telegraph register (telegrafrej"ister)

A form of receiving instrument which makes a permanent record of the signals received. See steel wires, such as is used for submarine work (the conductor is shown at d, and is usually surrounded by a gutta-perch a or india-rubber tube for insulation); b shows the end of a multiple-wire cable suitable for aërial suspension; while c is a similar multiple cable inclosed in a metal tube, usually of lead, suitable for underground work. A