. Electric railway gazette . ttention tomature a hot-air furnace which he has inventedfor heating street cars, until recently. In ■•the present issue of the Street RailwayGazette, he places what appears to be amost valuable invention on the market. ■ Mr. Zimmerman makes three kinds ofheaters; (i) the Gem, for bob-tail cars;{^) the Princess, for the medium sized the furnace. The furnace is provided with afire grate (Fig. 6) which is operated (shaken ordumped) by a lever (Fig. 7) from underneath theside of the car (outside). The smoke pipe runsdirectly from the furnace through the roof of thecar


. Electric railway gazette . ttention tomature a hot-air furnace which he has inventedfor heating street cars, until recently. In ■•the present issue of the Street RailwayGazette, he places what appears to be amost valuable invention on the market. ■ Mr. Zimmerman makes three kinds ofheaters; (i) the Gem, for bob-tail cars;{^) the Princess, for the medium sized the furnace. The furnace is provided with afire grate (Fig. 6) which is operated (shaken ordumped) by a lever (Fig. 7) from underneath theside of the car (outside). The smoke pipe runsdirectly from the furnace through the roof of thecar. A perforated Russia iron pipe of largerdimensions encircles the smoke pipe, and throughthese perforations warm air is admitted plenti-fully into the car. Four recessed rings (Fig. 8),placed equidistant, surround the perforated pip-ing, and ten strips of hard wood (about i inch byl4 inch) are fixed vertically in the recesses ofthese rings, evenly spaced all round, ash andwalnut alternately; and the vertical strips are. Fig 3—Zimmerman Heater. cars; and (3) the Peerless, for the larger: cars. We avail ourselves of the oppor-I tunity here to describe the Peerless andii its parts. Fig. I shows the Zimmerman heater inT position in the car. Fig. 2 represents thecast-iron floor ring, 24 inches diameter,1 which has a flange resting on the floor ofthe car, together with a lower flange per-forated with holes through which air is ad-mitted to circumscribe the heat, that is, toprevent the ring and the register from becomingtoo hot; and while it does that, the air is thor-oughly wanned as it enters there-through intothe car. Fig. 3 shows a casing which rests inthe floor ring and supports the furnace; it is 20inches diameter at the top, and 10^ inchesdeep. Fig. 4 shows the inverted cone-shapedfire-pot, which is set in the casing, and supportedby lugs, as shown in the cut. Fig. 5 representsthe register, which is round and measures 20inches in diameter; it is provided with an open-in


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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895