Telephone answering and recording device

Claim 1

A telephone answering and recording device which comprises, in combination: A. a first endless magnetic tape having a predetermined length of about 1 minute per cycle on which outgoing message is recorded, said outgoing message tape being provided with a short tape contact at the end thereof, B. a second endless magnetic tape having a length an integer times as long as that of said first endless tape on which outgoing and incoming messages are recorded, said incoming message tape being provided with a long tape contact at the end thereof, C. the width of each tape being variable, D. a capstan and a pinch roller which transport said first and second magnetic tapes in contact therewith simultaneously, E. a motor for driving said capstan, F. a recording and reproducing head and an erase head exclusively for said outgoing message tape and an amplifier therefor, G. a recording and reproducing head and an erase head exclusively for said incoming message tape and an amplifier therefor, H. an input transformer provided with a plurality of windings, and receiving a signal from the telephone line and transmitting a voice signal to the telephone line simultaneously, I. a relay provided with a plurality of contacts, J. a transistor switch actuated by the diodes rectifying a ringing signal induced to the secondary winding from the primary winding of said input transformer, said switch being disposed on said relay, K. an electric source for energizing said motor, said relay, and said two amplifiers, L. a pilot lamp connected in series to the coil of said relay and indicating a plurality of functions, M. means to make a closed circuit of the telephone line through a contact actuated upon the energization of said relay and a primary winding of said input transformer, N. means to transmit an output derived from said amplifier for the outgoing message to a tertiary winding of said input transformer, O. means to transmit an input derived from a secondary winding of said input transformer to said amplifier for the incoming message, P. a plurality of manual switches, Q. contact means to constitute a ground circuit of said pilot lamp in response to said short tape contact provided on said outgoing message tape, and R. means to render said transistorized control circuit inoperative in response to said long tape contact provided on said incoming message tape.