A new general-purpose relay for telephone switching systems

THIS paper describes a new general-purpose electromagnetic relay for use in telephone switching systems. It is a wire spring relay known as the AF-type relay and, with variations which provide slow release or marginal characteristics, it is known as the AG and AJ relay respectively. Figure 1 shows a typical AF-type relay, Figure 2 shows all of the parts of the relay, and Figure 3 shows the relay assembly.