ELECTRO FORMED CONDUCTOR FOR TELEPHONE DROP WIRE 1127 



Fig. 9 — • Solutions for the plating operations are stored in this battery of tanks. 

 Full safety equipment is worn by the operator as he performs the job of tank- 

 filling. 



floor. It returns by gravity to the storage reservoir and the cycle is re- 

 peated. 



The storage reservoirs are cylindrical horizontally mounted steel tanks. 

 Those containing acid solutions are Koroseal lined, and many are covered 

 externally with thermal insulation. All tanks have the same inside di- 

 ameter, but vary in length depending on storage requirements for each 

 electrolyte. Since the electrolyte used in similar unit processes of the two 

 machines is the same, provision has been made for complete interchange- 

 ability of solution between the storage tanks of the two machines. 



The purpose of the filtering operation is to permit the continuous re- 

 moval of suspended solids and foreign material in the process solutions. 

 The mixing and filter station provided for this purpose is an assembly 

 of components all of which are mounted on a common base or platform. 

 The basic assembly consists of a closed pressure type alluvial-leaf filter, 

 centrifugal pump, mixing tank with agitator, various valves for directing 

 and controlling the quantity of solution, water and air used in the filter 

 operation, and a discharge to sewer for cleaning. Within the pressure 

 tank a series of double faced screen assemblies or leaves comprise the 



