about its fulcrum i and to liberate the weighted arresting lever N,
so that the latter by its tilting over may lift the arresting hook M pivoted to the
hanger or suspension rod b from the projection m of the receptacle B thus causing
the latter to tilt over and to discharge or pour out its contents. The interval of
the time however, which has elapsed while the ball has run from one end of the
tubular lever K to the other, is quite sufficient, to allow the scale-beam to tranquilly
equipoise.
s
After the receptacle B has discharged its contents all parts of the apparatus
will return to their initial position in a manner well known in automatic weighing
apparatus and therefore not particularly described herein.
:

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the' same is to be performed, I declare that what
I claim is :-
1. In an automatic weighing apparatus, means for relieving the scale from the
action of the vis riva of the material entering the receptacle which consists in the
combination of a revoluble hook (D d) adapted to engage with a lug or eye (c) of
the hanger (b) suspending the receptacle (B) from the scale-beam, with a suitable
finger (f) attached to the cut-off gate (G) and adapted to disengage the said hook
from the hanger, substantially as and for the purpose specified.
2. In an automatic weighing apparatus means for extending the time elapsing
between the closure of the cut-off gate and releasing of the receptacle which
consists in the combination of a tubular lever (K) being connected by suitable
means to the cut-off gate (G) and enclosing a ball (J) or other rolling weight, with
a double armed lever (u) adapted to project into the path of the said rolling weight
and to engage with a projection or shoulder (n) of a weighted lever (N) designed
to act upon the arresting device (M) of the receptacle (B), substantially as and for
the purpose set forth.
3. In au
automatic weighing apparatus the combination of a revoluble
hook (D d), a hanger (b) having a lug or eye (c), a finger (f) attached to the out-
off gate (G), a tubular lever (K) connected to the cut-off gate, a rolling weight or
ball (J) enclosed in the said lever (K), a double armed lever (u) and a weighted
lever (N) provided with a projection or shoulder (n), said weighted lever being
designed to act upon the arresting device of the receptacle (B) of the apparatus,
substantially as described.
Dated thin 15th of T.1 100%
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.