. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . , thefeeder is motor driven. The power re-quired ranging from % to 2 standard motor equipment is 230-volt D. C. variable speed control, butspecial motors may be provided to meet complete control at all times, precludingtin- possibility of flooding or stoppage offeeding. As will be observed there is along contact of fuel screw with the fuelin the bins, the single bin supplying anynumber of feeders without structural com-plications. A single feeder may also beso equipped as to s
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . , thefeeder is motor driven. The power re-quired ranging from % to 2 standard motor equipment is 230-volt D. C. variable speed control, butspecial motors may be provided to meet complete control at all times, precludingtin- possibility of flooding or stoppage offeeding. As will be observed there is along contact of fuel screw with the fuelin the bins, the single bin supplying anynumber of feeders without structural com-plications. A single feeder may also beso equipped as to supply multiple burners,the substitution of feed screws of dif-ferent pitch being the only change neces-sary to increase or decrease the capacitybeyond the limits of the normal speedrange. The marked economical advantages inthe use of pulverized fuel has been re-peatedly pointed out in our pages, but itmay be again re-stated that the generalresults are: the ability to utilize thecheapest grade of locally available fuel,the absolute use of from 95 to 98 percent of the heat value, irrespective of the. LOPULCO COMBINATION FEEDER AND MIXER. th. requirements of the service, the quan-tity of fuel fed being proportional to thespeed of the feed screw, and the pitchand depth of the screw. For example, a5 ins. feeder equipped with a 3J/2 screw has a minimum capacity of850 lbs., and a maximum capacity lbs. of fuel per hour, with twelveintermediate steps. Feeders using as lowas 60 lbs. of fuel per hour and as highas 4,000 lbs. are already in operation andworking effectively and economically. The feeder is of heavy, durable con-struction throughout. The gears are ofmachine-cut steel, pinions of rawhide andthe interchangeable screw is of cast bearings are extra long, and thejoints are all ground or milled, andwhere necessary felt gaskets are the parts are readily accessible, andthe operation is noiseless and entirelyfree from leakage. The air for feedingand
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
