IMPROVEMENTS IN WEIGHING CEREALS AND MATERIALS CONSISTING OF SMALL PARTICLES, AND IN APPARATUS THERE- FOR
Year: 1876

page_text: OTHER
LETTERS PATENT to Eduard Reisert, of Kalk, in the Kingdom of Prussia, for
the Invention of "IMPROVEMENTS IN WEIGHING CEREALS AND
MATERIALS CONSISTING OF SMALL PARTICLES, AND IN APPARATUS THERE-
FOR
"
Sealed the 10th November 1876, and dated the 12th May 1876.
PROVISIONAL SPECIFICATION left by the said Eduard Reisert at the Office
of the Commissioners of Patents on the 12th May 1876.
EDUARD REISERT, of Kalk, in the Kingdom of Prussia.
WEIGHING CEREALS AND OTHER MATERIALS CONSISTING OF SMALL PARTICLES,
AND IN APPARATUS THEREFOR."
"IMPROVEMENTS IN
The object of this Invention is to construct a machine suitable for weighing or
measuring off definite weights of materials consisting of small particles, such as
cereals, seeds, and coffee, all as herein-after described.
The machine is actuated by a strap pulley, which, together with a flange roller
on the same spindle, is kept constantly revolving. This spindle also carries a
V grooved friction pinion which, when actuating a correspondingly grooved wheel,
produces the required movements of the mechanism. The grooved wheel turns on
a pin in a forked one-armed lever, which has its fulcrum pin fixed to the box of
the apparatus. The groove in the wheel is interrupted in two places, and where
the gearing of wheel and pinion is thus interrupted the roller is placed against
the lower edge of a filling shoot, and causes the delivering of the material into a
drum through an opening therein. There is a lever fast on a spindle which also
carries a slide or swing flap or slide which serves to shut off the delivery of the
material. The outer lower end of this lever rests on a cam formed with steps, and
connected to a seginent disc fast on the spindle on which the aforesaid grooved
wheel works, and to which is firmly connected a disc which is connected to the
interior of the box. To keep the segment from falling down or turning round its
spindle it has a shoulder or nose which rests against a projecting flange round a
hole in the grooved wheel. This wheel has such a position that the part where the
groove is left out is against the grooved pinion or out of gear with it, the later
is made so that its centre of gravity is a little to the right of the centre. The
Price 6d1

page_text: A
tendency to turn to the right is furthermore increased by the disc segment.
lever formed with a nose at the end prevents the V grooved wheel and the segment
from turning to the right. The wheel has also two projections or noses, one of
which is resting against the nose on the just-named lever, and stops both wheel
and segment. The lever is connected to two vertical rods, and moves with it. The
rod is connected to the balance beam. Supposing that so much grain has been
let into the drum that the balance beam begins to play, so that the weight is
lifted, and the drum goes down, then exact weight has not been arrived at yet
because the movable weight still rests on the bottom of the box. The balance is
now brought to a state of rest thereby that the somewhat prolonged forked end of
the balance beam abuts against a stop lever. The two vertical rods moved down,
whereby the nose on the stop lever for the wheel and segment lets go the nose on
the wheel, allowing the latter, together with the segment, to turn a little the wheel
form one stop to the other and the segment so far till its nose comes against the
end of a short lever. The end of the lever on the swing flap spindle can slip on
to the lower step of the cam; the flap shuts the bottom of the shoot so far that
only a very fine stream of grain can pass through; but by the turning of the
swing flap the balance beam becomes released because the balance beam stop lever
moves down also. The grain slowly falling into the drum causes the lifting of the
small movable weight, whereby the balance beam begins to play again, but is
arrested by a stop. By this movement the nose at end of the stop lever for wheel
and segment allows the projection on the wheel to pass bye, so that this wheel is
released and falls by its overbalancing part with its wedge into gear with the
revolving pinion. The segment is thus also made to revolve, whereby the end of
the lever on the swing flap spindle loses its support, and the narrow opening of
the shoot is closed by the falling of the swing flap on to the delivery roller. With
segment rotates also the pinion spindle with its cam, the latter turns the disc as it
works into a slot or notch. This disc is on the spindle of the drum, and turns
the spindle in its bearings, whereby the opening of the drum is brought down and
the drum emptied. The weight now draws the empty drum up till the machine
has got into its original position.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Eduard Reisert in the Great Seal Patent Office on the 11th
November 1876.
EDUARD REISERT, of Kalk, in the Kingdom of Prussia. "IMPROVEMENTS IN
WEIGHING CEREALS AND OTHER MATERIALS CONSISTING OF SMALL PARTICLES,
AND IN APPARATUS THEREFOR."
"
The object of this Invention is to construct a machine suitable for weighing or
measuring off definite weights of materials consisting of small particles, such as
cereals, seeds, and coffee, all as herein-after described.
For this purpose the following points have been kept in view :-
1. The greatest amount of work compatible with the greatest exactitude, that is
the delivery of the material into the apparatus must at first be quick, when near
the weight be exceedingly slow, and when the weight is attained be suddenly
cut off.
2. The machine must empty itself quickly and be ready for the next operation
at once with instant quick delivery.
3. The machine must remain unchanged, that is the material must pass through
it entirely, but if by any means the exit became impeded, the machine inust at once
stop its operation.
4. All the functions of the machine should be carried out by an extraneous power
through strap pulley. The balance should only give the impulse to the required
movements and have free play and be independent of friction and other resistances.

page_text: 5. It must be perfectly impossible to tamper with the machine so as to give
incorrect results.
Figure 1 of the accompanying Drawings is a vertical cross section of a machine
constructed according to this Invention, Figure 2 is a plan section of same through
line 3, 4, Fig. 4, Figure 3 a vertical longitudinal section, and Figure 4 an end
view, Fig. 5 is a plan section through the line 5, 6, Fig. 3, Figs. 6, 7, and 8, are
detail views of the interior mechanism.
The machine is actuated by a strap pulley b which together with a flange roller B
on the same spindle is kept constantly revolving; this spindle also carries a
V grooved friction pinion K which, when actuating a correspondingly formed
wheel L, produces the required movements of the mechanism, the wheel L turns on
a pins in a forked one-armed lever 1, which has its fulcrum pinj fixed to the box
of the apparatus. The circular form of the wheel L is interrupted in two places m
and n (Figure 4) where the gearing of wheel and pinion is thus interrupted. The
roller B is placed against the lower edge of a filling shoot A and causes the delivery
of the material into a drum D through an opening c therein. There is a lever Ň
fast on a spindle, which also carries a slide or swing flap C, which serves to shut off
the delivery of the material; the outer lower end of this lever N, as more clearly
shown at Figs. 6, 7, and 8, rests on a camr formed with steps and connected to a
segment disc S fast on the spindle a on which the aforesaid wheel L works and to
which is firmly connected a cam disc v which is connected to the interior of the
box. To keep the segment S from falling down or turning round its spindle S it
has a shoulder or nose t, which rests against a projecting flange round a hole o in the
wheel L. This wheel has such a position that the part m, where the circumference
is flattened, is against the grooved pinion K or out of gear with it; the wheel L is
made so that its centre of gravity is a little to the right of the centre, the tendency
to turn to the right is furthermore increased by the disc segment S. A lever M
formed with a nose i at the end, see Figs. 6, 7, and 8, prevents the wheel L and tho
segment S from turning to the right, the wheel L has also two projections or noses
at P and q (Fig. 8), the former when resting against the nose i on the just named
lover M stops both wheel Land segment S, the lever M is by the arm connected to
one of two vertical rods f, and moves therewith, the latter being connected to the
balance beam G. Supposing that so much grain has been let into the drum D that
the balance beam G begins to play so that the weight H is lifted and the drum D goes
down, then the exact weight has not been arrived at yet because the movable
weight F still rests on the bottom of the box, as shown at Fig. 3. The balance is
now brought to a state of rest thereby that the somewhat prolonged fork end of the
balance beam G abuts against a stop lever Q. The two vertical rods f moved down
whereby the nose i on the stop lever M for the wheel and segment lets go the
nosc p on the wheel L, allowing the latter together with the scgement to turn a
little the wheel from one stop p to the other q, and the segment S so far till its
nose u comes against the end of a short lever P. The lower end of the lever N on
the swing flap spindle can slip on to the lower step of the cam r, the flap C shuts
the bottom of the shoot so far that only a very fine stream of grain can pass through.
But by the turning of the flap C the lever Q is also turned, and again releases the
balance beam at once. The latter, however, remains at rest until the gradual slow
falling in of the grain the small weight F can be overcome. This weight F is
exactly so large that when it together with the weight H loads the balance beam
G the two weights together balance the drum D and the grain contained therein.
When thus the weight of the grain in the drum D has come to a certain weight
measure (say a stone), then the small weight F will be raised also, and the balance
beam begins to play again until it is brought into a state of rest by the stop w.
By this second descent of the drum D and rods of the lever i was moved a
little down again, viz., so far that the nose i on it also lets the notch 7 pass by
and the wedge wheel L finds no more resistance at i.
Because of the small overbalancing weight towards the right the wedge wheel L
falls into gear with the rotating pinion K and revolves.

page_text: In order to prevent shocks and to ensure proper falling into gear the wheels L
and K are pushed against one another by the buffer x, Figure 4. By the rotation
of the wheel L the upper edge of the hole o in same comes in contact with the
nose t on the disc segment S compelling the latter to rotate, after that the resistance
caused by the lever P has been got over. The rotation of the segment causes the
complete closing of the inlet c, the lower end of the lever N being enabled to
move inward by removal of its support and allowing a complete lowering of the
flap C on to the roller B. The entry of grain ceases entirely. With the segment S
rotates the spindle s and can u, which turns the disc E as it takes in the notch c of
same, as E is fixed on the spindle the drum D also turns in the bushes, the
opening of the drum is thus turned down and the contents are emptied out, the
weight H raises the drum again.
The rotation lasts till the whole mechanism is brought into the position shewn at
A moment before the cam v of
Figure 4. The wheel L is stopped by the nose i.
the segment & has opened the inlet flap entirely and the drum D will now fill
quickly again. As long as the wheel L and pinion K are in gear the cam disc vis
out of contact with the disc E as it is in the hole of the latter. After a completed
rotation the drum turns a little further than the wheel L, vizt., so that its centre of
gravity comes below its axis. The disc E will hence not touch the cam v, and
will therefore not hinder the repeated play of the balance which precedes the
gearing of wheel L and pinion K. The two levers y protect the drum D against
side vibration, but do not affect the exactness of the apparatus.
To stop the machine when grain has accumulated below and quite up to the
drum D the latter has a flap R. As at Figure 8 the flap is opposite the pinion K
hence L is out of gear, but R has stuck in the grain and c is hence closed.
During the working the nose i on lever M is drawn first from p then from q,
the pressure on the former is produced by the segment S resting in the slot E in
wheel L and the overbalancing of this wheel; the friction is, however, at this stage
unimportant, the pressure on q is only due to the overbalancing of the wheel L,
for segment S stands as shown at Figure 7, but the overbalance is no more than
absolutely necessary and very small. The movement and hence friction of
nose is small, and this friction is only and very small labor which the balance
during its own otherwise quite free play has to do in case of the exact weighing
by assistance of the small weight F. It may besides be supposed that this small
friction during a lengthened working of the apparatus will be constant, and hence
can be equalised by the weight H. As all other work is done.from the strap
pulley b, which is actuated by an extraneous power, the friction is a minimum.
And having thus described the nature of this Invention, I declare that I
claim―-
First. The general arrangement and combination of parts as shewn and described.
Second. Nearly cutting off the supply of material to a weighing apparatus when
the weight is almost attained, and cutting it off altogether the moment the full
weight is attained by automatic incans as set forth.
Third. The mode of and means for the partial and total cut off of the supply of
material to be weighed, substantially as herein-before described and shewn.
In witness whereof, I, the said Eduard Reisert, have hereunto set my hand and
seal, this Eighth day of November, in the year of our Lord One thousand
eight hundred and seventy-six.
EDUARD REISERT. (L.S.)