Lime-Sulphur Concentrate. 15 
the bottom of the hole is 3 inches from the bottom of the tank and 
the other in the bottom as near the end as possible. The bottom out- 
let is used in thoroughly cleaning the tank. The concentrate is 
drawn off through the upper outlet into a filter tank alongside of the 
furnace. The filter tank is fitted with three removable strainer 
boxes which remove the heavy sediment or sludge. These strainer 
boxes may be of any convenient size and should have bottoms of 
brass or tinned iron wire, 30 to 50 meshes to the inch. The use of 
3 boxes permits a more rapid flow of solution. The boxes may be 
slid along in rotation under the outlet pipe so that as soon as the one 
directly under the outlet contains an appreciable deposit of sludge 
it may be pushed along to the end position, removed, and emptied. 
Meantime the next box has come into position without interrupting 
the flow. The cleaned box is then replaced in the first position. 
Barrels are filled from the filter tank, a short piece of rubber hose 
being used to direct the flow. Old automobile inner tubes serve the 
purpose. 
A small gasoline engine of 14 to 24 horsepower will drive the 
agitator, but if motor power is not available the stirring may be 
done by hand with a long-handled wooden hoe. 
The operation of this plant, if arranged as in Figure 10, is as 
follows: The materials are delivered in wagon lots at door A and are 
stored in bins as indicated. The size of the storage bins will depend 
upon the quantity of the materials to be purchased at one time. In 
some of the smaller plants storage space is not provided, lime and 
sulphur being purchased only as needed and used, but the avail- 
ability of storage space may mean a saving in time and expense since 
the materials may then be hauled in as return loads in advance of 
the spraying season and thus be on hand when needed. 
When operation commences, sulphur and lime are taken from 
bins as indicated by lines )-F’, and £-G, and weighed on scales 
located conveniently to the working platform. After weighing the 
materials are raised to the working platform, the sulphur being car- 
ried to the mixer, line /—/, while the lime goes directly to the cook- 
ing tank as indicated by line A-Z. Hot water, line 7, for slaking 
the lime is drawn from the hot water tank while that required for 
making the sulphur paste is supplied from the same source by bucket 
or hose, along line V. The sulphur paste is run into the cooking tank 
as indicated by line 0. The cooked concentrate is drawn off by line 
@ and run into the filter tank from which the strained solution is 
drawn as indicated by line # and barreled or by means of a long 
hose connection supplied directly by gravity or pump to a spray 
tank backed up to door @. Line S indicates the course of concentrate 
intended for immediate use while the course of that barreled and 
stored for future delivery to trucks or wagons through door B is as 
indicated. Lines U and V, terminating at W, show the convenient 
disposal point for the sludge and waste. Fuel would be brought in 
through door Y. This arrangement provides for the movement of 
materials up one side of the building, through the cooking and strain- 
ing apparatus, and down the other side, thus avoiding all interference 
between operations. The floor space required, not including any for 
raw materials or finished product, is approximately 24 by 26 feet. 
110416°—22——-3 
