4D 
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297 
BULLETIN No. : 
Contribution from the Bureau of Plant i rx <3 
WM. A. TAYLOR, Chief g aa eas 
a , 
Washington, D. C. PROFESSIONAL PAPER Sepremenk 4, 1915 > 
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A DEVICE FOR SAMPLING GRAIN, SEEDS, AND | HER 
: MATERIAL. 
By E.G. Borrner, Assistant in Grain Standardization. . 
INTRODUCTION. 
The device described in this bulletin was developed primarily to 
meet the demands of grain and seed dealers and laboratory workers 
for securing a reliable sample of grain or seed from a larger portion of 
the material to be examined, graded, or analyzed. It can also be used 
- for sampling flour, meal, feeds, coal, ore, or any other material of like 
kind for examination or analysis and to mix or blend and divide two 
or more streams of unlike material of the kind specified, so that the 
two resulting streams will be a thorough mixture of the original two 
or more kinds of material. 
Another application of the device which should be of special interest 
to the grain trade is that a sample can be divided so that one half 
can be used for testing and grading and the duplicate half either 
turned over to the seller or to the buyer of the grain or retained for 
future reference. i, 
Both the construction and the process have been made simple, so 
that reliable samples can be obtained by any careful worker. 
The operation of the device does not require power of any kind, 
' gravity being all that is necessary tomake the material pass through it. 
DESCRIPTION OF THE SAMPLING DEVICE. 
As is shown in figure 1, the device consists of a hopper (A), held in 
position over a cone (J), which is provided at its base (@) with a 
series of separated ducts (/’) having uniform distances or spaces 
between them (/£). These ducts are so constructed that they are 
- equal to the width of the spaces between the ducts, as shown in figures 
2 and 3. The ducts may be so constructed as to form an integral 
part of the cone or they may be adjusted to the cone by clamps, rivets, 
or other satisfactory means. Adjusted to the bottom of the ducts, at 
a is a funnel (J) having a spout () at its bottom part, as seen in 
cure 1. 
The ducts constitute a passageway from the exterior of the cone to 
the interior of the. funnel, as is shown by the arrows (Jf, /) pointing 
downward in figure 1. Inclosing this inner funnel is another or out- 
side funnel (J), also having a spout (Z) at its base. The upper 
portion of the outside funnel extends over the ducts and the base of 
the cone, so that the enlarged opening of this outside funnel partly 
Note.—This bulletin is of interest to all who have occasion to get samples of grain and seeds. 
1931°—15 
