. The street railway review . pensed with entirely in these filters, water being the onlyfiltering medium. They should be set on a stand highenough so that a bucket can be passed under faucets iand 2 as shown in the diagram of the interior. Steamconnections are made at 4 and 5. Water is poured intothe pan until the filter is filled to within two inches of the top of the lower gage glass. In regular operation steamis turned on at 5 just enough to keep the water in thefilter at a temperature of 115 to 120 degrees Fahren-heit. Dirty oil is poured in at the top and after filteringthrough the water
. The street railway review . pensed with entirely in these filters, water being the onlyfiltering medium. They should be set on a stand highenough so that a bucket can be passed under faucets iand 2 as shown in the diagram of the interior. Steamconnections are made at 4 and 5. Water is poured intothe pan until the filter is filled to within two inches of the top of the lower gage glass. In regular operation steamis turned on at 5 just enough to keep the water in thefilter at a temperature of 115 to 120 degrees Fahren-heit. Dirty oil is poured in at the top and after filteringthrough the water as indicated by the arrows is drawnoff for further use at 6. Faucet 3 is for use only whenthe surface of the oil falls below 6. To clean the appa-ratus faucet 6 is opened and water slowly poured in atthe top until no more oil runs from 6. Then the steamconnection valve at 4 is opened wide as are also faucetsI and 2, and the dirt will wash out. «# * Cleaning an Oil Cask. Sam Short, in Locomotive Engineering: I hada funny
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