Lime-Sulphur Concentrate. 41 
small steam engine if steam is used for cooking. If the concentrate 
is prepared during slack periods the spray-pump engine may be 
used. 
ENGINE AND PULLEY SIZES. 
A 13-horsepower engine will drive the agitator in the smaller 
plants, while 24 to 5 horsepower engines will be needed for the larger 
plants. The size of the pulleys necessary to obtain 60 revolutions 
of the agitator per minute will depend upon the speed of the engine. 
In Table 2 under columns 26 to 29 recommended sizes of pulleys for 
five different engine speeds are given. The sizes of pulley A’, Figure 
8, are those usually found on engines operating at the speeds indi- 
cated. If the speed and size of pulley A are other than as given in 
Table 2, then the sizes of pulleys, Z, MW, and NV must be changed 
accordingly in order to cause the agitator shaft to turn at 60 revolu- 
tions per minute. 
ARRANGEMENT AND LOCATION. 
Temporary or makeshift lime-sulphur cooking plants are some- 
times located in the open without shelter for the plant or workers. 
A shelter, which need not be elaborate or expensive, is an economy 
in the end as protection from the weather prolongs the life of the 
equipment, especially that of a steam boiler or an engine, and makes 
it possible to operate the plant at any time. It is necessary at least 
to protect the stored supply of lime and sulphur. 
If the plant is housed all openings should be of liberal size in 
order that light and ventilation shall be ample and that fuel, mate- 
rials, and finished product may be handled easily. 
The arrangement of the plant should be planned with a view to 
labor and time saving. A hillside location, such that the raw mate- 
rials may be delivered readily at or slightly above the level of the 
working platform, is very desirable especially if there is available 
a gravity water supply which will deliver, without pumping, to the 
water tank and boiler. Such a plant might be termed a gravity 
installation, since the direction of practically every movement is 
on a leve. or downward, and the work can be carried on with a 
minimum of manual effort. 
The plant should be installed so that the different operations may 
be carried through in a logical sequence, without interruption or 
interference. Local conditions will. determine the relative positions 
of the several parts of the plant. It is obviously impossible to 
suggest arrangements applicable to all conditions, but the layouts 
and routing diagrams shown in connection with the different plants 
described should assist materially in planning an efficient arrange- 
ment. 
The fumes from boiling lime-sulphur will discolor lead-and-oil 
paint and cause it to peel off. The plant, therefore, should be situ- 
ated far enough away from painted buildings to avoid this. 
