the Philadelphia Centennial Exhibition. 
61 
at the end and can be carried away by an elevator if desired. I did not see 
this machine at work, but it is said to clean from 25 to 50 bushels an hour, 
the price being 150 dollars. Corn-shellers were shown in great variety, 
mostly for hand-power. These had the disadvantage of having no self-feeding 
gear ; an attendant being required to place the ears in position; and few of 
them had any winnowing apparatus to remove dirt, &c. 
The most efficient machinery was shown by The Sandwich Manufacturing 
Company, Sandwich, Illinois (Adams' Patent), which is worthy of description. 
Machines are made of various sizes ; that which I shall illustrate represents a 
4 horse-power sheller with cob rake and grain elevator complete (Fig. 53). The 
Fig. 53. — Adams' Patent Corn-slieller. 
ear corn is thrown into the feeder A, which contains 4 revolving rubber straps 
with convex projections working between three bars or divisions, which ensure 
the straightening of the ears in their ascent. The corn is forced into the mill 
by a force-feed spindle with iron flanges. This arrangement, recently patented, 
is not shown in the figure. The ears fall down the incline B to C by their own 
gravity, are prevented from clogging, and are delivered with regularity into the 
mill by the flanges on the force-feed spindle. The com is caught by four vertical 
wheels covered with small teeth, termed little pickers, which revolve about 
600 times a minute. Two large picker-wheels hold the corn to its place, 
■with the aid of upright springs, whilst the bevel runners strip the corn 
from the cob. These runners have coarse ribs radiating from the centre ; they 
revolve 700 times a minute and are very efficient. The cobs are thrown out 
on to the wire elevator D, and delivered clear of the machine. This elevator is 
made in two parts, the second portion being at a lower elevation ; this allows of 
any loose grains that may have escaped with the cobs dropping upon an inclined 
board and passing back to the winnower. The corn falls on a riddle, is winnowed 
and elevated to the spout, from which it can be delivered into sacks or waggon 
as desired. This machine is admirably made, and capable of shelling 150 
bushels in an hour ; a cob-stacker similar in principle to a straw-elevator 
can be attached at a cost of 25 dollars ; without this the price of a 4-horse 
machine with 10-foot elevator, is 215 dollars ; under 40Z. 
Cotton-gins. — Several of these machines were exhibited, made 
