306 University Geological Survey of Kansas. 
operated in this district it is essentially a shallow-mine pump. 
They are, therefore, what may be called ‘‘single-bucket or 
suction-lift’’ pumps. 
The pump proper consists of, first, the pump head; sec- 
ond, the necessary length of column pipe; third, the working 
barrel; fourth, the clack valve; and fifth, the suction or slid- 
ing barrel or sleeve, with screen attached. 
eae 
Fig. 89. Priming hopper and headpiece of a Cornish pump. 
The range for a single-lift Cornish pump is from 250 to 
300 feet ; so the mining operations here are as yet well within 
the limits. 
With these few parts, the pump proper is comparatively 
simple and easy to operate. 
THe Pump Heapv.—The pump head is a continuation of the 
upper end of the column pipe (figure 89), and consists of 
the delivery spout, A, riveted to which is the tee casting, B, 
and to Bthe sheet iron funnel, C. The use of the head is two- 
fold: First, to allow for sufficient play of the pump rod, and 
to protect it, as it were, by a shield surrounding it; and 
second, to facilitate the priming of the pump. A barrel of 
water may be poured into the funnel, or a launder running 
from another pump may be directed to it. 
