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BELL SYSTEM TECHNICAL JOURNAL 



The basement under the Rod Mill houses the electrolytic equipment, 

 control boards for the roughing and intermediate mills, pumps for 

 cooling water, and exhaust fans connected with an air washer for re- 

 moving the fumes from the Rod Mill. A tunnel which passes beneath 

 the intermediate and finishing mills connects with a room which houses 

 the drives for the four rod coilers, the coiler control boards, the finishing 

 mill control board, and the main power panel. In the wire mill base- 



Fig. 13 — Close-up view of units of No. 3 wire drawing machine 



ment are six large tanks which hold the compound used to lubricate 

 and cool the wire drawing dies. This compound is supplied under 

 pressure to the wire drawing machines on the floor above and returns 

 by gravity. 



All the wire drawing machines are controlled by push buttons 

 mounted on the machines, which connect with compensators in the 

 basement. The 100 horse power motors driving the large wire drawing 

 machines are mounted in a tunnel and are connected to the machines 

 above by chain drive. 



This arrangement permits accessibility for maintenance of the 

 electrical equipment with a minimum of interference to production, 

 prevents the wire drawing operators from having access to the elec- 

 trical equipment, and reduces accident hazard to a minimum. 



