Opere pubbliche . caricato dal serbatoio e scorrerà downthe poco Cahaba per la giunzione di tale flusso conla fiume principale. Qui una piccola deviazione di dam soplaced è che la corrente nel fiume maggiore è ri-versed, e l'acqua scorre a monte nel BigCahaba alla stazione di pompaggio. L'acqua prelevata da theCahaba è pompata sopra themountains al filtro planton top di sfumature Mountain,sei miglia ad est della città. Injiumping dal Cahabasupply al filtro impianto la]iumps lavorare contro una testa di458 piedi. CAHABA stazione di pompaggio delle apparecchiature al Ca-haba stazione di pompaggio è mod-ern e

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Public works . charged from the reservoir and will flow downthe Little Cahaba to the junction of that stream withthe main river. Here a small diverting dam is soplaced that the current in the larger river is re-versed, and the water flows upstream in the BigCahaba to the pumping station. The water taken from theCahaba is pumped over themountains to the filter planton top of Shades Mountain, six miles east of the city. Injiumping from the Cahabasupply to the filter plant, the]iumps work against a head of458 feet. CAHABA PUMPING STATION The equipment at the Ca-haba pumping station is mod-ern and complete. An inter-esting feature is that the waterworks company owns andoperates its own coal mine, taking from the mountainsalong the river all the coal ituses for pumping and for fur-nishing electric light to thepumping station and filterplant. In all, the companyowns 440 acres of highgradecoal lands. The coal mine, situatedabout a mile from the Cahabapumping station, is entirely May 13, 1922 PUBLIC WORKS 333. VIEW SHOWING POWER HOUSE, CONCRETE ASHBIN AND COAL, HANDLING EQUIPMENT. FROM THETIME THE COAL IS DUG AT THE MINE ONE MILEFROM THIS PLANT UNTIL IT IS BURNED AND THEASHES CONVEYED TO STORAGE BIN, ALL OPERA-TIONS ARE MECHANICAL. THIS NEW POWEJlHOUSE ALSO CONTAINS LARGE BUNKERS FORCOAL STORAGE. electrified, and as much use of machinery as possibleis made. The mined coal is not touched by hands fromthe time it leaves the mine until it is hauled away tothe dump as ashes. A narrow gauge railway is usedto transport the coal from the mine to the station, where it is automatically dumped into a crusher, whence it is carried by conveyors into a 250-ton coalbunker in the roof of the pumping station. From thisbunker, it is fed by Taylor underfeed stokers to twonew 509-horsepower Babcock and Wilcox boilers, just installed. Coal meters measure the amount of thecoal used. The ashes are dropped into a pit, andthen blown by steam conveyor into a concrete bin, from which they are dumped into

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1890
• booksubjectmunicip
• bookyear1896