Room status signaling system

Abstract

Abstract A room status signaling system is disclosed herein employing a plurality of separate signaling circuits employing the internal telephone wiring so that a separate signaling circuit is provided for each room. The plurality of signaling circuits terminate at a central location or board having an indicator such as a lamp for displaying the status of a room. Each signaling circuit not only includes an indicator lamp in series, but further terminates at its opposite end to a switch located at the room. The switch includes a housing having a slot adapted to receive a coin and a chamber for holding the coin after it has been inserted into and through the slot. The chamber further includes a pair of fixed spaced apart contacts which are insulated from each other and which are mechanically and electrically connected together when the coin is held in the chamber of the holder. The signaling system further includes a coded key which is insertably received through the slot so as to project into the chamber to displace the coin from the chamber and break electrical and mechanical connection between the connectors. The presence of either the metallic coin or the insulated key completes or breaks electrical circuit in the signaling system so as to energize or de-energize the lamp or respective indicators at the central location.

Inventors

• 👤 Bethel F. Schultz

Bibliographic Details