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Telephone system teaching apparatus

  • US 3,964,179 A
  • Filed: 11/07/1974
  • Issued: 06/22/1976
  • Est. Priority Date: 11/07/1974
  • Status: Expired due to Term
First Claim
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1. A teaching apparatus for use in teaching number discrimination, mathematical concepts, letter discrimination, reading and various verbal concepts, comprising a telephone switchboard having a plurality of signal display sections and a plurality of signal transmitting sections, a plurality of telephones each including a cradle and handset, electric circuits including switches electrially connecting each telephone to one of said signal display sections and to signal transmitting section associated with said signal display section, signal generating means connected to said electric circuits whereby when any telephone handset is removed from its cradle visual signals will be illuminated on the signal display section and the signal transmitting section associated therewith, a signal box associated with each telephone and electrically connected to the signal transmitting section thereof, said signal box having a plurality of light sources each disposed beneath an indicia bearing window, said signal transmitting section having a plurality of switches by which the light sources beneath said windows can be selectively energized for visually transmitting instructions to the student telephone user, said signal display section having symbols corresponding to the dialing symbols of the telephone and each associated with a light source electrically connected to said telephone symbol whereby the student telephone user can visually transmit to the student operator through said signal display section the designation of a telephone to be called, each of said transmitting sections having a plug and a jack whereby the student operator can remove the plug from the transmitting section connected with a calling telephone and apply it to the transmitting section connected to the telephone to be called, and a switch mounted on each transmitting section and connected to an audible and visual signal of the signal box associated therewith, said last mentioned switch being movable to one position for actuating the audible signal and thereafter to another position for actuating the visual signal of the signal box of the telephone being called.

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