898 



THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1954 



Wire spring relay. 



that period as contrasted to their inclusion as components in automatic 

 welding and wire forming lines now being placed in operation. The per- 

 formance reported herein is based on individual operation. 



Part I — Automatic Multiple Resistance Welding of Twin Wire 



Combs 



The problem to be solved by Western Electric development engineers 

 was that of welding small blocks of palladium, a precious metal, to flat- 

 tened ends of 0.0226-inch diameter nickel silver wires molded in twin 

 wire combs. Fig. 2. In addition to a secure weld, close limits had to be 



Fig. 2 — Twin wire comb. 



