Automatic dialing apparatus for telephones

Details Automatic dialing apparatus for telephones Automatic dialing apparatus for telephones

1975-03-20

1976-11-23

Claffy, Kathleen H.

179 90CS, H04M 145

Patent

active

039938760

ABSTRACT:
An automatic dialing apparatus, for telephones with conventional circuitry which make station connection by coded patterns of successive circuit interruption, including a self-contained power supply, an electric motor driven by the power supply, a gear system connected to the electric motor, a memory disc embodying a telephone number by the disposition of protuberances in concentric annular coded arrangement thereon, said disc being removably connectable to the gear system for rotation by the motor, and a circuit adapted to interconnect with the conventional circuit having a microswitch disposed to engage the protuberances on the disc so as to interrupt the conventional circuit each time the switch is engaged by a protuberance.

REFERENCES:
patent: 1593992 (1926-07-01), Smith
patent: 2348758 (1944-05-01), Samburg et al.
patent: 3118976 (1964-01-01), Scott
patent: 3272925 (1966-09-01), Worley et al.
patent: 3274344 (1966-09-01), Young
patent: 3556043 (1971-02-01), Nicolas

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