LAWS OF MOTION 



61 



The operation of the chip wringer is comparatively simple. 

 Suppose the liquid is to be extracted from a pile of bolts 

 arid nuts. The bolts and nuts are placed in the basket, sus- 

 pended above its casing by means of a device. The basket is 

 then lowered into its 

 casing. When in 

 this position, ready 

 to be set in motion, 

 there is a very nar- 

 row slit between the 

 rim of the basket 

 and the casing. This 

 slit is so narrow that, 

 although liquid can 

 readily flow through 

 it, the passage of 

 any solid particles 

 is prevented. 



The basket is then 

 set in motion and 

 made to revolve at 

 a high speed. The 

 centrifugal force 

 thus generated 



forces the bolts and nuts to the sides of the basket and throws 

 off the liquid. (The amount of centrifugal force generated 

 increases with the revolutions per minute [R. P. M.] of the 

 basket.) All the water thrown off is ejected from the basket 

 through the narrow slit just described. When all the water 

 has been removed in this way, the machine is stopped. The 

 basket is then raised, carried along to a convenient place, 

 and dumped. 



FIG. 38. Inverted Basket of Centrifugal 

 Machine. 



