4 BULLETIN 62, U. S. DEPARTMENT OF AGRICULTURE. 



Tabi.k I. — Orgamiatwns. speed, and settings used with regular mill machines for jive 

 official cotton grades — Continued. 



SPEEDS (R. p. M.y 



Machine. 



No. 12's 

 from Good 

 Ordinary. 



No. Ib's 

 from Low 

 Middling. 



No. 22's 

 from Mid- 

 dling. 



No. 2S's 

 from Good 

 Middling. 



No. 30's 

 from Mid- 

 dling Fair. 



Opener be-aler (3-blade ) 



Breaker beater (2-biade i 



Fan 



Intermediate beater (2-blade). 



Fan 



Finisher beater (2-blade) 



Fan 



Card cylinder 



Doffer 



Drawing, calender roll 



Slubber F. R., 11X5',. 



Intermediate F. R.,9X« 



Fine-frame F. R., 7X3i 



Spinning F. R 



Spindle 



1,170 



1,460 



1,260 



1,400 



900 



1,460 



900 



165 



13 



315 



195 



182 



150 

 ,500 



1,170 



1,460 



1,200 



1,460 



900 



1,460 



900 



165 



13 



315 



192 



182 



180 



140 



8,000 



1,170 



1,400 



1,260 



1,460 



900 



1,460 



900 



165 



1-2 



315 



192 



160 



130 



120 



8,200 



1,170 



1,460 



1,260 



1,460 



900 



1,460 



900 



165 



12 



315 



175 



157 



130 



114 



9,000 



1,170 



1,460 



1, 260 



1,460 



900 



1,460 



900 



165 



12 



31.T 



130 

 150 

 120 

 108 

 9,000 



SETTINGS. 



Machine. 



Opener-feed roll to beater 



Grids from beater (top) 



Grids from beater (bottom) , 



Breaker-feed roll to beater ....... 



Grids from beater (top) 



Grids from beater (bottom) 



Intermediate-feed roll to beater. 



Grids from beater (top; 



Grids from beater (bottom) 



Finisher-feed roll to beater 



Grids from beater (top) 



Grids from beater (bottom) 



Card: 



Feed plate to licker in 



Mote knives (top) 



Mote knives (bottom) 



Licker in to cylinder 



Back plate to cylinder 



Flats to cylinder (back). . 

 Flats to cylinder (center). 

 Flats to cylinder (front). . 

 Front plate to cylinder. . . 



Doffer to cylinder 



Doffer comb to doffer 



Licker in screen (front). . . 

 Licker in screen (back). . . 

 Cylinder screen fback). . . 

 Cylinder screen (center). . 

 Cylinder screen (front). . . 



No. 12's 

 from Good 

 Ordinars'. 



No. 16s 

 from Low 

 Middling. 



Gauge. 



10 

 12 

 10 

 10 

 22 

 11 

 10 

 9 

 29 

 7 

 22 



125 

 22 

 22 

 70 



125 



Drawing (2 processes) l|,li,l| 



Slubber roUs l|, If 



Intermediate rolls I l|» ^1 



Fine fly frame rolls l|, l| 



Spiiming rolls l-Ai U 



Inch. 



1 



Gauge. 

 10 

 10 

 12 

 10 

 22 

 11 

 10 

 9 



22 



7 



22 



125 

 22 

 22 

 70 



125 



No. 22's 



from 

 Middling. 



Inch. 



1 



1 



Gauge. 

 10 

 10 

 12 

 10 

 22 

 11 

 10 

 9 



22 



7 



22 



125 

 22 

 22 

 70 



125 



li,l| 



1A,U 



No. 28's 

 from Good 

 Middling. 



Inch. 



Gauge. 



10 

 10 

 12 

 10 

 22 

 11 

 10 

 9 

 22 

 7 

 22 



125 

 22 

 22 

 70 



125 



ij.ii 



No. 36's 

 from Mid- 

 dling Fair. 



Inch. 



Gauge. 



10 

 10 

 12 

 10 

 22 

 11 

 10 

 9 



22 

 7 

 22 



125 

 22 

 22 

 70 



125 



1|,U,1S 



In spite of tho fact that some of the grades would rarel}^ be spun 

 into yarn of these sizes, it was thought best for A^arious reasons to 

 spin all the grades into one size of yarn at the Danville mill. The same 

 cotton will be used in smaller quantities at the two textile schools 

 and spun as nearly as possible under the same conditions. At one 

 of the schools the miU tests will bo duplicated; at the other a varia- 



