IMPROVEMENTS IN APPARATUS OR MACHINES FOR WEIGHING AND *MEASURING GRAIN AND THE LIKE
Year: 1880

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for an Invention
⚫ of "IMPROVEMENTS IN APPARATUS OR MACHINES FOR WEIGHING AND
*MEASURING GRAIN AND THE LIKE." A communication from abroad by
Alexander Kaiser, of Münich, Germany.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 23rd December 1880.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, and Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN APPARATUS OR MACHINES
FOR WEIGHING AND MEASURING GRAIN AND THE LIKE," [A communication
from abroad by Alexander Kaiser, of Münich, Germany.]
This Invention relates to apparatus or machines chiefly designed for weighing
and measuring grain or cereals.
The weighing mechanism is represented in Figure 1, and has a scale beam A,
upon one end of which the weighing-vessel or receptacle B is mounted in such a
manner that it is freely suspended only when in equilibrium, and consequently
moves with the scale-beam as if it were attached thereto; the other end of the
latter carries the counterweight G, which determines the quantity weighed at one
operation.
The centre of gravity of the scale is higher than the centre of its rotation, so
that the momentum in different positions of the scale differs sufficiently to allow of
the proper operation of the apparatus.
The main knife-edges of the scale-beam rest on their steps only for a time, just
sufficient for the correct weighing of the grain, and the greater part of the
movement of the scale-beam takes place around pins b. The weighing vessel or
receptacle has at its side a spout C, and the bottom of the same is elongated in such
manner that the scale, when being emptied, will be retained in position by the
grain flowing from it as long as may be necessary for completely discharging the
grain weighed at one operation.

page_text: The feeding-device consists of a hopper D with a weighted curved damper or
register E which is movable around a shaft d. A lever F transmits the motion of
the scale to the said damper, whilst an arm H with a movable tappet g when the
scale is in equilibrium bears against the part h, and thereby prevents any effect of
the feed mechanism upon the weighing.
In the measuring apparatus, Figure 2, instead of a weighing vessel or receptacle, a
measuring receptacle B with a hopper B₁ is attached to the scale-beam A. The
outlet-opening of the said measuring vessel or receptacle is placed at the side, so
that by the rotating damper or register K it can be opened or shut and the
measure struck by the same.
The retention of the apparatus in the proper position to allow the measured
grain to flow off, is in some instances effected by a trap provided with a tappet X on
which the measuring receptacle is hooked by means of a nose-piece k.
In some cases I combine the weighing apparatus with an appropriate measuring
device, the latter being mounted on the top, whereby the proportion of pressure in
the weighing apparatus is regulated.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Great Seal Patent Office on the
23rd June 1881.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN APPARATUS OR MACHINES
FOR WEIGHING AND MEASURING GRAIN AND THE LIKE." A communication
from abroad by Alexander Kaiser, of Münich, Germany.
This Invention relates to apparatus or machines chiefly designed for weighing
and measuring grain or cereals. The weighing mechanism is represented in
Figures 1, 2, and 3, and has a scale beam A, upon one end of which the weighing-
vessel or receptacle B is mounted in such a manner that it is freely suspended only
when in equilibrium, as shewn in Figure 2, and consequently moves with the
scale-beam as if it were attached thereto; the other end of the latter carries the
counterweight G, which determines the quantity weighed at one operation.
The centre of gravity of the scale is higher than the centre of its rotation, so
that the momentum in different positions of the scale differs sufficiently to allow of
the proper operation of the apparatus.
The main knife-edges of the scale-beam rest on their steps only for a time just
sufficient for the correct weighing of the grain (see Figure 2), and the greater part
of the movement of the said scale beam takes place around pins b. The weighing
vessel or receptacle B has at its side a spout C, and the bottom of the same is
elongated in such a manner that the scale, when being emptied, will be retained in
position by the grain flowing from it as long as may be necessary for completely
discharging the grain weighed at one operation.
The feeding device consists of a hopper D with a weighted damper or register E
which is adapted to move or turn upon a shaft d.
A lever F transmits the motion of the scale to the said damper, whilst an arm H
with a movable tappet g, when the scale is in equilibrium, see Figure 2, bears
against the part h, and thereby prevents any effect of the feed mechanism upon the
weighing.
Figure 1 shews the whole weighing apparatus in the position it occupies when
being filled.
Figure 2. represents the said apparatus when it is in equilibrium, and
Figure 3 shews the said apparatus in the position it occupies when the cereals
that have been weighed are being emptied.
In the measuring apparatus represented in Figures 4, 5, and 6, instead of a
weighing vessel or receptacle, a measuring-receptacle B with a hopper B' is
attached to the scale beam A. The outlet-opening i of the said measuring vessel
or receptacle is placed at the side, so that by the rotating damper or register K it
can be opened or shut and the measure struck by the same.
The operation of the measuring apparatus is as follows, that is to say:-When
the said apparatus is in the position shewn in Figure 4, the inlet-spout D and the
channel by which the first receptacle B' and the measuring vessel proper B com-
municate are completely open, so that the grain flows freely into the vessel B ;
gradually however the machine descends and arrives in the position represented in
Figure 5, in which position the grain flows into the vessels very slowly until the
equilibrium is attained. Up to this moment therefore the measuring apparatus
operates in a manner analogous to the operation of the hereinbefore described
weighing apparatus, as the operation of the measuring damper or register K does
not commence until the equilibrium is attained and after the closing of the inlet.
This damper, when the machine moves from the position shewn in Figure 5 to that

page_text: shewn in Figure 6, abuts against a bolt and separates the vessel B from the
vessel B¹, so that only the former (which is the measuring vessel) can be emptied.
It is obvious that the weight G must be greater than the weight of the measuring
vessel when the latter is full, so that when the filling takes place a certain quantity
of grain will remain in the vessel B¹.
The retention of the apparatus in the position shewn in Figure 6 to allow the
measured grain to flow off, is in some instances effected by a trap provided with a
tappet on which the measuring receptacle is hooked by means of a nose-piece k.
In some cases, as represented in Figure 7 of the Drawings, I combine the
weighing apparatus with a measuring device, the latter being mounted on the top,
whereby the proportion of pressure in the feed-opening of the weighing apparatus
is regulated.
The weighing machine shewn in this Figure is the same as that shewn in
Figures 1, 2, and 3, with the exception of the extension C of the spout, which is
replaced by the trap L; the measuring machine is the same as that shown in
Figures 4, 5, and 6.
By this combination the grain is first measured in the manner described with
reference to Figures 4, 5, and 6, and then weighed by the lower part of the
apparatus in the same manner as by the apparatus shewn in Figures 1, 2, and 3,
with the exception that the vessel is retained in position when discharging its
contents by the trap L.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it understood
that I claim,
First. A weighing apparatus having an outlet at one side, and an elongated or
extended bottom, as shewn in Figures 1, 2, and 3, or a trap, as shewn in Figure 7,
for the purpose specified.
Second. The measuring vessel or receptacle provided with an outlet at the side,
in combination with the curved register or damper arranged and operating as above
set forth, and for the purpose specified.
Third. The weighing apparatus consisting of the parts constructed and combined,
substantially as shewn in the accompanying Drawing, and operating as set forth.
Fourth. The measuring apparatus consisting of the parts constructed and
combined, substantially as shewn in the accompanying Drawing, and operating as
set forth.
Fifth. The combination of the weighing machine with the measuring apparatus,
substantially as and for the purposes specified.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Twenty third day of June, in the year of our Lord
One thousand eight hundred and eighty one.
DADT TATR