Armored telephone cord with a longitudinal strength member

摘要

An armored cord has flexibility and tensile strength for securing a telephone handset to a telephone housing. The cord includes an outer armored sheath which is designed for increased flexibility in that it allows the cord to bend readily over small radii. Tensile strength between the handset and housing is provided by an internal cable which absorbs the stress applied to the cord when subjected to unusually large longitudinal forces. The service life of the cord is lengthened, and the number of incidents causing out-of-service conditions is thereby reduced.