A HUMIDIFIER FOR LEMON CURING ROOMS. 
5 
Naturally, the higher the raised slot extended above the water, the 
slower was the passage of water to the lower pan. 
In this work it is desirable to keep the cloths saturated during the 
operation of the machine, but with little or no excess of water 
dripping into the lower pan. As finally constructed, after many 
tests to determine the best arrangement, it Avas found that raising 
the slots 4 inches above the bottom of the pan keeps the cloths fully 
saturated under the conditions in which this machine is used. An- 
other method of controlling the flow of water through the cloths 
is to vary the quantity of water in the upper pan, filling up the pan 
so that the water nearly reaches the tops of the raised slots in order 
to increase the rate 
of the flow or draw- 
ing off some of the 
water in order to re- 
tard its flow. 
If it is desirable 
to stop the absorp- 
tion of the water b}' 
the cloths at any 
time, this can be 
done easily by lift- 
ing the ends of the 
cloths out of the 
water in the upper 
pan. If the flow of 
water through the 
cloths is such as to 
collect in the lower 
pan, this excess can 
be drawn off and re- 
turned to the upper 
pan. Under condi- 
tions of very low humidity, when evaporation from the cloths is very 
rapid, it may be found advisable to maintain some water in the lower 
pan, as w^ell as in the upper one, in order to keep the cloths fully 
saturated. 
The operation of this humidifier washes all of the air in the room 
and increases the humidity uniformly, a very important factor in 
lemon curing roonls. Another fact of great importance is that under 
conditions of low humidity the humidifier acts rapidly, while under 
conditions of high humidity it works slowly. One advantage of this 
condition is that it reduces the danger of raising the humidity of the 
curing room to a point which would be unfavorable for lemon curing. 
On an average the humidifier will raise the humidity in the rooms de- 
PI7963HP 
Fig. 1. — Side view of the humidifier, showing its arrange- 
ment on a truck and the spigot for drawing off excessive 
water in the lower pan. 
