ol BULLETIN 857, U. S. DEPARTMENT OF AGRICULTURE. 
gives, respectively, 125 grams and 875 grams; the fourth cut, 62.5 
grams and 937.5 grams; the fifth cut, 31.25 grams and 968.75 grams. 
These weights may vary slightly in amount, as previously explained, 
but this will not affect the accuracy of the portion. 
CARE OF THE DEVICE. 
As there are practically no moving parts to this device it requires 
little care except to keep it clean. If the openings around the base 
of the cone, or the ducts, are allowed to become choked or partially 
clogged by pieces of straw, corncob, etc., the accuracy of the results 
may be vitally affected. 
With the present device it is a simple matter to lift out the upper 
cylinder, examine the openings and ducts around the base of the 
cone, and remove any obstructions lodged there. This precaution 
Fig. 5.—A, Upper pan, showing protected opening through which material passes to 
pan. B, Lower pan. 
should never be neglected, as it affects the correctness of the sample 
and, by so doing. the analysis and grading of the grain in question. 
HOW TO OBTAIN THE SAMPLER. 
This device is covered by the same public-service patent as is the 
original standard apparatus described in Department of Agriculture 
Bulletin No. 287, and anyone in the United States is free to make 
and use it without the payment of a royalty. 
A modified sampler made of block tin approximately 30 inches 
high and 10 inches in diameter, with 20 partitions spaced 1 inch 
apart around the base of the cone, which is considered a suitable size 
for grain-grading purposes, is now on the market. The design is 
so simple that any competent tinner or metal worker should be able 
to make it at about one-third the cost of the standard “ Boerner 
Sampler.” Working plans and specifications may be obtained from 
the Bureau of Markets, U. S. Department of Agriculture, Washing- 
ten, D.C: 
WASHINGTON : GOVERNMENT PRINTING OFFICE ;: 1920 
ee 
