120 



TEXTILE FIBRES. 



the construction, evenness, elasticity, and strength of the yarn can be 

 relied upon and guaranteed. 



Spinning-Koom. To spin the material into yarn it is necessary to 

 have the room heated to from 70 F. to 90 F. In fine spinning mills it 

 mostly varies from 80 F. to 90 F. Fresh-air humidifiers have been 

 introduced into fine spinning-rooms these cause a current of air from 

 outside to be passed through mushroom-shaped tubes and over heated 



Fig. 80. Strands of two Slubbings. 



water, thus moistening the air and rendering the fibres of cotton more 

 cohesive, and the yarn less oozy or woolly, but stronger and more elastic. 



Fig. 82 shows a spinning-room and self-acting mule for weft spinning 

 in a Preston cotton mill. The mules are run from a line shaft fixed the 

 whole length of the room, with the drums and straps attached. The 

 height of the room is about 14 feet. I am indebted for this photograph 

 to Sam Gilbert, Esq., of Preston. 



