. Railway mechanical engineer . on the southside. The front ends of the tubes are heated with an oilburner to anneal them and they are cut to length and sentto the erecting shop to be reapplied. Superheater flues are handled in a similar manner. Thepush cars enter the shop by the center track. The flues arecleaned and the back end is cut off, and the car is then seton the diagonal track next to the furnace. The safe end isinserted in the furnace but not welded, being swedged downto enter the flue for a distance of about one inch and weldedto the flue with the oxy-acetylene torch. After the flu
. Railway mechanical engineer . on the southside. The front ends of the tubes are heated with an oilburner to anneal them and they are cut to length and sentto the erecting shop to be reapplied. Superheater flues are handled in a similar manner. Thepush cars enter the shop by the center track. The flues arecleaned and the back end is cut off, and the car is then seton the diagonal track next to the furnace. The safe end isinserted in the furnace but not welded, being swedged downto enter the flue for a distance of about one inch and weldedto the flue with the oxy-acetylene torch. After the flues havehad safe ends welded on they are cut to length and testedand are then annealed and put back in the boiler. AIR PUMP STRAINER BY E. A. M. A simple air pump strainer, much more effective than theordinary type which has so long been used, is shown in thedrawing. In making it the casting from the old type strainer Filled Loosely wifh Z oz. ^oodoV I rjualily long cur/t/ Main /noisfenecf -V ■ ^ ] Brviss /1 Spring iVire. App/icaHon of Sfru/nerfo Pamp. A Simple Curled Hair Air Pump Strainer is used, and in this is inserted a cone-shaped tube of sheetmetal 6 in. long by 6J^ in. outside diameter at the large concave screen of j4-in. wire mesh is inserted in the tubeand soldered in place IV^ in. from the inner end. The re- January, 1919 RAILWAY MECHANICAL ENGINEER 17 mainder of the strainer is loosely filled with curled hair,about two ounces being required for this purpose. The outerend of the strainer is closed with a hinged lid of ^4-- wiremesh, soldered to a light brass wire frame. A slot in the sideof the tube is provided to take the latch formed on the endof the wire lid frame. In order to provide sufficient springfor the proper operation of the latch, about two inches ofthe frame at the latch end of the wire is left unattached tothe netting. The lid is hinged to the strainer at a pointopposite the latch. PRESENT CONDITION OF LOCOMOTIVESAND CARS Notwithstanding t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
