Automatic telephone dialing apparatus with magnetic switch assem

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Retarded or delayed type

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Details

179 90B, 335206, 340365VL, H04M 1274

Patent

active

044081014

ABSTRACT:
A telephone number index and switch device has a series of magnetic switches which are located in fixed positions with corresponding surfaces disposed along a preestablished path of movement of a card finder associated with cards having names and telephone numbers. A magnetic actuator is carried by the card finder but is not in physical contact with the magnetic switches for successively actuating the magnetic switches. A second switch separate and independent from the magnetic switches is used to complete the automatic dialing once a number is selected from the index and a magnetic switch has been actuated.

REFERENCES:
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patent: 3060291 (1962-10-01), Clare
patent: 3151226 (1964-09-01), Jones et al.
patent: 3531599 (1970-09-01), Bodie
patent: 3598890 (1971-08-01), Suzuki
patent: 3600592 (1971-08-01), Mahon et al.
patent: 3721929 (1973-03-01), Gobriel et al.
patent: 4164630 (1979-08-01), Brodbeck
patent: 4257179 (1981-03-01), Oka et al.
patent: 4277651 (1981-07-01), Fisher et al.
patent: 4278845 (1981-07-01), Chiou

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