English: Identifier: electricrailway331909newy

Title: Electric railway journal Year: 1908 (1900s) Authors: Subjects: Electric railroads Publisher: [New York] McGraw Hill Pub. Co Contributing Library: Smithsonian Libraries Digitizing Sponsor: Smithsonian Libraries

View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book

Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image: h of 2-in. iron pipe. This casting is 38 in. in lengthand is standard for all work, while the length of the pipevaries from 53 in. to 57 in. to suit the lean of the pole. Ascrewed flange is furnished at one end of the bracket for at-tachment to the pole. This is effected by a bolt at the top,which passes through the pole, and a lag screw at the bot-tom. The free end of the bracket is provided with a lugfor the reception of a s-g-in. stay rod. A section of one of the insulators is also shown; theyare of porcelain, and measure 5 in. in diameter and 5 in.in height. The insulator pins are in the form of a metalpipe, one end of which is screwed into the malleable ironcasting and the other flared to a bell mouth to conformwith the shape of the insulator. The insulators are at-tached to the pins by cement. In the towns, where span construction is adopted, thetrolley is doubly insulated by insulators like those on thebrackets on the poles, and also by goose-egg insulators Porcelain In-sulator

Text Appearing After Image: Pittsburg 1200-Volt Line—Typical Overhead Trolley Construction with Bracket Poles from standard practice. The material employed was man- inserted in the span wires on both sides of the ears,ufactured according to the designs patented by James Bryan feeders and H. Etheridge. A grooved No. 0000 copper trolley is The feeders for supplying the Butler section are of 96 ELECTRIC RAILWAY JOURNAL. [Vol. XXXIII. No. 3. stranded aluminum. For the first 7 miles the cable has acapacity of 500,000 circ. mil, and the second cable, which isstrung parallel to the first, is 10 miles in length and hasa capacity of 750,000 circ. mil. These cables are carriedon the poles which support the trolley wire. ELECTRICAL EQUIPMENT OF CARS At present there are 14 four-motor passenger equipmentsin operation, and two additional cars for carrying freight Swinging zcsrnoiehBracket icoovmA ^C5G Panels l?0OV. 400Kv> 2 ~7 Panels 125 VBC GiTy UeoOVA C lOOKnIncoming line /sooySCBus

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.