Bid and specification for the furnishing and erection of an Edison incandescent electric light plant for the Allegheny County Court House and jail, Pittsburgh, Pa.... (1887)
Edison United Manufacturing Company. · Edison United Manufacturing Co. · leaf 17
use a double-pole safety catch, of suitable sizeand design, covered entirely by a neat iron box, for the purpose ofconcealing all of the p>arts of the same. Where the service of each quarter of every floor meets thedifferent distributing mams of that section, or where the distributingmains… … 9 SERVICE CON-NECTION. PLUGS, ORSAFETY DEVICES SWITCHES. CUT-OUTS, WALL CUT-OUTAND ROOM SWITCHESPRESSURE WIRES SOCKETS. LAMPS. CONNECTION OFFIXTURES. FEEDER WIRES. The service will pass through a double-pole main safety catch andwill then proceed to all the branch safety catches. To these mains,…
Electrical power generators · Low-voltage electrical power conductors and cables · Low-voltage switchgear · Facility Electrical Power Generating and Storing Equipment · Engine generators
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from The space-threshold of colours and its dependence upon contrast [microform] : first article (1898)](https://img.insideoutlibrary.com/img/200/ia-alberta_01297-1-1.webp)
