Time Services of the Telegraph Companies

The proper distribution of time information requires a continuity of accurate service. This the systems described aim to accomplish by the subdivision of the distribution into local areas each entirely independent of all others. The equipment in each area is capable of rendering an accurate time service to subscribers in that area for extended periods without assistance from other sources and by the nationwide dissemination of standard signals may be held to a negligible variation from true time. The equipment and operating methods are such that troubles occurring within the area will produce a minimum of interference with the accuracy of the distribution within that area and will be promptly indicated so that they may be remedied.