Year: 1886

page_text: Date of Application, 29th Nov., 1886.
Complete Left, 20th July, 1887.
Complete Accepted, 23rd Aug., 1887.
I, PAUL GROBECKER of Artern, in the Kingdom of Prussia, Germany, Brewery
Manager, do hereby declare the nature of this invention to be as follows:-
This invention relates to the method and means of testing the size of grains and is
performed as follows:
Two plates each provided with a shank forming a handle so pivoted or fastened
together near or in the said shanks, that they may be brought over each other. The
upper plate carries an upstanding rim all round, and is provided with perforations,
preferably ten in number or a multiple of ten. In the lower plate is a corresponding
number of conical perforations which extend into recesses in a third plate, pivoted
adjustably below the said under plate. By adjusting the distance between the third
plate and the said under plate, which may be done by causing it to revolve on a screw
spindle attached at or near the side of said under plate the depth of the recesses in
the said under plate can be varied at pleasure.
:
Between the two main plates, a cutting disc is adapted to be inserted so bevelled as
to cut close along the surface of the under plate.
In using this apparatus, the lowermost plate is adjusted according to the size of
grain and the two perforated plates brought over each other, grain is now placed on
the upper plate, and falls through the perforations; single grains lodging in the
perforations in the lower plate; the cutting disc is then inserted between the plates
and will cut those grains which are above the average size and leave portions of them
in the perforations of the upper plate, to which the said disc now forms a bottom.
On shifting off the upper plate, with the cutter under it, the lower plate will be
disclosed to view and the average size of the grains will be seen.
Dated this 29th day of November 1886.
HERBERT & Co.,
67, Strand, W.C.,
Agents to Applicant.

page_text: I, PAUL GROBECKER of Artern, in the Empire of Germany, Brewery Manager,
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:-
This invention relates to the method and means of testing the size and quality of
grains and is performed as follows:
Two plates each provided with a shank forming a handle so pivoted or fastened
together near or in the said shanks, that they may be brought over each other.-The
upper plate carries an upstanding rim all round and is provided with perforations,
preferably 10 in number or a multiple of ten. In the lower plate is a corresponding
number of conical perforations which extend into or are continued by recesses in a
third plate, pivoted adjustably below the said under plate. By adjusting the distance
between the third plate and the said under plate, which may be done by causing it to
revolve on a screw spindle attached at or near the side of said under plate, the depth
of the recesses formed by the combination of the lower and third plates can be varied
at pleasure.
Between the two main plates a cutting disc is adapted to be inserted so bevelled as
to cut close along the surface of the under plate. In using this apparatus, the lower-
most plate is adjusted according to the size of grain, and the two perforated plates
brought over each other, grain is now placed on the upper plate, and falls through the
perforations, single grains lodging in the perforations in the lower plate. The cutting
disc is then inserted between the plates, and will cut those grains, which are above
the average size and leave portions of them in the perforations of the upper plate, to
which the said disc now forms a bottom. On shifting off the upper plate, with the
cutter under it, the lower plate will be disclosed to view, and the average size and
quality of the cut grains may be readily seen.
Referring to the accompanying drawings which illustrate the invention,
Fig. 1 is a longitudinal vertical section of the tester.
Fig. 2 is a plan thereof.
Fig. 3 is a cross section on line A A Fig. 2.
Fig. 4 a cross section on line B B, Fig. 1.
a is the upper plate provided with a flange and with upwardly widened per-
forations, b is the under plate with perforations corresponding in position to those in
said upper plate; d is the lowermost plate, having recesses corresponding to the
perforations in b. Said plate d is adjustable upon a screw threaded spindle e fixed
in b, and is held against shifting during use by the spring engaging in a recess in
the periphery of 6. Between the plates a and b lies the cutting plate having
sharpened edges. The three plates ab and are pivoted at c and each extends

page_text: rearwardly to form a handle. The handles of a and are held against accidental
shifting by a nose g on one handle engaging lightly into a corresponding recess in
the other (see Fig. 4).
Having now particularly described and ascertained the nature of this invention,
and in what manner the same is to be performed, I declare that what I claim is :
In a grain tester:
1) The plate a having a flange and tapered perforations substantially as set forth.
2) The plate a with tapered perforations in combination with plate b with
recesses.
3) The combination of plates a and b with cutter h substantially as and for the
purpose set forth.
4) The combination of plate 6 having perforations with plate d with recesses
corresponding to said perforations, said plates being adjustable substantially as set
forth.
5) The combination with plates a and b of nose g and corresponding recess for the
purpose set forth.