. The Street railway journal . failing supply of water. It is quite customary todrive wells for a water supply to supply the excess needed for the cooling apparatus. Various types of water-tube andreturn tubular boilers are in use. These need no descrip-tion. Mechanical stokers have not been used up to thepresent time. The Babcock & Wilcox type of travelinggrate is now being installed in a Rouen power house. Theprimary object of this is to comply with the desire of themunicipality to reduce to a minimum the smoke nuisance. Economizers are generally employed. Feed-water heat-ers are rarely inst
. The Street railway journal . failing supply of water. It is quite customary todrive wells for a water supply to supply the excess needed for the cooling apparatus. Various types of water-tube andreturn tubular boilers are in use. These need no descrip-tion. Mechanical stokers have not been used up to thepresent time. The Babcock & Wilcox type of travelinggrate is now being installed in a Rouen power house. Theprimary object of this is to comply with the desire of themunicipality to reduce to a minimum the smoke nuisance. Economizers are generally employed. Feed-water heat-ers are rarely installed in a condensing plant. Damperregulators are unknown—at least in the writers knowl-edge. Fig. 32 is a view of the station of the Omnibus &Tramway Company, of Lyons. This was until lately thelargest electric tramway station in France, but others, nota-bly at Marseilles and Paris, have now passed it. The limits of this article will not permit of an extendeddescription of the installations which are of especial in-. FIG. 31.—TRAIN ON THE NEW CONDUIT LINE OF THE PARISIENNE DE TRAMWAYS terest; they must, therefore, be only indicated very briefly. The opening of the lines in and about Nice is the firstexample here of a large system operated from an hydraulicstation, and connected to transforming sub-stations by along-distance three-phase transmission line. This gives aspecial interest to this installation, which will, undoubtedly,be followed in other places in the near future. This planthaving been described in the July number of the StreetRailway Journal, leaves no other comment necessaryuntil the results of operation can be accurately Potter surface contact system has been in operationfor more than two years in Monaco. This was describedin the May number of the Street Railway Journal. Theonly comment to be made is that this system has proveditself to be a workable one, and that for similar climaticconditions it could be safely installed. The particul
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