IMPROVED COTTON AIRPLANE FABRIC. 9 
PERCENTAGE OF WASTE. 
Weighings of stock and waste were made at the different machines 
from the pickers through the combers, and from these data the per- 
centages of waste discarded during each process were found, as shown 
in Table 3. 
Table 3. 
Waste percentages of American Egyptian, Sea Island, and Sakellaridis 
Egyptian cotton. 
Kind of cotton 
Pima A. E. 
Sea Island. 
Sakellaridi 
Grade 
/Fancy or 
\ No. 1. 
fl B/C No. 1 
or fancy. 
2 B/C No. 2 
or extra 
choice. 
2 B/C No. 3 
I or choice. 
High grade. 
Lower grade. 
Length of staple 
If inches. 
IrV inches. 
IrV inches. 
1-rs inches. 
PICKERS. 
Opener-breaker: 1 
Visible 
1.16 
1.17 
2.17 
.87 
1.17 
1.30 
1.73 
Invisible 
1.38 
Total visible and invisible 
2.33 
.48 
. 77 
3-04 
.65 
.89 
2.47 
.55 
.98 
3.11 
Finisher: 1 
Visible . 
1.06 
Invisible 
1.26 
Total visible and invisible 
1.25 
1.63 
1.92 
1.54 
2.80 
1.73 
1.53 
1.71 
2.25 
2.32 
Through pickers: s 
Visible 
2.76 
Invisible 
2.60 
Total visible and invisible 
3.55 
4.41 
.86 
1.29 
.17 
4.53 
4.13 
.85 
1.25 
.24 
3.96 
4.19 
.75 
1.25 
.16 
5.36 
CARDS. 1 
4.62 
Cvlinder and doffer strippings 
.87 
Motes and flv 
2.12 
Sweepings 
.23 
Total visible 
6.73 
.30 
6.47 
Gain . 47 
6.35 
Gain . 50 
7.84 
Invisible 
0.00 
Total visible and invisible 
7.03 
8.12 
2.20 
6.00 
8.98 
1.28 
5.85 
7.81 
1.77 
7.84 
Pickers and cards: * 
Visible 
10.18 
Invisible 
2.60 
Total visible and invisible 
10.32 
20.56 
.34 
10.26 
19.27 
Gain .95 
9.58 
20.11 
Gain . 76 
12.78 
COMBER.l 
Visible 
23.32 
Invisible 
Gain .08 
Total visible and invisible 
20.90 
26.59 
2.50 
18.32 
26.27 ! 
19.35 
25.99 
23.24 
Pickers, cards, and combers: * 
Visible 
30.52 
Invisible 
.43 | 1.08 
2.53 
29.09 
26. 70 27. 07 
33.05 
1 Percentages based on the net weights fed to the respective machines. 
* Percentages based on the net weights fed to the opener. 
185339°— Bull. 882—20 2 
