150 



DRESSING OF OEES 



The tables are mounted on a rectangular frame, to which also is fixed the transverse 

 beam which receives the blow. The surfaces of the table are planed as smooth as 



750 



possible, and are framed in and divided by the strips s. Each table is about 8 feet 

 long by 4 feet wide. 



At the lower end of the tables are openings, /, /*, / 2 , /*, under which are three 

 parallel launders, which receive the stuff from the respective divisions of the table, 

 the launder t receiving the clean mineral, the launder v a mixture of ore and waste, 

 and the launder B the waste. To obtain successful results from these tables, care 



751 



Ul U U 



must bo taken that the surfaces are perfectly smooth, and that in the direction of the 

 blows they are set so as to be quite horizontal. 



