Reliable Electric Company

William S Sedlacek

William A Brey

Edward S Paluch

Paul S Lundsgaard

Louis Reffay

A terminal block comprises clip type terminals which snap fit into the block and project outwardly from opposite faces of the block. The terminals are disposed in an array consisting of a number of rows and columns. At opposite margins of the terminal block are fanning strips for receiving the wires that are joined to the terminals. The block has recesses for the wires and the recesses are progressively deeper as they extend from the center of the block toward the fanning strips, thereby avoiding a buildup of conductors at the terminals that are adjacent to the fanning strips. The fanning strips also have resilient fingers that retain the wires in the various slots of the fanning strip.

Terminal block

A line protector for communications circuits comprises a gas tube having external contact surfaces for connections to communication lines and to ground. A conductive member is proximate to the contact surfaces that are associated with the communication lines. A dielectric substance interposed between the conductive member and the last-mentioned contact surfaces melts upon overheating of the protector resulting from the excessive line current. The conductive member, due to its resiliency, engages the subjacent contact surface or surfaces thereby resulting in a direct short circuit between the protected line and ground. A shield over at least part of the gas tube in the region of the conductive member prevents potting compound or foreign matter from obstructing the function of the conductive member.

Line protector for communications circuit

A modular distribution frame assembly for carrying telephone line terminal and protection blocks in a substantially complete factory-prewired condition. The modular distribution frame has a base for securing to a floor support and a telescopic upper end for securing to an overhead support. The distribution frame assembly has a main vertical open column for receiving the plurality of jumper wires which are used to interconnect incoming subscriber or trunk lines with central office distribution lines. Incoming lines can be introduced into a secondary vertical open column located next to the main open (jumper) column for connection either directly to the appropriate protection or line terminal blocks or to a multiposition connector which has its mating half mounted to and electrically connected to the appropriate protector or line terminal blocks. Central office distribution lines are also connected either directly to the appropriate protector or line terminal blocks or to a multi-position connector which has its mating half mounted to and electrically connected to the appropriate protector or line terminal blocks. Multi-conductor cables with connectors on each end or cables wired directly to the blocks with connectors at one end only can be provided for rapid interconnection between the protector blocks and the appropriate line terminal blocks, or cables wired directly between appropriate blocks. A plurality of prewired modular distribution frames are secured next to one another in a row or circular pattern and interconnecting jumper cables are connected between selected groups of the frames to minimize the length of jumper wire needed to connect an incoming protected wire pair with a central office wire pair.

Growing community of inventors

Chicago, IL, United States of America

William S Sedlacek