. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ie shops ofthe General Electric Company. Amongthese are cars being built for the Mis-souri & North Arkansas, Texas Midland,Pittsburg & Lake Erie, Rock Island andFrisco System railways. One of themost significant tendencies in connectionwith the introduction of gas-electric carsis exemplified in the fact that 40 per the roads on which they are operated,have subsequently installed additionalcars. Among the largest users of gas-eiectric cars is the Frisco System, whichnow has seventeen o


. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ie shops ofthe General Electric Company. Amongthese are cars being built for the Mis-souri & North Arkansas, Texas Midland,Pittsburg & Lake Erie, Rock Island andFrisco System railways. One of themost significant tendencies in connectionwith the introduction of gas-electric carsis exemplified in the fact that 40 per the roads on which they are operated,have subsequently installed additionalcars. Among the largest users of gas-eiectric cars is the Frisco System, whichnow has seventeen of these self-propelledunits running regularly on branch lines. Storage commenced in our last issue thedescription of the lead storage battery,pointing out that the accumulation of elec-tric power in the battery was due to a I • MM FIG. 2. TUDOR POSITIVE GROUP. chemical change and not to a storage ofelectricity in the strict sense of the the battery is put on charge, theelectric current passing through the bat- December, 1912. RAILWAY AND LOCOMOTIVE ENGINEERING. 457. FIG. 3. ROLLED NEGATIVE GROUP. tery causes a change in the lead chemical change remains in thiscondition until the terminals of the bat-tery are connected to motors, lamps, etc.,when an electric current will flow fromthe battery due to the force which existsfor the plates to return chemically totheir original condition. Storage or secondary batteries, as theyare sometimes called, can be divided intotwo kinds, according to the process ofmanufacture of the lead plates, commonlyknown as the Plante and Faure types. Inthe former the pure lead plates, areformed by repeated charging and dis-charging, until the surface of the platesbecome porous or spongy for a consider-able depth. The plates are designed topresent large surface area to the actionof the electrolyte (the solution in whichthe plates are immersed). In the latter,or Faure type, the active material isformed and placed or past


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901