. Il giornale ferroviario di strada . e arpa di ottone. Grazie alla particolare forma dell'arpa non vi è usura su di essa, mentre la forma permette la massima resistenza possibile. Il perno è in acciaio e temprato, e durante i cinque mesi di utilizzo di questo dispositivo sulla Sioux City Railwayno pin sono ancora usurato. Il perno è fissato in borchie sull'arpa, e riempito con grafite lubrificante secca, saldato dalla Graphite Lubricating Company, ofBound Brook, N. J. ha una TESTA TROLLEY di tre quarti, un foro di pollice per tutta la sua lunghezza, equattro e un-ottavo pollice fori sono forati nel centro del perno. Il

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. The Street railway journal . e brass harp. Owing to the peculiar shapeof the harp there is no wear upon it, whilethe shape allows the greatest possiblestrength. The pin is made of steel and casehardened, and during the five months useof this device on the Sioux City Railwayno pins have yet worn out. The pin issecured into bosses on the harp, and isfilled with dry lubricating graphite, soldby the Graphite Lubricating Company, ofBound Brook, N. J. It has a three-quarter TROLLEY HEAD, inch hole through its entire length, andfour and one-eighth inch holes are bored into the pin inits center. The graphite can escape only through theseholes, and as graphite is a conductor there is perfectlubrication, while the wheel runs perfectly cool. Thereis no need for side springs, as the one-inch pin gives moresurface than is really needed for carrying off the current. In another form of head, graphite in the form ofpaste is used, and this is fed to the bearing by a screwfitting into the end of the pin which is set up as required.. 252 THE STREET RAILWAY JOURNAL. [Vol. X. No. 4. New Easy Exit Car. Since the advent of electricity and cable as motivepowers for street railways, and the consequent increase ofpassengers carried, it has been found that the old methodof constructing street cars must be improved on, and pas-sengers handled easily and rapidly. The crowding of platforms, and consequent difficultyof entering and leaving a car, has troubled many man-agers. A new type of car, the invention of Wm. Sutton, president of the American Car Company, of St. Louis, hasbeen put upon the market with the object of overcomingthe above difficulty. It is shown in the accompanyingengraving. The car is provided with double doors, one of whichis of the ordinary sliding type, but made to move fromone side of the opening to the other. The other is pivotedin the center of the opening, swings out towards the plat- New Transfer Ticket.

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1880
• bookidstreetrailwa
• bookyear1884