PRACTICAL PAPERS—IMPROVED MACHINERY. 837 
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register figure. The operation thus described proceeds from 
scale to scale alternately as long as the supply of grain is con¬ 
tinued. The flow of grain is never cut off or interrupted dur¬ 
ing the discharge of the scales. 
What makes this invention specially interesting is the inge¬ 
nuity with which a very severe accuracy in the weight of each 
charge is secured without any consequent loss of time. In 
ordinary weighing, if great exactness is aimed at, the last ad¬ 
ditions are made slowly; and this, in fiict, is always necessary 
if one would avoid inevitable overcharge. Accordingly, as 
much time is spent in adding the last few grains, or the last 
few ounces, as the case may be, as it had required to introduce 
the great bulk of the load previously. But by employing two 
balances, side by side, with a bridge, or doubly inclined shoot, 
between them, the inventors have made it possible to keep up 
a steady flow from the source, and still to finish off each load 
by so.gently growing an increase that it is impossible an error 
should occur of any sensible amount; while in the mean time 
the nearly empty scale receives the main stream and rapidly 
fills. This balance cannot fiiil to make its way among our 
western farmers, and among the large class of our citizens, 
who are engaged in the transportation of grain. 
The figure will be understood without requiring particular 
description. The parts important to note are the two scale 
pans, of which the one on the right is in the position to re¬ 
ceive, and the one on the left in the position to discharge its 
load ; the. doubly inclined shoot or bridge extending across 
above the scales, and the supply shoot appearing above the 
whole. This supply shoot is sustained by a branch iron sup¬ 
port, which is single at the base, and which forms a vertical 
axis around which the supply shoot has the slight lateral move¬ 
ments above described, which change the manner of delivery 
of the grain. 
It is obvious that this balance is applicable to many pur¬ 
poses in which accurate and continuous weighing is necessary, 
as well as to the weighing of grain. 
\ 
Ag. Tb. —22. 
