. The Street railway journal . and fly-wheel design, anapparatus that insures the highest vacuum obtainable, at theleast cost for operation. The socket plug shown in the accompanying illustration hasbeen designed as a substitute for an incandescent lamp in placeswhere light is not needed throughout certain portions of theyear, as in parks, summer resorts, andfor sign work. Under ordinary cir-cumstances when the lamps are re-moved, the sockets, which are leftexposed to the elements, become badlycorroded and cracked. The breakageresulting from this cause frequentlyamounts to a very large proport
. The Street railway journal . and fly-wheel design, anapparatus that insures the highest vacuum obtainable, at theleast cost for operation. The socket plug shown in the accompanying illustration hasbeen designed as a substitute for an incandescent lamp in placeswhere light is not needed throughout certain portions of theyear, as in parks, summer resorts, andfor sign work. Under ordinary cir-cumstances when the lamps are re-moved, the sockets, which are leftexposed to the elements, become badlycorroded and cracked. The breakageresulting from this cause frequentlyamounts to a very large proportion ofthe total installation of sockets and re-ceptacles, and the cost of new ones,together with the price of labor neces-sary to replace them, forms a consid-erable item of expense. The socket plug illustrated is thoroughly weather-proof. A soft rubbergasket is interposed between the plug and socket, thus makingan absolutely water-tight joint. These plugs are manufacturedby the Weather-Proof Socket Plug Company, WEATHER-PROOFSOCKET PLUG +♦«- NEW PIPE WORKS The Ball & Wood Company, of 17 Battery Place, New York,has recently added to its works at Elizabethport a plant forturning out welded flanged pipe and pipe bending. The com-pany, in its steam engine work, has noted the growing demandof contractors and engineers for a pipe joint to withstand thehigher steam pressures coming into use and the increasingpreference for superheated steam, and its purpose is to meetthese requirements. It will not do pipe fitting and will under-take no piping contracts, but is prepared to quote prices andfill orders for the material used in this work. Not only in the use of steam, but in air, gas and water, mod-ern engineering finds its most economical applications in highpressures, and a joint in which the flange is neither screwednor expanded on the pipe, but is welded to it and a part of it,appeals to the reason and common sense of engineers. Theflanges are made of wrought steel
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
