32 Farmers’ Bulletin 1285. 
TABLE 5.—Program for operating a double-cooker lime-sulphur plant with one 
group of workers. 
Batch No. 1. Batch No. 2. Batch No. 3. Batch No. 4. 
Time.| Intank No.1. /Time. In tank No.2. |Time.| Intank No.1. |Time.| In tank No. 2. 
7.00 | Prepare materi- 
als for batch. 
7.15 | Introduce into 
tank; bring to 
boiling; _pre- 
mes to draw 
f 
off. 
.30 | Begin boiling | 7.30 | Preparations for 
7 
period. | drawing off. 
7.45 | Prepare materials 
for batch. 
8.00 | Spare time. 
8.15 | Introduce into 
8.20 | Draw off and tank; bring to 
barrel. boiling. 
8.30 | Begin boiling pe- 
riod. 
8.35 | Clean tank. 
8.50 8.50 | Prepare materials 
for batch. 
9.05 | Introduce into 
tank; prepare to 
draw off. 
9.20 | Draw off and bar- | 9.20 | Begin boiling pe- 
rel. riod. 
9.35 | Clean tank. 
9.50 9.50 | Prepare materials 
for batch. 
10.05 | Introduce into 
10.10 | Draw off and bar- tank; bring to 
rel, boiling. 
10,20 | Begin boiling pe- 
riod. 
10.25 | Clean tank. 
10.35 
10.40 10.50 | Prepare for drain- 
ing off. 
11.10 Diam off and bar- 
rel. 
11.25 | Clean tank. 
11.40 | General clean-up; 
prepare for after- 
noon work. 
12.00 
It is likely that different owners will find it advisable to make 
changes in the suggested program because of the difference in the 
efficiency of the workers. This is to be expected, but care must be 
taken not to start the cooking of a batch at such a time that it can not 
be handled promptly when it is ready. It might be found advisable, 
when operating a plant in this manner, to have one man act as super- 
visor so as to avoid delay, duplication of effort, or interference with 
operations. If the contents of each tank are to be cooked at the same 
time and consequently drawn at the same time, more workers will be 
required, and it might be possible to reduce the periods other than 
the cooking period enough to permit preparation of six instead of 
four batches during 5 hours’ operation. 
Figures 31 and 32 explain the arrangement, operation, and routing 
of the large orchard or community double-cooker furnace-type plant 
shown in Figures 27 to 30. In this layout a side-hill location is 
assumed with delivery of the raw materials at the uphill door, as 
indicated in Figure 31, which is a plan at a level above the working 
platform. Figure 32 shows the arrangement and routing below the 
platform level and hence does not show the raw material storage space. 
