2 BULLETIN 287, U. S. DEPARTMENT OF AGRICULTURE. 
circumscribes the cone. Asis seen in figure 4, the outside funnel is pro- 
vided with an aperture (Q) near its lower end, through which the spout 
(K) from the interior funnel passes. The space between the two fun- 
nels directly over the spout from 
_the inside funnelis bridged with 
an inverted V-shaped bridge (P) 
in order to prevent the lodging 
of material as it passes through 
the apparatus. 
The outside funnel may be se- 
cured to the upper and outside 
part of the ducts by soldering or 
riveting, or by any other suitable 
or convenient means. The out- 
side funnelis asufficient distance 
from the inside funnel to allow 
the material to be sampled to 
pass freely through the space be- 
tween the two funnels. The 
spaces H between the ducts at 
the base of the cone constitute 
unobstructed passageways from 
the surface of the cone to the in- 
terior of the outside funnel, as is 
shown by the arrow NV pointing 
downward in figure 1. The 
spaces between the ducts below 
Fic. 1—A vertical cross section of the sampling the base of the cone are closed, so 
‘isvicd, showing the-pathe taeniby thematcralin | 25 UOl prevent ally olebime male 
passing from the hopper (A) to the receptacles which passes between the two 
(fand U). 4 4 
| ducts from bounding into the 
inner funnel as it passes through the device. This is shown by V 
in figures 1 and 2. 
As seen in figure 4, the device 
is held in a fixed operative posi- 
tion by means of three supports < / 
or legs Q, which may rest upon - 
any solid base. The supports 
are fastened to the outside funnel ey nak eave 
at two points. They should be a terter Hammel. \ 
so placed that one of them will SS ze) 
5, | of core Ws aces which 
rest on the floor at a point, half- Be | veal! INS cmemoee, 
way between the two recepta- EV y, 
hee 
cles, as is shown in figure 5. 
The hopper at the top of the 
Ducks corrected 
Se/orw Lase of corre 
device is held in position by three 
5 : Vr 
supports #, which are soldered or ‘ a ot 
riveted to the hopper and bolted aan ae 
to the inside rim of the outside BAG rr 
funn el alons its upper edgee each Fic. 2.—Cross section of the sampling device at the 
=) SoS ee ry Sire base of the cone. 
support being fastened at a point 
S opposite to the upper part of the three lower supports orlegs. The 
hopper isso placed that the peak of the cone is directly under the center 
of the opening at the bottom part of the hopper, so that the material 
in passing through the device will spread evenly on all sides of the cone. 
